"""
Custom collectstatic command that automatically builds CSS first.
Overrides Django's default collectstatic to include pnpm build.
"""

import subprocess
import sys
from pathlib import Path
from django.conf import settings
from django.contrib.staticfiles.management.commands.collectstatic import (
    Command as CollectstaticCommand,
)


class Command(CollectstaticCommand):
    help = "Collect static files (automatically builds CSS first)"

    def handle(self, *args, **options):
        """Build CSS before collecting static files."""
        self.stdout.write(self.style.SUCCESS("Building CSS with pnpm..."))

        try:
            # Run pnpm build
            result = subprocess.run(
                ["pnpm", "run", "build"],
                cwd=settings.BASE_DIR,
                capture_output=True,
                text=True,
                timeout=60,  # 60 second timeout
            )

            if result.returncode != 0:
                self.stdout.write(self.style.ERROR("✗ CSS build failed:"))
                self.stdout.write(result.stderr)
                sys.exit(1)

            # Verify output.css was created
            output_css = Path(settings.BASE_DIR) / "static" / "css" / "output.css"
            if not output_css.exists():
                self.stdout.write(
                    self.style.ERROR("✗ CSS build failed: output.css not generated")
                )
                sys.exit(1)

            # Show file size
            size_kb = output_css.stat().st_size / 1024
            self.stdout.write(
                self.style.SUCCESS(f"✓ CSS built successfully ({size_kb:.1f}KB)\n")
            )

        except FileNotFoundError:
            self.stdout.write(
                self.style.ERROR(
                    "✗ Error: pnpm not found. Install pnpm to build CSS.\n"
                    "See README.md for setup instructions."
                )
            )
            sys.exit(1)
        except subprocess.TimeoutExpired:
            self.stdout.write(self.style.ERROR("✗ CSS build timed out (>60s)"))
            sys.exit(1)
        except Exception as e:
            self.stdout.write(self.style.ERROR(f"✗ CSS build error: {e}"))
            sys.exit(1)

        # Run normal collectstatic
        super().handle(*args, **options)