name: Build Awesome Database

on:
  schedule:
    # Run daily at 02:00 UTC
    - cron: '0 2 * * *'
  workflow_dispatch:  # Allow manual triggering
    inputs:
      index_mode:
        description: 'Indexing mode'
        required: false
        default: 'full'
        type: choice
        options:
          - full
          - sample

permissions:
  contents: read
  actions: write

jobs:
  build-database:
    runs-on: ubuntu-latest
    timeout-minutes: 180  # 3 hours max

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Setup pnpm
        uses: pnpm/action-setup@v3
        with:
          version: 10

      - name: Install dependencies
        run: |
          pnpm install
          pnpm rebuild better-sqlite3
          chmod +x awesome

      - name: Build awesome database
        id: build
        env:
          CI: true
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Capture start time
          START_TIME=$(date -u +"%Y-%m-%d %H:%M:%S UTC")
          echo "start_time=$START_TIME" >> $GITHUB_OUTPUT

          # Determine index mode
          INDEX_MODE="${{ github.event.inputs.index_mode || 'full' }}"
          echo "Index mode: $INDEX_MODE"

          # Build the index in non-interactive mode (170m timeout, job timeout is 180m)
          timeout 170m node -e "
            const db = require('./lib/database');
            const dbOps = require('./lib/db-operations');
            const indexer = require('./lib/indexer');

            (async () => {
              try {
                // Initialize database
                db.initialize();

                // Set GitHub token if available
                if (process.env.GITHUB_TOKEN) {
                  dbOps.setSetting('githubToken', process.env.GITHUB_TOKEN);
                  console.log('GitHub token configured');
                } else {
                  console.warn('⚠️  WARNING: No GitHub token found! Rate limit will be 60/hour instead of 5000/hour');
                }

                // Build index
                await indexer.buildIndex(false, '${INDEX_MODE}');

                // Close database
                db.close();

                console.log('Index built successfully');
                process.exit(0);
              } catch (error) {
                console.error('Failed to build index:', error.message);
                console.error(error.stack);
                process.exit(1);
              }
            })();
          " || {
            EXIT_CODE=$?
            if [ $EXIT_CODE -eq 124 ]; then
              echo "❌ Index building timed out after 170 minutes"
              echo "This may indicate rate limiting issues or too many lists to index"
            fi
            exit $EXIT_CODE
          }

          # Capture end time
          END_TIME=$(date -u +"%Y-%m-%d %H:%M:%S UTC")
          echo "end_time=$END_TIME" >> $GITHUB_OUTPUT

      - name: Gather database statistics
        id: stats
        run: |
          # Get database stats
          STATS=$(node -e "
            const db = require('./lib/database');
            const dbOps = require('./lib/db-operations');
            db.initialize();

            const stats = dbOps.getIndexStats();
            const dbPath = require('path').join(require('os').homedir(), '.awesome', 'awesome.db');
            const fs = require('fs');
            const fileSize = fs.existsSync(dbPath) ? fs.statSync(dbPath).size : 0;
            const fileSizeMB = (fileSize / (1024 * 1024)).toFixed(2);

            console.log(JSON.stringify({
              totalLists: stats.totalLists || 0,
              totalRepos: stats.totalRepositories || 0,
              totalReadmes: stats.totalReadmes || 0,
              sizeBytes: fileSize,
              sizeMB: fileSizeMB
            }));

            db.close();
          ")

          echo "Database statistics:"
          echo "$STATS" | jq .

          # Extract values for outputs
          TOTAL_LISTS=$(echo "$STATS" | jq -r '.totalLists')
          TOTAL_REPOS=$(echo "$STATS" | jq -r '.totalRepos')
          TOTAL_READMES=$(echo "$STATS" | jq -r '.totalReadmes')
          SIZE_MB=$(echo "$STATS" | jq -r '.sizeMB')

          echo "total_lists=$TOTAL_LISTS" >> $GITHUB_OUTPUT
          echo "total_repos=$TOTAL_REPOS" >> $GITHUB_OUTPUT
          echo "total_readmes=$TOTAL_READMES" >> $GITHUB_OUTPUT
          echo "size_mb=$SIZE_MB" >> $GITHUB_OUTPUT

      - name: Prepare database artifact
        run: |
          # Copy database from home directory
          DB_PATH="$HOME/.awesome/awesome.db"

          if [ ! -f "$DB_PATH" ]; then
            echo "Error: Database file not found at $DB_PATH"
            exit 1
          fi

          # Create artifact directory
          mkdir -p artifacts

          # Copy database with timestamp
          BUILD_DATE=$(date -u +"%Y%m%d-%H%M%S")
          cp "$DB_PATH" "artifacts/awesome-${BUILD_DATE}.db"
          cp "$DB_PATH" "artifacts/awesome-latest.db"

          # Create metadata file
          cat > artifacts/metadata.json <<EOF
          {
            "build_date": "$(date -u +"%Y-%m-%d %H:%M:%S UTC")",
            "build_timestamp": "$(date -u +%s)",
            "git_sha": "${{ github.sha }}",
            "workflow_run_id": "${{ github.run_id }}",
            "total_lists": ${{ steps.stats.outputs.total_lists }},
            "total_repos": ${{ steps.stats.outputs.total_repos }},
            "total_readmes": ${{ steps.stats.outputs.total_readmes }},
            "size_mb": ${{ steps.stats.outputs.size_mb }},
            "node_version": "$(node --version)",
            "index_mode": "${{ github.event.inputs.index_mode || 'full' }}"
          }
          EOF

          echo "Artifact prepared: awesome-${BUILD_DATE}.db"
          ls -lh artifacts/

      - name: Upload database artifact
        uses: actions/upload-artifact@v4
        with:
          name: awesome-database-${{ github.run_id }}
          path: |
            artifacts/awesome-*.db
            artifacts/metadata.json
          retention-days: 90
          compression-level: 9

      - name: Create build summary
        run: |
          cat >> $GITHUB_STEP_SUMMARY <<EOF
          # 🎉 Awesome Database Build Complete

          ## 📊 Statistics

          | Metric | Value |
          |--------|-------|
          | 📚 Total Lists | ${{ steps.stats.outputs.total_lists }} |
          | 📦 Total Repositories | ${{ steps.stats.outputs.total_repos }} |
          | 📖 Total READMEs | ${{ steps.stats.outputs.total_readmes }} |
          | 💾 Database Size | ${{ steps.stats.outputs.size_mb }} MB |

          ## ⏱️ Build Information

          - **Started:** ${{ steps.build.outputs.start_time }}
          - **Completed:** ${{ steps.build.outputs.end_time }}
          - **Workflow Run:** [\#${{ github.run_id }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})
          - **Commit:** \`${{ github.sha }}\`
          - **Index Mode:** ${{ github.event.inputs.index_mode || 'full' }}

          ## 📥 Download Instructions

          \`\`\`bash
          # Using GitHub CLI
          gh run download ${{ github.run_id }} -n awesome-database-${{ github.run_id }}

          # Or using our helper script
          curl -sSL https://raw.githubusercontent.com/${{ github.repository }}/main/scripts/download-db.sh | bash
          \`\`\`

          ## 🔗 Artifact Link

          [Download Database Artifact](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})
          EOF

      - name: Notify on failure
        if: failure()
        run: |
          cat >> $GITHUB_STEP_SUMMARY <<EOF
          # ❌ Database Build Failed

          The automated database build encountered an error.

          **Workflow Run:** [\#${{ github.run_id }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})

          Please check the logs for details.
          EOF