#!/usr/bin/env python3
"""
generate-script-contents.py — Generate script-contents.json from known cron job scripts.

Reads the ops-status.json to find all referenced scripts, reads their content
from the filesystem, and writes script-contents.json to the ops data directory.
"""
import json
import os
import subprocess
import sys
from pathlib import Path

OUTPUT_PATH = Path("/var/www/ops/data/script-contents.json")
STATUS_PATH = Path("/var/www/ops/data/ops-status.json")
SCRIPT_DIRS = [
    Path("/root/.hermes/scripts"),
    Path("/root/.hermes/cron"),
    Path("/root"),
]

def find_script(name: str) -> Path | None:
    """Find a script file by name in known script directories."""
    if not name:
        return None
    for d in SCRIPT_DIRS:
        p = d / name
        if p.exists() and p.is_file():
            return p
    # Try without leading path components
    basename = Path(name).name
    for d in SCRIPT_DIRS:
        p = d / basename
        if p.exists() and p.is_file():
            return p
    return None

def read_script_content(path: Path) -> str | None:
    """Read a script file, returning first 5000 chars or None."""
    try:
        content = path.read_text(encoding="utf-8", errors="replace")
        if len(content) > 5000:
            content = content[:5000] + "\n\n# ... (truncated, full file is larger)"
        return content
    except Exception:
        return None

def main():
    if not STATUS_PATH.exists():
        print(f"Status file not found: {STATUS_PATH}", file=sys.stderr)
        return

    try:
        data = json.loads(STATUS_PATH.read_text())
    except (json.JSONDecodeError, OSError) as e:
        print(f"Failed to read status: {e}", file=sys.stderr)
        return

    cron_jobs = data.get("cron_jobs", [])
    result = {}

    for job in cron_jobs:
        script_name = job.get("script", "")
        if not script_name:
            continue
        script_path = find_script(script_name)
        if script_path:
            content = read_script_content(script_path)
            if content:
                result[script_name] = {
                    "full_path": str(script_path),
                    "content": content,
                }

    OUTPUT_PATH.parent.mkdir(parents=True, exist_ok=True)
    OUTPUT_PATH.write_text(json.dumps(result, indent=2))
    print(f"Wrote {len(result)} script contents to {OUTPUT_PATH}")

if __name__ == "__main__":
    main()