name: Create Release

on:
  push:
    tags:
      - 'v*.*.*'
  workflow_dispatch:
    inputs:
      version:
        description: 'Release version (e.g., v1.21.0)'
        required: true
        type: string
      prerelease:
        description: 'Mark as pre-release'
        required: false
        type: boolean
        default: false

permissions:
  contents: write
  packages: write

jobs:
  validate:
    name: Validate Repository
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.x'

      - name: Validate repository structure
        run: python3 scripts/ci_validate_repo.py

      - name: Validate shell scripts
        run: |
          bash -n scripts/package_mt5.sh
          bash -n scripts/deploy_mt5.sh

  package:
    name: Build Release Package
    needs: validate
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Package MT5 files
        run: bash scripts/package_mt5.sh

      - name: Upload package artifact
        uses: actions/upload-artifact@v4
        with:
          name: Exness_MT5_MQL5
          path: dist/Exness_MT5_MQL5.zip
          retention-days: 90

      - name: Generate checksums
        run: |
          cd dist
          sha256sum Exness_MT5_MQL5.zip > Exness_MT5_MQL5.zip.sha256
          cat Exness_MT5_MQL5.zip.sha256

      - name: Upload checksums
        uses: actions/upload-artifact@v4
        with:
          name: checksums
          path: dist/*.sha256
          retention-days: 90

  build-docker:
    name: Build Docker Images
    needs: validate
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract version
        id: version
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            VERSION="${GITHUB_REF#refs/tags/}"
          fi
          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "Version: ${VERSION}"

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: |
            ghcr.io/${{ github.repository }}:latest
            ghcr.io/${{ github.repository }}:${{ steps.version.outputs.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: linux/amd64,linux/arm64

  create-release:
    name: Create GitHub Release
    needs: [validate, package, build-docker]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Download package artifact
        uses: actions/download-artifact@v4
        with:
          name: Exness_MT5_MQL5
          path: ./dist

      - name: Download checksums
        uses: actions/download-artifact@v4
        with:
          name: checksums
          path: ./dist

      - name: Extract version
        id: version
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            VERSION="${GITHUB_REF#refs/tags/}"
          fi
          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "Version: ${VERSION}"

      - name: Extract changelog
        id: changelog
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          VERSION_NO_V="${VERSION#v}"
          
          # Extract changelog section for this version
          if [ -f CHANGELOG.md ]; then
            awk "/## \[${VERSION_NO_V}\]/,/## \[/{if(/## \[${VERSION_NO_V}\]/)f=1;else if(/## \[/)exit;if(f)print}" CHANGELOG.md > release_notes.md
            
            # If empty, use a default message
            if [ ! -s release_notes.md ]; then
              echo "Release ${VERSION}" > release_notes.md
              echo "" >> release_notes.md
              echo "See [CHANGELOG.md](CHANGELOG.md) for details." >> release_notes.md
            fi
          else
            echo "Release ${VERSION}" > release_notes.md
            echo "" >> release_notes.md
            echo "MQL5 SMC + Trend Breakout Trading System" >> release_notes.md
          fi

      - name: Display release notes
        run: cat release_notes.md

      - name: Create Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: ${{ steps.version.outputs.version }}
          name: Release ${{ steps.version.outputs.version }}
          body_path: release_notes.md
          draft: false
          prerelease: ${{ github.event.inputs.prerelease || false }}
          files: |
            dist/Exness_MT5_MQL5.zip
            dist/Exness_MT5_MQL5.zip.sha256
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Summary
        run: |
          echo "## Release Created Successfully! 🎉" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Version:** ${{ steps.version.outputs.version }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### Release Assets" >> $GITHUB_STEP_SUMMARY
          echo "- MT5 Package: \`Exness_MT5_MQL5.zip\`" >> $GITHUB_STEP_SUMMARY
          echo "- Checksums: \`Exness_MT5_MQL5.zip.sha256\`" >> $GITHUB_STEP_SUMMARY
          echo "- Docker Image: \`ghcr.io/${{ github.repository }}:${{ steps.version.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### Installation" >> $GITHUB_STEP_SUMMARY
          echo "\`\`\`bash" >> $GITHUB_STEP_SUMMARY
          echo "# Download and extract" >> $GITHUB_STEP_SUMMARY
          echo "wget https://github.com/${{ github.repository }}/releases/download/${{ steps.version.outputs.version }}/Exness_MT5_MQL5.zip" >> $GITHUB_STEP_SUMMARY
          echo "unzip Exness_MT5_MQL5.zip -d /path/to/MT5/MQL5" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "# Or use Docker" >> $GITHUB_STEP_SUMMARY
          echo "docker pull ghcr.io/${{ github.repository }}:${{ steps.version.outputs.version }}" >> $GITHUB_STEP_SUMMARY
          echo "\`\`\`" >> $GITHUB_STEP_SUMMARY