#!/usr/bin/env python3
"""Generate multiple images from all caption files recursively."""

import subprocess
import sys
import os
import re
from pathlib import Path


def main():
    script_dir = Path(__file__).parent.resolve()
    generator = script_dir / "generate_multiple.py"

    dry_run = "--dry-run" in sys.argv

    if not generator.exists():
        print(f"Error: generate_multiple.py not found in {script_dir}")
        sys.exit(1)

    print("Finding all caption files...")
    caption_files = list(Path(".").rglob("caption_*.txt"))

    total = len(caption_files)

    if total == 0:
        print("No caption files found!")
        sys.exit(0)

    print(f"Found {total} caption file(s)")

    if dry_run:
        print("\nDRY RUN MODE - Validating all caption files")

    counter = 0
    failed = 0
    total_existing = 0
    total_created = 0
    total_needed = 0
    
    # Default variations per caption file (matches generate_multiple.py default)
    variations_per_file = 1

    for caption_file in caption_files:
        counter += 1
        
        cmd = ["python3", str(generator), str(caption_file), "--count", str(variations_per_file)]
        if dry_run:
            cmd.append("--dry-run")

        try:
            result = subprocess.run(cmd, capture_output=True, text=True, check=True)
            
            # Parse output to count existing and created images
            # Look for "Found X existing variations" (also works with "found {existing} existing variations" in dry-run mode)
            existing_match = re.search(r'[Ff]ound (\d+) existing variations?', result.stdout)
            created_match = re.search(r'Created (\d+) new output directories?', result.stdout)
            
            if existing_match:
                existing = int(existing_match.group(1))
                total_existing += existing
                # Calculate how many would be needed (max 0, can't be negative)
                needed = max(0, variations_per_file - existing)
                total_needed += needed
            if created_match:
                total_created += int(created_match.group(1))
            
            # Progress indicator
            status = "✓" if result.returncode == 0 else "✗"
            print(f"[{counter}/{total}] {status} {caption_file}")
        except subprocess.CalledProcessError as e:
            failed += 1
            print(f"[{counter}/{total}] ✗ {caption_file} - FAILED")

    print()
    print("=" * 50)
    
    if dry_run:
        print("DRY RUN COMPLETE")
        print("=" * 50)
        print(f"Caption files validated: {total}")
        print(f"Images already existing: {total_existing}")
        print(f"Images would be created: {total_needed}")
        print(f"Total when complete:     {total_existing + total_needed}")
        if failed == 0:
            print(f"✓ All caption files validated successfully!")
        else:
            print(f"✗ {failed} of {total} caption file(s) failed validation")
            sys.exit(1)
    else:
        print("GENERATION COMPLETE")
        print("=" * 50)
        print(f"Caption files processed: {total}")
        print(f"Images already existing: {total_existing}")
        print(f"Images newly created:     {total_created}")
        print(f"Total images now:         {total_existing + total_created}")
        if failed > 0:
            print(f"Failed:                   {failed}")


if __name__ == "__main__":
    main()