# AGENTS.md

## Context
- This project exposes a Flask API that uses Playwright to scrape Yahoo Finance options chains.
- Entry point: `scraper_service.py` (launched via `runner.bat` or directly with Python).
- The scraper loads the Yahoo options page (optionally with `?date=`) and validates expirations using the YYMMDD code embedded in contract symbols.
- Option chains come from the embedded `optionChain` JSON when available, with an HTML table fallback.

## API
- Route: `GET /scrape_sync`
- Query params:
  - `stock`: symbol (default `MSFT`).
  - `expiration|expiry|date`: epoch seconds (Yahoo date param) or a date string matching `DATE_FORMATS`.
  - `strikeLimit`: number of nearest strikes to return per side (default `25`).
- Behavior:
  - If `strikeLimit` is greater than available strikes, all available rows are returned.
  - `pruned_calls_count` and `pruned_puts_count` report how many rows were removed beyond the limit.
  - `selected_expiration` reports the resolved expiry (epoch + label), and mismatches return an error.
- Route: `GET /profile`
- Query params:
  - `stock`: symbol (default `MSFT`).
- Behavior:
  - Loads `https://finance.yahoo.com/quote/<SYMBOL>/` with Playwright.
  - Pulls the embedded SvelteKit payloads (quoteSummary, quote, quoteType, ratings, recommendations).
  - Returns a pruned JSON with valuation, profitability, growth, financial strength, cashflow, ownership, analyst, earnings, and performance summaries.

## Guard Rails
- Run local 10-cycle validation (4 stocks x 4 expiries) before any deploy or push.
- Run the same 10-cycle validation against the docker container before pushing the image.
- Do not push if any response contains `error` or if contract symbols do not contain the expected YYMMDD code.
- Keep Playwright version aligned with the docker base image (`mcr.microsoft.com/playwright/python:v1.57.0-jammy`).
- Keep the API port open after a successful deploy so it can be tested immediately.

## Testing
- Local server:
  - Start: `.\venv\Scripts\python.exe scraper_service.py`
  - Validate: `python scripts/test_cycles.py --base-url http://127.0.0.1:9777/scrape_sync`
- Profile validation (local server):
  - Validate: `python scripts/test_profile_cycles.py --base-url http://127.0.0.1:9777/profile --runs 8`
- Docker server:
  - Start: `docker run --rm -p 9777:9777 rushabhtechie/yahoo-scraper:latest`
  - Validate: `python scripts/test_cycles.py --base-url http://127.0.0.1:9777/scrape_sync`
- Profile validation (docker server):
  - Validate: `python scripts/test_profile_cycles.py --base-url http://127.0.0.1:9777/profile --runs 8`

## Update Log (2025-12-28)
- Added `/profile` endpoint backed by SvelteKit payload parsing (quoteSummary, quote, quoteType, ratings, recommendations).
- `/profile` response trimmed to focus on valuation, profitability, growth, financial strength, cashflow, ownership, analyst, earnings, and performance summaries.
- Validation ensures quote data matches the requested symbol, with issues reported in `validation`.
- Issue encountered: existing server instance bound to port 9777 without `/profile`, resolved by restarting the service with the updated script.
- Tests executed (local):
  - `.\venv\Scripts\python.exe scripts/test_profile_cycles.py --runs 8 --timeout 180`
  - `.\venv\Scripts\python.exe scripts\test_cycles.py --base-url http://127.0.0.1:9777/scrape_sync`
- Tests executed (docker):
  - `docker build -t rushabhtechie/yahoo-scraper:latest .`
  - `.\venv\Scripts\python.exe scripts\test_cycles.py --base-url http://127.0.0.1:9777/scrape_sync`
  - `.\venv\Scripts\python.exe scripts\test_profile_cycles.py --base-url http://127.0.0.1:9777/profile --runs 8 --timeout 180`
- The test harness verifies:
  - Requested expiration matches `selected_expiration.value`.
  - Contract symbols include the expected YYMMDD code.
  - `total_calls`/`total_puts` match `min(strikeLimit, available)`.
  - `pruned_*_count` equals the number of rows removed.

## Docker
- Build: `docker build -t rushabhtechie/yahoo-scraper:latest .`
- Run (CPU): `docker run --rm -p 9777:9777 rushabhtechie/yahoo-scraper:latest`
- The container uses the Playwright base image with bundled browsers.

## GPU Acceleration
- GPU is auto-detected via `NVIDIA_VISIBLE_DEVICES`, `/dev/nvidia0`, or `/dev/dri`.
- Override detection:
  - Force on: `ENABLE_GPU=1`
  - Force off: `ENABLE_GPU=0`
- Docker (NVIDIA): `docker run --rm --gpus all -e ENABLE_GPU=1 -p 9777:9777 rushabhtechie/yahoo-scraper:latest`
- Docker (AMD/Intel): `docker run --rm --device=/dev/dri --group-add video -e ENABLE_GPU=1 -p 9777:9777 rushabhtechie/yahoo-scraper:latest`

## Line-by-line explanation of scraper_service.py

- Line 1: Import symbols or modules. Code: `from flask import Flask, jsonify, request`
- Line 2: Import symbols or modules. Code: `from playwright.sync_api import sync_playwright`
- Line 3: Import symbols or modules. Code: `from bs4 import BeautifulSoup`
- Line 4: Import symbols or modules. Code: `from datetime import datetime, timezone`
- Line 5: Import symbols or modules. Code: `import urllib.parse`
- Line 6: Import symbols or modules. Code: `import logging`
- Line 7: Import symbols or modules. Code: `import json`
- Line 8: Import symbols or modules. Code: `import re`
- Line 9: Import symbols or modules. Code: `import time`
- Line 10: Import symbols or modules. Code: `import os`
- Line 11: Blank line for readability. Code: `<blank>`
- Line 12: Execute the statement as written. Code: `app = Flask(__name__)`
- Line 13: Blank line for readability. Code: `<blank>`
- Line 14: Comment describing the next block. Code: `# Logging`
- Line 15: Execute the statement as written. Code: `logging.basicConfig(`
- Line 16: Execute the statement as written. Code: `    level=logging.INFO,`
- Line 17: Execute the statement as written. Code: `    format="%(asctime)s [%(levelname)s] %(message)s"`
- Line 18: Execute the statement as written. Code: `)`
- Line 19: Execute the statement as written. Code: `app.logger.setLevel(logging.INFO)`
- Line 20: Blank line for readability. Code: `<blank>`
- Line 21: Execute the statement as written. Code: `DATE_FORMATS = (`
- Line 22: Execute the statement as written. Code: `    "%Y-%m-%d",`
- Line 23: Execute the statement as written. Code: `    "%Y/%m/%d",`
- Line 24: Execute the statement as written. Code: `    "%Y%m%d",`
- Line 25: Execute the statement as written. Code: `    "%b %d, %Y",`
- Line 26: Execute the statement as written. Code: `    "%B %d, %Y",`
- Line 27: Execute the statement as written. Code: `)`
- Line 28: Blank line for readability. Code: `<blank>`
- Line 29: Execute the statement as written. Code: `GPU_ACCEL_ENV = "ENABLE_GPU"`
- Line 30: Blank line for readability. Code: `<blank>`
- Line 31: Blank line for readability. Code: `<blank>`
- Line 32: Define the parse_env_flag function. Code: `def parse_env_flag(value, default=False):`
- Line 33: Execute the statement as written. Code: `    if value is None:`
- Line 34: Execute the statement as written. Code: `        return default`
- Line 35: Execute the statement as written. Code: `    return str(value).strip().lower() in ("1", "true", "yes", "on")`
- Line 36: Blank line for readability. Code: `<blank>`
- Line 37: Blank line for readability. Code: `<blank>`
- Line 38: Define the detect_gpu_available function. Code: `def detect_gpu_available():`
- Line 39: Execute the statement as written. Code: `    env_value = os.getenv(GPU_ACCEL_ENV)`
- Line 40: Execute the statement as written. Code: `    if env_value is not None:`
- Line 41: Execute the statement as written. Code: `        return parse_env_flag(env_value, default=False)`
- Line 42: Blank line for readability. Code: `<blank>`
- Line 43: Execute the statement as written. Code: `    nvidia_visible = os.getenv("NVIDIA_VISIBLE_DEVICES")`
- Line 44: Execute the statement as written. Code: `    if nvidia_visible and nvidia_visible.lower() not in ("none", "void", "off"):`
- Line 45: Execute the statement as written. Code: `        return True`
- Line 46: Blank line for readability. Code: `<blank>`
- Line 47: Execute the statement as written. Code: `    if os.path.exists("/dev/nvidia0"):`
- Line 48: Execute the statement as written. Code: `        return True`
- Line 49: Blank line for readability. Code: `<blank>`
- Line 50: Execute the statement as written. Code: `    if os.path.exists("/dev/dri/renderD128") or os.path.exists("/dev/dri/card0"):`
- Line 51: Execute the statement as written. Code: `        return True`
- Line 52: Blank line for readability. Code: `<blank>`
- Line 53: Execute the statement as written. Code: `    return False`
- Line 54: Blank line for readability. Code: `<blank>`
- Line 55: Blank line for readability. Code: `<blank>`
- Line 56: Define the chromium_launch_args function. Code: `def chromium_launch_args():`
- Line 57: Execute the statement as written. Code: `    if not detect_gpu_available():`
- Line 58: Execute the statement as written. Code: `        return []`
- Line 59: Blank line for readability. Code: `<blank>`
- Line 60: Execute the statement as written. Code: `    if os.name == "nt":`
- Line 61: Execute the statement as written. Code: `        return ["--enable-gpu"]`
- Line 62: Blank line for readability. Code: `<blank>`
- Line 63: Execute the statement as written. Code: `    return [`
- Line 64: Execute the statement as written. Code: `        "--enable-gpu",`
- Line 65: Execute the statement as written. Code: `        "--ignore-gpu-blocklist",`
- Line 66: Execute the statement as written. Code: `        "--disable-software-rasterizer",`
- Line 67: Execute the statement as written. Code: `        "--use-gl=egl",`
- Line 68: Execute the statement as written. Code: `        "--enable-zero-copy",`
- Line 69: Execute the statement as written. Code: `        "--enable-gpu-rasterization",`
- Line 70: Execute the statement as written. Code: `    ]`
- Line 71: Blank line for readability. Code: `<blank>`
- Line 72: Blank line for readability. Code: `<blank>`
- Line 73: Define the parse_date function. Code: `def parse_date(value):`
- Line 74: Execute the statement as written. Code: `    for fmt in DATE_FORMATS:`
- Line 75: Execute the statement as written. Code: `        try:`
- Line 76: Execute the statement as written. Code: `            return datetime.strptime(value, fmt).date()`
- Line 77: Execute the statement as written. Code: `        except ValueError:`
- Line 78: Execute the statement as written. Code: `            continue`
- Line 79: Execute the statement as written. Code: `    return None`
- Line 80: Blank line for readability. Code: `<blank>`
- Line 81: Blank line for readability. Code: `<blank>`
- Line 82: Define the normalize_label function. Code: `def normalize_label(value):`
- Line 83: Execute the statement as written. Code: `    return " ".join(value.strip().split()).lower()`
- Line 84: Blank line for readability. Code: `<blank>`
- Line 85: Blank line for readability. Code: `<blank>`
- Line 86: Define the format_expiration_label function. Code: `def format_expiration_label(timestamp):`
- Line 87: Execute the statement as written. Code: `    try:`
- Line 88: Execute the statement as written. Code: `        return datetime.utcfromtimestamp(timestamp).strftime("%Y-%m-%d")`
- Line 89: Execute the statement as written. Code: `    except Exception:`
- Line 90: Execute the statement as written. Code: `        return str(timestamp)`
- Line 91: Blank line for readability. Code: `<blank>`
- Line 92: Blank line for readability. Code: `<blank>`
- Line 93: Define the format_percent function. Code: `def format_percent(value):`
- Line 94: Execute the statement as written. Code: `    if value is None:`
- Line 95: Execute the statement as written. Code: `        return None`
- Line 96: Execute the statement as written. Code: `    try:`
- Line 97: Execute the statement as written. Code: `        return f"{value * 100:.2f}%"`
- Line 98: Execute the statement as written. Code: `    except Exception:`
- Line 99: Execute the statement as written. Code: `        return None`
- Line 100: Blank line for readability. Code: `<blank>`
- Line 101: Blank line for readability. Code: `<blank>`
- Line 102: Define the extract_raw_value function. Code: `def extract_raw_value(value):`
- Line 103: Execute the statement as written. Code: `    if isinstance(value, dict):`
- Line 104: Execute the statement as written. Code: `        return value.get("raw")`
- Line 105: Execute the statement as written. Code: `    return value`
- Line 106: Blank line for readability. Code: `<blank>`
- Line 107: Blank line for readability. Code: `<blank>`
- Line 108: Define the extract_fmt_value function. Code: `def extract_fmt_value(value):`
- Line 109: Execute the statement as written. Code: `    if isinstance(value, dict):`
- Line 110: Execute the statement as written. Code: `        return value.get("fmt")`
- Line 111: Execute the statement as written. Code: `    return None`
- Line 112: Blank line for readability. Code: `<blank>`
- Line 113: Blank line for readability. Code: `<blank>`
- Line 114: Define the format_percent_value function. Code: `def format_percent_value(value):`
- Line 115: Execute the statement as written. Code: `    fmt = extract_fmt_value(value)`
- Line 116: Execute the statement as written. Code: `    if fmt is not None:`
- Line 117: Execute the statement as written. Code: `        return fmt`
- Line 118: Execute the statement as written. Code: `    return format_percent(extract_raw_value(value))`
- Line 119: Blank line for readability. Code: `<blank>`
- Line 120: Blank line for readability. Code: `<blank>`
- Line 121: Define the format_last_trade_date function. Code: `def format_last_trade_date(timestamp):`
- Line 122: Execute the statement as written. Code: `    timestamp = extract_raw_value(timestamp)`
- Line 123: Execute the statement as written. Code: `    if not timestamp:`
- Line 124: Execute the statement as written. Code: `        return None`
- Line 125: Execute the statement as written. Code: `    try:`
- Line 126: Execute the statement as written. Code: `        return datetime.fromtimestamp(timestamp).strftime("%m/%d/%Y %I:%M %p") + " EST"`
- Line 127: Execute the statement as written. Code: `    except Exception:`
- Line 128: Execute the statement as written. Code: `        return None`
- Line 129: Blank line for readability. Code: `<blank>`
- Line 130: Blank line for readability. Code: `<blank>`
- Line 131: Define the extract_option_chain_from_html function. Code: `def extract_option_chain_from_html(html):`
- Line 132: Execute the statement as written. Code: `    if not html:`
- Line 133: Execute the statement as written. Code: `        return None`
- Line 134: Blank line for readability. Code: `<blank>`
- Line 135: Execute the statement as written. Code: `    token = "\"body\":\""`
- Line 136: Execute the statement as written. Code: `    start = 0`
- Line 137: Execute the statement as written. Code: `    while True:`
- Line 138: Execute the statement as written. Code: `        idx = html.find(token, start)`
- Line 139: Execute the statement as written. Code: `        if idx == -1:`
- Line 140: Execute the statement as written. Code: `            break`
- Line 141: Execute the statement as written. Code: `        i = idx + len(token)`
- Line 142: Execute the statement as written. Code: `        escaped = False`
- Line 143: Execute the statement as written. Code: `        raw_chars = []`
- Line 144: Execute the statement as written. Code: `        while i < len(html):`
- Line 145: Execute the statement as written. Code: `            ch = html[i]`
- Line 146: Execute the statement as written. Code: `            if escaped:`
- Line 147: Execute the statement as written. Code: `                raw_chars.append(ch)`
- Line 148: Execute the statement as written. Code: `                escaped = False`
- Line 149: Execute the statement as written. Code: `            else:`
- Line 150: Execute the statement as written. Code: `                if ch == "\\":`
- Line 151: Execute the statement as written. Code: `                    raw_chars.append(ch)`
- Line 152: Execute the statement as written. Code: `                    escaped = True`
- Line 153: Execute the statement as written. Code: `                elif ch == "\"":`
- Line 154: Execute the statement as written. Code: `                    break`
- Line 155: Execute the statement as written. Code: `                else:`
- Line 156: Execute the statement as written. Code: `                    raw_chars.append(ch)`
- Line 157: Execute the statement as written. Code: `            i += 1`
- Line 158: Execute the statement as written. Code: `        raw = "".join(raw_chars)`
- Line 159: Execute the statement as written. Code: `        try:`
- Line 160: Execute the statement as written. Code: `            body_text = json.loads(f"\"{raw}\"")`
- Line 161: Execute the statement as written. Code: `        except json.JSONDecodeError:`
- Line 162: Execute the statement as written. Code: `            start = idx + len(token)`
- Line 163: Execute the statement as written. Code: `            continue`
- Line 164: Execute the statement as written. Code: `        if "optionChain" not in body_text:`
- Line 165: Execute the statement as written. Code: `            start = idx + len(token)`
- Line 166: Execute the statement as written. Code: `            continue`
- Line 167: Execute the statement as written. Code: `        try:`
- Line 168: Execute the statement as written. Code: `            payload = json.loads(body_text)`
- Line 169: Execute the statement as written. Code: `        except json.JSONDecodeError:`
- Line 170: Execute the statement as written. Code: `            start = idx + len(token)`
- Line 171: Execute the statement as written. Code: `            continue`
- Line 172: Execute the statement as written. Code: `        option_chain = payload.get("optionChain")`
- Line 173: Execute the statement as written. Code: `        if option_chain and option_chain.get("result"):`
- Line 174: Execute the statement as written. Code: `            return option_chain`
- Line 175: Blank line for readability. Code: `<blank>`
- Line 176: Execute the statement as written. Code: `        start = idx + len(token)`
- Line 177: Blank line for readability. Code: `<blank>`
- Line 178: Execute the statement as written. Code: `    return None`
- Line 179: Blank line for readability. Code: `<blank>`
- Line 180: Blank line for readability. Code: `<blank>`
- Line 181: Define the extract_expiration_dates_from_chain function. Code: `def extract_expiration_dates_from_chain(chain):`
- Line 182: Execute the statement as written. Code: `    if not chain:`
- Line 183: Execute the statement as written. Code: `        return []`
- Line 184: Blank line for readability. Code: `<blank>`
- Line 185: Execute the statement as written. Code: `    result = chain.get("result", [])`
- Line 186: Execute the statement as written. Code: `    if not result:`
- Line 187: Execute the statement as written. Code: `        return []`
- Line 188: Execute the statement as written. Code: `    return result[0].get("expirationDates", []) or []`
- Line 189: Blank line for readability. Code: `<blank>`
- Line 190: Blank line for readability. Code: `<blank>`
- Line 191: Define the normalize_chain_rows function. Code: `def normalize_chain_rows(rows):`
- Line 192: Execute the statement as written. Code: `    normalized = []`
- Line 193: Execute the statement as written. Code: `    for row in rows or []:`
- Line 194: Execute the statement as written. Code: `        normalized.append(`
- Line 195: Execute the statement as written. Code: `            {`
- Line 196: Execute the statement as written. Code: `                "Contract Name": row.get("contractSymbol"),`
- Line 197: Execute the statement as written. Code: `                "Last Trade Date (EST)": format_last_trade_date(`
- Line 198: Execute the statement as written. Code: `                    row.get("lastTradeDate")`
- Line 199: Execute the statement as written. Code: `                ),`
- Line 200: Execute the statement as written. Code: `                "Strike": extract_raw_value(row.get("strike")),`
- Line 201: Execute the statement as written. Code: `                "Last Price": extract_raw_value(row.get("lastPrice")),`
- Line 202: Execute the statement as written. Code: `                "Bid": extract_raw_value(row.get("bid")),`
- Line 203: Execute the statement as written. Code: `                "Ask": extract_raw_value(row.get("ask")),`
- Line 204: Execute the statement as written. Code: `                "Change": extract_raw_value(row.get("change")),`
- Line 205: Execute the statement as written. Code: `                "% Change": format_percent_value(row.get("percentChange")),`
- Line 206: Execute the statement as written. Code: `                "Volume": extract_raw_value(row.get("volume")),`
- Line 207: Execute the statement as written. Code: `                "Open Interest": extract_raw_value(row.get("openInterest")),`
- Line 208: Execute the statement as written. Code: `                "Implied Volatility": format_percent_value(`
- Line 209: Execute the statement as written. Code: `                    row.get("impliedVolatility")`
- Line 210: Execute the statement as written. Code: `                ),`
- Line 211: Execute the statement as written. Code: `            }`
- Line 212: Execute the statement as written. Code: `        )`
- Line 213: Execute the statement as written. Code: `    return normalized`
- Line 214: Blank line for readability. Code: `<blank>`
- Line 215: Blank line for readability. Code: `<blank>`
- Line 216: Define the build_rows_from_chain function. Code: `def build_rows_from_chain(chain):`
- Line 217: Execute the statement as written. Code: `    result = chain.get("result", []) if chain else []`
- Line 218: Execute the statement as written. Code: `    if not result:`
- Line 219: Execute the statement as written. Code: `        return [], []`
- Line 220: Execute the statement as written. Code: `    options = result[0].get("options", [])`
- Line 221: Execute the statement as written. Code: `    if not options:`
- Line 222: Execute the statement as written. Code: `        return [], []`
- Line 223: Execute the statement as written. Code: `    option = options[0]`
- Line 224: Execute the statement as written. Code: `    return (`
- Line 225: Execute the statement as written. Code: `        normalize_chain_rows(option.get("calls")),`
- Line 226: Execute the statement as written. Code: `        normalize_chain_rows(option.get("puts")),`
- Line 227: Execute the statement as written. Code: `    )`
- Line 228: Blank line for readability. Code: `<blank>`
- Line 229: Blank line for readability. Code: `<blank>`
- Line 230: Define the extract_contract_expiry_code function. Code: `def extract_contract_expiry_code(contract_name):`
- Line 231: Execute the statement as written. Code: `    if not contract_name:`
- Line 232: Execute the statement as written. Code: `        return None`
- Line 233: Execute the statement as written. Code: `    match = re.search(r"(\d{6})", contract_name)`
- Line 234: Execute the statement as written. Code: `    return match.group(1) if match else None`
- Line 235: Blank line for readability. Code: `<blank>`
- Line 236: Blank line for readability. Code: `<blank>`
- Line 237: Define the expected_expiry_code function. Code: `def expected_expiry_code(timestamp):`
- Line 238: Execute the statement as written. Code: `    if not timestamp:`
- Line 239: Execute the statement as written. Code: `        return None`
- Line 240: Execute the statement as written. Code: `    try:`
- Line 241: Execute the statement as written. Code: `        return datetime.utcfromtimestamp(timestamp).strftime("%y%m%d")`
- Line 242: Execute the statement as written. Code: `    except Exception:`
- Line 243: Execute the statement as written. Code: `        return None`
- Line 244: Blank line for readability. Code: `<blank>`
- Line 245: Blank line for readability. Code: `<blank>`
- Line 246: Define the extract_expiration_dates_from_html function. Code: `def extract_expiration_dates_from_html(html):`
- Line 247: Execute the statement as written. Code: `    if not html:`
- Line 248: Execute the statement as written. Code: `        return []`
- Line 249: Blank line for readability. Code: `<blank>`
- Line 250: Execute the statement as written. Code: `    patterns = (`
- Line 251: Execute the statement as written. Code: `        r'\\"expirationDates\\":\[(.*?)\]',`
- Line 252: Execute the statement as written. Code: `        r'"expirationDates":\[(.*?)\]',`
- Line 253: Execute the statement as written. Code: `    )`
- Line 254: Execute the statement as written. Code: `    match = None`
- Line 255: Execute the statement as written. Code: `    for pattern in patterns:`
- Line 256: Execute the statement as written. Code: `        match = re.search(pattern, html, re.DOTALL)`
- Line 257: Execute the statement as written. Code: `        if match:`
- Line 258: Execute the statement as written. Code: `            break`
- Line 259: Execute the statement as written. Code: `    if not match:`
- Line 260: Execute the statement as written. Code: `        return []`
- Line 261: Blank line for readability. Code: `<blank>`
- Line 262: Execute the statement as written. Code: `    raw = match.group(1)`
- Line 263: Execute the statement as written. Code: `    values = []`
- Line 264: Execute the statement as written. Code: `    for part in raw.split(","):`
- Line 265: Execute the statement as written. Code: `        part = part.strip()`
- Line 266: Execute the statement as written. Code: `        if part.isdigit():`
- Line 267: Execute the statement as written. Code: `            try:`
- Line 268: Execute the statement as written. Code: `                values.append(int(part))`
- Line 269: Execute the statement as written. Code: `            except Exception:`
- Line 270: Execute the statement as written. Code: `                continue`
- Line 271: Execute the statement as written. Code: `    return values`
- Line 272: Blank line for readability. Code: `<blank>`
- Line 273: Blank line for readability. Code: `<blank>`
- Line 274: Define the build_expiration_options function. Code: `def build_expiration_options(expiration_dates):`
- Line 275: Execute the statement as written. Code: `    options = []`
- Line 276: Execute the statement as written. Code: `    for value in expiration_dates or []:`
- Line 277: Execute the statement as written. Code: `        try:`
- Line 278: Execute the statement as written. Code: `            value_int = int(value)`
- Line 279: Execute the statement as written. Code: `        except Exception:`
- Line 280: Execute the statement as written. Code: `            continue`
- Line 281: Blank line for readability. Code: `<blank>`
- Line 282: Execute the statement as written. Code: `        label = format_expiration_label(value_int)`
- Line 283: Execute the statement as written. Code: `        try:`
- Line 284: Execute the statement as written. Code: `            date_value = datetime.utcfromtimestamp(value_int).date()`
- Line 285: Execute the statement as written. Code: `        except Exception:`
- Line 286: Execute the statement as written. Code: `            date_value = None`
- Line 287: Blank line for readability. Code: `<blank>`
- Line 288: Execute the statement as written. Code: `        options.append({"value": value_int, "label": label, "date": date_value})`
- Line 289: Execute the statement as written. Code: `    return sorted(options, key=lambda x: x["value"])`
- Line 290: Blank line for readability. Code: `<blank>`
- Line 291: Blank line for readability. Code: `<blank>`
- Line 292: Define the resolve_expiration function. Code: `def resolve_expiration(expiration, options):`
- Line 293: Execute the statement as written. Code: `    if not expiration:`
- Line 294: Execute the statement as written. Code: `        return None, None`
- Line 295: Blank line for readability. Code: `<blank>`
- Line 296: Execute the statement as written. Code: `    raw = expiration.strip()`
- Line 297: Execute the statement as written. Code: `    if not raw:`
- Line 298: Execute the statement as written. Code: `        return None, None`
- Line 299: Blank line for readability. Code: `<blank>`
- Line 300: Execute the statement as written. Code: `    if raw.isdigit():`
- Line 301: Execute the statement as written. Code: `        value = int(raw)`
- Line 302: Execute the statement as written. Code: `        if options:`
- Line 303: Execute the statement as written. Code: `            for opt in options:`
- Line 304: Execute the statement as written. Code: `                if opt.get("value") == value:`
- Line 305: Execute the statement as written. Code: `                    return value, opt.get("label")`
- Line 306: Execute the statement as written. Code: `            return None, None`
- Line 307: Execute the statement as written. Code: `        return value, format_expiration_label(value)`
- Line 308: Blank line for readability. Code: `<blank>`
- Line 309: Execute the statement as written. Code: `    requested_date = parse_date(raw)`
- Line 310: Execute the statement as written. Code: `    if requested_date:`
- Line 311: Execute the statement as written. Code: `        for opt in options:`
- Line 312: Execute the statement as written. Code: `            if opt.get("date") == requested_date:`
- Line 313: Execute the statement as written. Code: `                return opt.get("value"), opt.get("label")`
- Line 314: Execute the statement as written. Code: `        return None, None`
- Line 315: Blank line for readability. Code: `<blank>`
- Line 316: Execute the statement as written. Code: `    normalized = normalize_label(raw)`
- Line 317: Execute the statement as written. Code: `    for opt in options:`
- Line 318: Execute the statement as written. Code: `        if normalize_label(opt.get("label", "")) == normalized:`
- Line 319: Execute the statement as written. Code: `            return opt.get("value"), opt.get("label")`
- Line 320: Blank line for readability. Code: `<blank>`
- Line 321: Execute the statement as written. Code: `    return None, None`
- Line 322: Blank line for readability. Code: `<blank>`
- Line 323: Blank line for readability. Code: `<blank>`
- Line 324: Define the wait_for_tables function. Code: `def wait_for_tables(page):`
- Line 325: Execute the statement as written. Code: `    try:`
- Line 326: Execute the statement as written. Code: `        page.wait_for_selector(`
- Line 327: Execute the statement as written. Code: `            "section[data-testid='options-list-table'] table",`
- Line 328: Execute the statement as written. Code: `            timeout=30000,`
- Line 329: Execute the statement as written. Code: `        )`
- Line 330: Execute the statement as written. Code: `    except Exception:`
- Line 331: Execute the statement as written. Code: `        page.wait_for_selector("table", timeout=30000)`
- Line 332: Blank line for readability. Code: `<blank>`
- Line 333: Execute the statement as written. Code: `    for _ in range(30):  # 30 * 1s = 30 seconds`
- Line 334: Execute the statement as written. Code: `        tables = page.query_selector_all(`
- Line 335: Execute the statement as written. Code: `            "section[data-testid='options-list-table'] table"`
- Line 336: Execute the statement as written. Code: `        )`
- Line 337: Execute the statement as written. Code: `        if len(tables) >= 2:`
- Line 338: Execute the statement as written. Code: `            return tables`
- Line 339: Execute the statement as written. Code: `        tables = page.query_selector_all("table")`
- Line 340: Execute the statement as written. Code: `        if len(tables) >= 2:`
- Line 341: Execute the statement as written. Code: `            return tables`
- Line 342: Execute the statement as written. Code: `        time.sleep(1)`
- Line 343: Execute the statement as written. Code: `    return []`
- Line 344: Blank line for readability. Code: `<blank>`
- Line 345: Blank line for readability. Code: `<blank>`
- Line 346: Define the parse_strike_limit function. Code: `def parse_strike_limit(value, default=25):`
- Line 347: Execute the statement as written. Code: `    if value is None:`
- Line 348: Execute the statement as written. Code: `        return default`
- Line 349: Execute the statement as written. Code: `    try:`
- Line 350: Execute the statement as written. Code: `        limit = int(value)`
- Line 351: Execute the statement as written. Code: `    except (TypeError, ValueError):`
- Line 352: Execute the statement as written. Code: `        return default`
- Line 353: Execute the statement as written. Code: `    return limit if limit > 0 else default`
- Line 354: Blank line for readability. Code: `<blank>`
- Line 355: Blank line for readability. Code: `<blank>`
- Line 356: Define the scrape_yahoo_options function. Code: `def scrape_yahoo_options(symbol, expiration=None, strike_limit=25):`
- Line 357: Define the parse_table function. Code: `    def parse_table(table_html, side):`
- Line 358: Execute the statement as written. Code: `        if not table_html:`
- Line 359: Execute the statement as written. Code: `            app.logger.warning("No %s table HTML for %s", side, symbol)`
- Line 360: Execute the statement as written. Code: `            return []`
- Line 361: Blank line for readability. Code: `<blank>`
- Line 362: Execute the statement as written. Code: `        soup = BeautifulSoup(table_html, "html.parser")`
- Line 363: Blank line for readability. Code: `<blank>`
- Line 364: Execute the statement as written. Code: `        headers = [th.get_text(strip=True) for th in soup.select("thead th")]`
- Line 365: Execute the statement as written. Code: `        rows = soup.select("tbody tr")`
- Line 366: Blank line for readability. Code: `<blank>`
- Line 367: Execute the statement as written. Code: `        parsed = []`
- Line 368: Execute the statement as written. Code: `        for r in rows:`
- Line 369: Execute the statement as written. Code: `            tds = r.find_all("td")`
- Line 370: Execute the statement as written. Code: `            if len(tds) != len(headers):`
- Line 371: Execute the statement as written. Code: `                continue`
- Line 372: Blank line for readability. Code: `<blank>`
- Line 373: Execute the statement as written. Code: `            item = {}`
- Line 374: Execute the statement as written. Code: `            for i, c in enumerate(tds):`
- Line 375: Execute the statement as written. Code: `                key = headers[i]`
- Line 376: Execute the statement as written. Code: `                val = c.get_text(" ", strip=True)`
- Line 377: Blank line for readability. Code: `<blank>`
- Line 378: Comment describing the next block. Code: `                # Convert numeric fields`
- Line 379: Execute the statement as written. Code: `                if key in ["Strike", "Last Price", "Bid", "Ask", "Change"]:`
- Line 380: Execute the statement as written. Code: `                    try:`
- Line 381: Execute the statement as written. Code: `                        val = float(val.replace(",", ""))`
- Line 382: Execute the statement as written. Code: `                    except Exception:`
- Line 383: Execute the statement as written. Code: `                        val = None`
- Line 384: Execute the statement as written. Code: `                elif key in ["Volume", "Open Interest"]:`
- Line 385: Execute the statement as written. Code: `                    try:`
- Line 386: Execute the statement as written. Code: `                        val = int(val.replace(",", ""))`
- Line 387: Execute the statement as written. Code: `                    except Exception:`
- Line 388: Execute the statement as written. Code: `                        val = None`
- Line 389: Execute the statement as written. Code: `                elif val in ["-", ""]:`
- Line 390: Execute the statement as written. Code: `                    val = None`
- Line 391: Blank line for readability. Code: `<blank>`
- Line 392: Execute the statement as written. Code: `                item[key] = val`
- Line 393: Blank line for readability. Code: `<blank>`
- Line 394: Execute the statement as written. Code: `            parsed.append(item)`
- Line 395: Blank line for readability. Code: `<blank>`
- Line 396: Execute the statement as written. Code: `        app.logger.info("Parsed %d %s rows", len(parsed), side)`
- Line 397: Execute the statement as written. Code: `        return parsed`
- Line 398: Blank line for readability. Code: `<blank>`
- Line 399: Define the read_option_chain function. Code: `    def read_option_chain(page):`
- Line 400: Execute the statement as written. Code: `        html = page.content()`
- Line 401: Execute the statement as written. Code: `        option_chain = extract_option_chain_from_html(html)`
- Line 402: Execute the statement as written. Code: `        if option_chain:`
- Line 403: Execute the statement as written. Code: `            expiration_dates = extract_expiration_dates_from_chain(option_chain)`
- Line 404: Execute the statement as written. Code: `        else:`
- Line 405: Execute the statement as written. Code: `            expiration_dates = extract_expiration_dates_from_html(html)`
- Line 406: Execute the statement as written. Code: `        return option_chain, expiration_dates`
- Line 407: Blank line for readability. Code: `<blank>`
- Line 408: Define the has_expected_expiry function. Code: `    def has_expected_expiry(options, expected_code):`
- Line 409: Execute the statement as written. Code: `        if not expected_code:`
- Line 410: Execute the statement as written. Code: `            return False`
- Line 411: Execute the statement as written. Code: `        for row in options or []:`
- Line 412: Execute the statement as written. Code: `            name = row.get("Contract Name")`
- Line 413: Execute the statement as written. Code: `            if extract_contract_expiry_code(name) == expected_code:`
- Line 414: Execute the statement as written. Code: `                return True`
- Line 415: Execute the statement as written. Code: `        return False`
- Line 416: Blank line for readability. Code: `<blank>`
- Line 417: Execute the statement as written. Code: `    encoded = urllib.parse.quote(symbol, safe="")`
- Line 418: Execute the statement as written. Code: `    base_url = f"https://finance.yahoo.com/quote/{encoded}/options/"`
- Line 419: Execute the statement as written. Code: `    requested_expiration = expiration.strip() if expiration else None`
- Line 420: Execute the statement as written. Code: `    if not requested_expiration:`
- Line 421: Execute the statement as written. Code: `        requested_expiration = None`
- Line 422: Execute the statement as written. Code: `    url = base_url`
- Line 423: Blank line for readability. Code: `<blank>`
- Line 424: Execute the statement as written. Code: `    app.logger.info(`
- Line 425: Execute the statement as written. Code: `        "Starting scrape for symbol=%s expiration=%s url=%s",`
- Line 426: Execute the statement as written. Code: `        symbol,`
- Line 427: Execute the statement as written. Code: `        requested_expiration,`
- Line 428: Execute the statement as written. Code: `        base_url,`
- Line 429: Execute the statement as written. Code: `    )`
- Line 430: Blank line for readability. Code: `<blank>`
- Line 431: Execute the statement as written. Code: `    calls_html = None`
- Line 432: Execute the statement as written. Code: `    puts_html = None`
- Line 433: Execute the statement as written. Code: `    calls_full = []`
- Line 434: Execute the statement as written. Code: `    puts_full = []`
- Line 435: Execute the statement as written. Code: `    price = None`
- Line 436: Execute the statement as written. Code: `    selected_expiration_value = None`
- Line 437: Execute the statement as written. Code: `    selected_expiration_label = None`
- Line 438: Execute the statement as written. Code: `    expiration_options = []`
- Line 439: Execute the statement as written. Code: `    target_date = None`
- Line 440: Execute the statement as written. Code: `    fallback_to_base = False`
- Line 441: Blank line for readability. Code: `<blank>`
- Line 442: Execute the statement as written. Code: `    with sync_playwright() as p:`
- Line 443: Execute the statement as written. Code: `        launch_args = chromium_launch_args()`
- Line 444: Execute the statement as written. Code: `        if launch_args:`
- Line 445: Execute the statement as written. Code: `            app.logger.info("GPU acceleration enabled")`
- Line 446: Execute the statement as written. Code: `        else:`
- Line 447: Execute the statement as written. Code: `            app.logger.info("GPU acceleration disabled")`
- Line 448: Execute the statement as written. Code: `        browser = p.chromium.launch(headless=True, args=launch_args)`
- Line 449: Execute the statement as written. Code: `        page = browser.new_page()`
- Line 450: Execute the statement as written. Code: `        page.set_extra_http_headers(`
- Line 451: Execute the statement as written. Code: `            {`
- Line 452: Execute the statement as written. Code: `                "User-Agent": (`
- Line 453: Execute the statement as written. Code: `                    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "`
- Line 454: Execute the statement as written. Code: `                    "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120 Safari/537.36"`
- Line 455: Execute the statement as written. Code: `                )`
- Line 456: Execute the statement as written. Code: `            }`
- Line 457: Execute the statement as written. Code: `        )`
- Line 458: Execute the statement as written. Code: `        page.set_default_timeout(60000)`
- Line 459: Blank line for readability. Code: `<blank>`
- Line 460: Execute the statement as written. Code: `        try:`
- Line 461: Execute the statement as written. Code: `            if requested_expiration:`
- Line 462: Execute the statement as written. Code: `                if requested_expiration.isdigit():`
- Line 463: Execute the statement as written. Code: `                    target_date = int(requested_expiration)`
- Line 464: Execute the statement as written. Code: `                    selected_expiration_value = target_date`
- Line 465: Execute the statement as written. Code: `                    selected_expiration_label = format_expiration_label(target_date)`
- Line 466: Execute the statement as written. Code: `                else:`
- Line 467: Execute the statement as written. Code: `                    parsed_date = parse_date(requested_expiration)`
- Line 468: Execute the statement as written. Code: `                    if parsed_date:`
- Line 469: Execute the statement as written. Code: `                        target_date = int(`
- Line 470: Execute the statement as written. Code: `                            datetime(`
- Line 471: Execute the statement as written. Code: `                                parsed_date.year,`
- Line 472: Execute the statement as written. Code: `                                parsed_date.month,`
- Line 473: Execute the statement as written. Code: `                                parsed_date.day,`
- Line 474: Execute the statement as written. Code: `                                tzinfo=timezone.utc,`
- Line 475: Execute the statement as written. Code: `                            ).timestamp()`
- Line 476: Execute the statement as written. Code: `                        )`
- Line 477: Execute the statement as written. Code: `                        selected_expiration_value = target_date`
- Line 478: Execute the statement as written. Code: `                        selected_expiration_label = format_expiration_label(target_date)`
- Line 479: Execute the statement as written. Code: `                    else:`
- Line 480: Execute the statement as written. Code: `                        fallback_to_base = True`
- Line 481: Blank line for readability. Code: `<blank>`
- Line 482: Execute the statement as written. Code: `            if target_date:`
- Line 483: Execute the statement as written. Code: `                url = f"{base_url}?date={target_date}"`
- Line 484: Blank line for readability. Code: `<blank>`
- Line 485: Execute the statement as written. Code: `            page.goto(url, wait_until="domcontentloaded", timeout=60000)`
- Line 486: Execute the statement as written. Code: `            app.logger.info("Page loaded (domcontentloaded) for %s", symbol)`
- Line 487: Blank line for readability. Code: `<blank>`
- Line 488: Execute the statement as written. Code: `            option_chain, expiration_dates = read_option_chain(page)`
- Line 489: Execute the statement as written. Code: `            app.logger.info("Option chain found: %s", bool(option_chain))`
- Line 490: Execute the statement as written. Code: `            expiration_options = build_expiration_options(expiration_dates)`
- Line 491: Blank line for readability. Code: `<blank>`
- Line 492: Execute the statement as written. Code: `            if fallback_to_base:`
- Line 493: Execute the statement as written. Code: `                resolved_value, resolved_label = resolve_expiration(`
- Line 494: Execute the statement as written. Code: `                    requested_expiration, expiration_options`
- Line 495: Execute the statement as written. Code: `                )`
- Line 496: Execute the statement as written. Code: `                if resolved_value is None:`
- Line 497: Execute the statement as written. Code: `                    return {`
- Line 498: Execute the statement as written. Code: `                        "error": "Requested expiration not available",`
- Line 499: Execute the statement as written. Code: `                        "stock": symbol,`
- Line 500: Execute the statement as written. Code: `                        "requested_expiration": requested_expiration,`
- Line 501: Execute the statement as written. Code: `                        "available_expirations": [`
- Line 502: Execute the statement as written. Code: `                            {"label": opt.get("label"), "value": opt.get("value")}`
- Line 503: Execute the statement as written. Code: `                            for opt in expiration_options`
- Line 504: Execute the statement as written. Code: `                        ],`
- Line 505: Execute the statement as written. Code: `                    }`
- Line 506: Blank line for readability. Code: `<blank>`
- Line 507: Execute the statement as written. Code: `                target_date = resolved_value`
- Line 508: Execute the statement as written. Code: `                selected_expiration_value = resolved_value`
- Line 509: Execute the statement as written. Code: `                selected_expiration_label = resolved_label or format_expiration_label(`
- Line 510: Execute the statement as written. Code: `                    resolved_value`
- Line 511: Execute the statement as written. Code: `                )`
- Line 512: Execute the statement as written. Code: `                url = f"{base_url}?date={resolved_value}"`
- Line 513: Execute the statement as written. Code: `                page.goto(url, wait_until="domcontentloaded", timeout=60000)`
- Line 514: Execute the statement as written. Code: `                app.logger.info("Page loaded (domcontentloaded) for %s", symbol)`
- Line 515: Blank line for readability. Code: `<blank>`
- Line 516: Execute the statement as written. Code: `                option_chain, expiration_dates = read_option_chain(page)`
- Line 517: Execute the statement as written. Code: `                expiration_options = build_expiration_options(expiration_dates)`
- Line 518: Blank line for readability. Code: `<blank>`
- Line 519: Execute the statement as written. Code: `            if target_date and expiration_options:`
- Line 520: Execute the statement as written. Code: `                matched = None`
- Line 521: Execute the statement as written. Code: `                for opt in expiration_options:`
- Line 522: Execute the statement as written. Code: `                    if opt.get("value") == target_date:`
- Line 523: Execute the statement as written. Code: `                        matched = opt`
- Line 524: Execute the statement as written. Code: `                        break`
- Line 525: Execute the statement as written. Code: `                if not matched:`
- Line 526: Execute the statement as written. Code: `                    return {`
- Line 527: Execute the statement as written. Code: `                        "error": "Requested expiration not available",`
- Line 528: Execute the statement as written. Code: `                        "stock": symbol,`
- Line 529: Execute the statement as written. Code: `                        "requested_expiration": requested_expiration,`
- Line 530: Execute the statement as written. Code: `                        "available_expirations": [`
- Line 531: Execute the statement as written. Code: `                            {"label": opt.get("label"), "value": opt.get("value")}`
- Line 532: Execute the statement as written. Code: `                            for opt in expiration_options`
- Line 533: Execute the statement as written. Code: `                        ],`
- Line 534: Execute the statement as written. Code: `                    }`
- Line 535: Execute the statement as written. Code: `                selected_expiration_value = matched.get("value")`
- Line 536: Execute the statement as written. Code: `                selected_expiration_label = matched.get("label")`
- Line 537: Execute the statement as written. Code: `            elif expiration_options and not target_date:`
- Line 538: Execute the statement as written. Code: `                selected_expiration_value = expiration_options[0].get("value")`
- Line 539: Execute the statement as written. Code: `                selected_expiration_label = expiration_options[0].get("label")`
- Line 540: Blank line for readability. Code: `<blank>`
- Line 541: Execute the statement as written. Code: `            calls_full, puts_full = build_rows_from_chain(option_chain)`
- Line 542: Execute the statement as written. Code: `            app.logger.info(`
- Line 543: Execute the statement as written. Code: `                "Option chain rows: calls=%d puts=%d",`
- Line 544: Execute the statement as written. Code: `                len(calls_full),`
- Line 545: Execute the statement as written. Code: `                len(puts_full),`
- Line 546: Execute the statement as written. Code: `            )`
- Line 547: Blank line for readability. Code: `<blank>`
- Line 548: Execute the statement as written. Code: `            if not calls_full and not puts_full:`
- Line 549: Execute the statement as written. Code: `                app.logger.info("Waiting for options tables...")`
- Line 550: Blank line for readability. Code: `<blank>`
- Line 551: Execute the statement as written. Code: `                tables = wait_for_tables(page)`
- Line 552: Execute the statement as written. Code: `                if len(tables) < 2:`
- Line 553: Execute the statement as written. Code: `                    app.logger.error(`
- Line 554: Execute the statement as written. Code: `                        "Only %d tables found; expected 2. HTML may have changed.",`
- Line 555: Execute the statement as written. Code: `                        len(tables),`
- Line 556: Execute the statement as written. Code: `                    )`
- Line 557: Execute the statement as written. Code: `                    return {"error": "Could not locate options tables", "stock": symbol}`
- Line 558: Blank line for readability. Code: `<blank>`
- Line 559: Execute the statement as written. Code: `                app.logger.info("Found %d tables. Extracting Calls & Puts.", len(tables))`
- Line 560: Blank line for readability. Code: `<blank>`
- Line 561: Execute the statement as written. Code: `                calls_html = tables[0].evaluate("el => el.outerHTML")`
- Line 562: Execute the statement as written. Code: `                puts_html = tables[1].evaluate("el => el.outerHTML")`
- Line 563: Blank line for readability. Code: `<blank>`
- Line 564: Comment describing the next block. Code: `            # --- Extract current price ---`
- Line 565: Execute the statement as written. Code: `            try:`
- Line 566: Comment describing the next block. Code: `                # Primary selector`
- Line 567: Execute the statement as written. Code: `                price_text = page.locator(`
- Line 568: Execute the statement as written. Code: `                    "fin-streamer[data-field='regularMarketPrice']"`
- Line 569: Execute the statement as written. Code: `                ).inner_text()`
- Line 570: Execute the statement as written. Code: `                price = float(price_text.replace(",", ""))`
- Line 571: Execute the statement as written. Code: `            except Exception:`
- Line 572: Execute the statement as written. Code: `                try:`
- Line 573: Comment describing the next block. Code: `                    # Fallback`
- Line 574: Execute the statement as written. Code: `                    price_text = page.locator("span[data-testid='qsp-price']").inner_text()`
- Line 575: Execute the statement as written. Code: `                    price = float(price_text.replace(",", ""))`
- Line 576: Execute the statement as written. Code: `                except Exception as e:`
- Line 577: Execute the statement as written. Code: `                    app.logger.warning("Failed to extract price for %s: %s", symbol, e)`
- Line 578: Blank line for readability. Code: `<blank>`
- Line 579: Execute the statement as written. Code: `            app.logger.info("Current price for %s = %s", symbol, price)`
- Line 580: Execute the statement as written. Code: `        finally:`
- Line 581: Execute the statement as written. Code: `            browser.close()`
- Line 582: Blank line for readability. Code: `<blank>`
- Line 583: Execute the statement as written. Code: `    if not calls_full and not puts_full and calls_html and puts_html:`
- Line 584: Execute the statement as written. Code: `        calls_full = parse_table(calls_html, "calls")`
- Line 585: Execute the statement as written. Code: `        puts_full = parse_table(puts_html, "puts")`
- Line 586: Blank line for readability. Code: `<blank>`
- Line 587: Execute the statement as written. Code: `    expected_code = expected_expiry_code(target_date)`
- Line 588: Execute the statement as written. Code: `    if expected_code:`
- Line 589: Execute the statement as written. Code: `        if not has_expected_expiry(calls_full, expected_code) and not has_expected_expiry(`
- Line 590: Execute the statement as written. Code: `            puts_full, expected_code`
- Line 591: Execute the statement as written. Code: `        ):`
- Line 592: Execute the statement as written. Code: `            return {`
- Line 593: Execute the statement as written. Code: `                "error": "Options chain does not match requested expiration",`
- Line 594: Execute the statement as written. Code: `                "stock": symbol,`
- Line 595: Execute the statement as written. Code: `                "requested_expiration": requested_expiration,`
- Line 596: Execute the statement as written. Code: `                "expected_expiration_code": expected_code,`
- Line 597: Execute the statement as written. Code: `                "selected_expiration": {`
- Line 598: Execute the statement as written. Code: `                    "value": selected_expiration_value,`
- Line 599: Execute the statement as written. Code: `                    "label": selected_expiration_label,`
- Line 600: Execute the statement as written. Code: `                },`
- Line 601: Execute the statement as written. Code: `            }`
- Line 602: Blank line for readability. Code: `<blank>`
- Line 603: Comment describing the next block. Code: `    # ----------------------------------------------------------------------`
- Line 604: Comment describing the next block. Code: `    # Pruning logic`
- Line 605: Comment describing the next block. Code: `    # ----------------------------------------------------------------------`
- Line 606: Define the prune_nearest function. Code: `    def prune_nearest(options, price_value, limit=25, side=""):`
- Line 607: Execute the statement as written. Code: `        if price_value is None:`
- Line 608: Execute the statement as written. Code: `            return options, 0`
- Line 609: Blank line for readability. Code: `<blank>`
- Line 610: Execute the statement as written. Code: `        numeric = [o for o in options if isinstance(o.get("Strike"), (int, float))]`
- Line 611: Blank line for readability. Code: `<blank>`
- Line 612: Execute the statement as written. Code: `        if len(numeric) <= limit:`
- Line 613: Execute the statement as written. Code: `            return numeric, 0`
- Line 614: Blank line for readability. Code: `<blank>`
- Line 615: Execute the statement as written. Code: `        sorted_opts = sorted(numeric, key=lambda x: abs(x["Strike"] - price_value))`
- Line 616: Execute the statement as written. Code: `        pruned = sorted_opts[:limit]`
- Line 617: Execute the statement as written. Code: `        pruned_count = len(options) - len(pruned)`
- Line 618: Execute the statement as written. Code: `        return pruned, pruned_count`
- Line 619: Blank line for readability. Code: `<blank>`
- Line 620: Execute the statement as written. Code: `    calls, pruned_calls = prune_nearest(`
- Line 621: Execute the statement as written. Code: `        calls_full,`
- Line 622: Execute the statement as written. Code: `        price,`
- Line 623: Execute the statement as written. Code: `        limit=strike_limit,`
- Line 624: Execute the statement as written. Code: `        side="calls",`
- Line 625: Execute the statement as written. Code: `    )`
- Line 626: Execute the statement as written. Code: `    puts, pruned_puts = prune_nearest(`
- Line 627: Execute the statement as written. Code: `        puts_full,`
- Line 628: Execute the statement as written. Code: `        price,`
- Line 629: Execute the statement as written. Code: `        limit=strike_limit,`
- Line 630: Execute the statement as written. Code: `        side="puts",`
- Line 631: Execute the statement as written. Code: `    )`
- Line 632: Blank line for readability. Code: `<blank>`
- Line 633: Define the strike_range function. Code: `    def strike_range(opts):`
- Line 634: Execute the statement as written. Code: `        strikes = [o["Strike"] for o in opts if isinstance(o.get("Strike"), (int, float))]`
- Line 635: Execute the statement as written. Code: `        return [min(strikes), max(strikes)] if strikes else [None, None]`
- Line 636: Blank line for readability. Code: `<blank>`
- Line 637: Execute the statement as written. Code: `    return {`
- Line 638: Execute the statement as written. Code: `        "stock": symbol,`
- Line 639: Execute the statement as written. Code: `        "url": url,`
- Line 640: Execute the statement as written. Code: `        "requested_expiration": requested_expiration,`
- Line 641: Execute the statement as written. Code: `        "selected_expiration": {`
- Line 642: Execute the statement as written. Code: `            "value": selected_expiration_value,`
- Line 643: Execute the statement as written. Code: `            "label": selected_expiration_label,`
- Line 644: Execute the statement as written. Code: `        },`
- Line 645: Execute the statement as written. Code: `        "current_price": price,`
- Line 646: Execute the statement as written. Code: `        "calls": calls,`
- Line 647: Execute the statement as written. Code: `        "puts": puts,`
- Line 648: Execute the statement as written. Code: `        "calls_strike_range": strike_range(calls),`
- Line 649: Execute the statement as written. Code: `        "puts_strike_range": strike_range(puts),`
- Line 650: Execute the statement as written. Code: `        "total_calls": len(calls),`
- Line 651: Execute the statement as written. Code: `        "total_puts": len(puts),`
- Line 652: Execute the statement as written. Code: `        "pruned_calls_count": pruned_calls,`
- Line 653: Execute the statement as written. Code: `        "pruned_puts_count": pruned_puts,`
- Line 654: Execute the statement as written. Code: `    }`
- Line 655: Blank line for readability. Code: `<blank>`
- Line 656: Blank line for readability. Code: `<blank>`
- Line 657: Attach a decorator to the next function. Code: `@app.route("/scrape_sync")`
- Line 658: Define the scrape_sync function. Code: `def scrape_sync():`
- Line 659: Execute the statement as written. Code: `    symbol = request.args.get("stock", "MSFT")`
- Line 660: Execute the statement as written. Code: `    expiration = (`
- Line 661: Execute the statement as written. Code: `        request.args.get("expiration")`
- Line 662: Execute the statement as written. Code: `        or request.args.get("expiry")`
- Line 663: Execute the statement as written. Code: `        or request.args.get("date")`
- Line 664: Execute the statement as written. Code: `    )`
- Line 665: Execute the statement as written. Code: `    strike_limit = parse_strike_limit(request.args.get("strikeLimit"), default=25)`
- Line 666: Execute the statement as written. Code: `    app.logger.info(`
- Line 667: Execute the statement as written. Code: `        "Received /scrape_sync request for symbol=%s expiration=%s strike_limit=%s",`
- Line 668: Execute the statement as written. Code: `        symbol,`
- Line 669: Execute the statement as written. Code: `        expiration,`
- Line 670: Execute the statement as written. Code: `        strike_limit,`
- Line 671: Execute the statement as written. Code: `    )`
- Line 672: Execute the statement as written. Code: `    return jsonify(scrape_yahoo_options(symbol, expiration, strike_limit))`
- Line 673: Blank line for readability. Code: `<blank>`
- Line 674: Blank line for readability. Code: `<blank>`
- Line 675: Run the Flask development server when executed as a script. Code: `if __name__ == "__main__":`
- Line 676: Execute the statement as written. Code: `    app.run(host="0.0.0.0", port=9777)`
