name: Build and Release

on:
  push:
    branches:
      - main
  workflow_dispatch:
    inputs:
      release_type:
        description: 'Override release type (auto-detected by default)'
        required: false
        default: 'auto'
        type: choice
        options:
          - auto
          - patch
          - full

permissions:
  contents: write

jobs:
  build-and-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check if version already released
        id: version-check
        env:
          GITEA_TOKEN: ${{ secrets.DEST_GITEA_TOKEN }}
        run: |
          VERSION=$(grep '"version"' package.json | head -1 | sed 's/.*"version": *"\([^"]*\)".*/\1/')
          TAG="v$VERSION"
          echo "VERSION=$VERSION" >> "$GITHUB_OUTPUT"
          echo "TAG=$TAG" >> "$GITHUB_OUTPUT"

          STATUS=$(curl -s -o /dev/null -w "%{http_code}" \
            "https://gitea.crjlab.net/api/v1/repos/bigjakk/Krunker-Civilian-Client-Test/releases/tags/$TAG" \
            -H "Authorization: token $GITEA_TOKEN")

          if [ "$STATUS" = "200" ]; then
            echo "Release $TAG already exists, skipping build"
            echo "SKIP=true" >> "$GITHUB_OUTPUT"
          else
            echo "No release for $TAG, proceeding with build"
            echo "SKIP=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Detect release type
        if: steps.version-check.outputs.SKIP == 'false'
        id: release-type
        run: |
          OVERRIDE="${{ github.event.inputs.release_type || 'auto' }}"

          if [ "$OVERRIDE" != "auto" ]; then
            echo "Release type overridden to: $OVERRIDE"
            echo "TYPE=$OVERRIDE" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          # Auto-detect: find what changed since the last release tag
          PREV_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || true)

          if [ -z "$PREV_TAG" ]; then
            echo "No previous tag found — defaulting to full build"
            echo "TYPE=full" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          echo "Comparing changes since $PREV_TAG"
          CHANGED=$(git diff --name-only "$PREV_TAG"..HEAD)
          echo "$CHANGED"

          # Files that require a full (installer-only) release
          FULL_TRIGGERS="electron-builder.yml|scripts/download-electron.js"

          if echo "$CHANGED" | grep -qE "^($FULL_TRIGGERS)$"; then
            echo "Full build trigger detected in changed files"
            echo "TYPE=full" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          # Check if package.json deps changed (not just version field)
          if echo "$CHANGED" | grep -q "^package.json$"; then
            DEP_DIFF=$(git diff "$PREV_TAG"..HEAD -- package.json \
              | grep -E '^\+' | grep -vE '^\+\+\+' \
              | grep -E '"(dependencies|devDependencies|electron|electron-nightly)"' || true)
            if [ -n "$DEP_DIFF" ]; then
              echo "Dependency changes detected in package.json"
              echo "TYPE=full" >> "$GITHUB_OUTPUT"
              exit 0
            fi
          fi

          echo "Only source changes detected — patch release"
          echo "TYPE=patch" >> "$GITHUB_OUTPUT"

      - name: Setup Node.js
        if: steps.version-check.outputs.SKIP == 'false'
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Install system dependencies
        if: steps.version-check.outputs.SKIP == 'false'
        run: |
          sudo dpkg --add-architecture i386
          sudo apt-get update -qq
          sudo apt-get install -y --no-install-recommends \
            wine wine32 wine64 \
            libnss3 libatk1.0-0 libatk-bridge2.0-0 libcups2t64 \
            libdrm2 libxkbcommon0 libxcomposite1 libxdamage1 \
            libxfixes3 libxrandr2 libgbm1 libpango-1.0-0 \
            libcairo2 libasound2t64 libgtk-3-0
          WINEDEBUG=-all wine wineboot --init || true

      - name: Install dependencies
        if: steps.version-check.outputs.SKIP == 'false'
        run: npm ci --legacy-peer-deps

      - name: Build source
        if: steps.version-check.outputs.SKIP == 'false'
        run: npm run build

      - name: Build Windows distributables
        if: steps.version-check.outputs.SKIP == 'false'
        env:
          WINEDEBUG: "-all"
        run: npx electron-builder --win -c.electronDist=node_modules/electron/dist-win --publish never

      - name: Build Linux distributables
        if: steps.version-check.outputs.SKIP == 'false'
        run: npx electron-builder --linux -c.electronDist=node_modules/electron/dist-linux --publish never

      - name: Build asar for patch updates
        if: steps.version-check.outputs.SKIP == 'false' && steps.release-type.outputs.TYPE == 'patch'
        run: npm run build:asar

      - name: Report build sizes
        if: steps.version-check.outputs.SKIP == 'false'
        run: |
          echo "=== Release type: ${{ steps.release-type.outputs.TYPE }} ==="
          ls -lh out/*.exe out/*.AppImage out/*.deb 2>/dev/null || true
          ls -lh out/asar/* 2>/dev/null || true

      - name: Generate release notes
        if: steps.version-check.outputs.SKIP == 'false'
        env:
          GITEA_TOKEN: ${{ secrets.DEST_GITEA_TOKEN }}
        run: |
          chmod +x scripts/generate-release-notes.sh

          PREV_SHA=$(curl -s "https://gitea.crjlab.net/api/v1/repos/bigjakk/Krunker-Civilian-Client-Test/releases?limit=1" \
            -H "Authorization: token $GITEA_TOKEN" \
            | jq -r '.[0].target_commitish // empty' 2>/dev/null || true)

          echo "Previous release SHA: ${PREV_SHA:-none}"
          scripts/generate-release-notes.sh "${{ steps.version-check.outputs.TAG }}" "$PREV_SHA" > /tmp/release-notes.md
          echo "--- Generated release notes ---"
          cat /tmp/release-notes.md

      - name: Create release and upload assets
        if: steps.version-check.outputs.SKIP == 'false'
        env:
          GITEA_TOKEN: ${{ secrets.DEST_GITEA_TOKEN }}
          TAG: ${{ steps.version-check.outputs.TAG }}
          RELEASE_TYPE: ${{ steps.release-type.outputs.TYPE }}
        run: |
          GITEA_BASE="https://gitea.crjlab.net"
          REPO="bigjakk/Krunker-Civilian-Client-Test"

          # Create tag
          curl -s -X POST "$GITEA_BASE/api/v1/repos/$REPO/tags" \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\": \"$TAG\", \"message\": \"$TAG\", \"target\": \"$GITHUB_SHA\"}"

          # Read release notes
          NOTES=$(cat /tmp/release-notes.md)
          BODY=$(echo "$NOTES" | python3 -c 'import sys,json; print(json.dumps(sys.stdin.read()))')

          # Create release
          RESPONSE=$(curl -s -X POST "$GITEA_BASE/api/v1/repos/$REPO/releases" \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            -d "{
              \"tag_name\": \"$TAG\",
              \"name\": \"$TAG\",
              \"body\": $BODY,
              \"draft\": false,
              \"prerelease\": false
            }")

          RELEASE_ID=$(echo "$RESPONSE" | jq -r '.id')
          echo "Created release ID: $RELEASE_ID"

          if [ "$RELEASE_ID" = "null" ] || [ -z "$RELEASE_ID" ]; then
            echo "Failed to create release:"
            echo "$RESPONSE"
            exit 1
          fi

          # Upload asar + checksums (patch releases only — signals client to use fast path)
          if [ "$RELEASE_TYPE" = "patch" ]; then
            for file in out/asar/app.asar out/asar/checksums.sha256; do
              [ -f "$file" ] || continue
              FILENAME=$(basename "$file")
              echo "Uploading: $FILENAME ($(du -h "$file" | cut -f1))"
              curl -s -X POST \
                "$GITEA_BASE/api/v1/repos/$REPO/releases/$RELEASE_ID/assets?name=$FILENAME" \
                -H "Authorization: token $GITEA_TOKEN" \
                -F "attachment=@$file" \
                | jq -r '"  -> \(.name) (\(.size) bytes)"'
            done
          else
            echo "Full release — skipping asar upload (forces installer update)"
          fi

          # Upload installers (always — for new users and major updates)
          for file in out/*.exe out/*.AppImage out/*.deb; do
            [ -f "$file" ] || continue
            FILENAME=$(basename "$file")
            SAFE_NAME=$(echo "$FILENAME" | tr ' ' '_')
            echo "Uploading: $SAFE_NAME ($(du -h "$file" | cut -f1))"
            curl -s -X POST \
              "$GITEA_BASE/api/v1/repos/$REPO/releases/$RELEASE_ID/assets?name=$SAFE_NAME" \
              -H "Authorization: token $GITEA_TOKEN" \
              -F "attachment=@$file" \
              | jq -r '"  -> \(.name) (\(.size) bytes)"'
          done

          echo "All assets uploaded"

      - name: Prune old releases
        if: steps.version-check.outputs.SKIP == 'false'
        env:
          GITEA_TOKEN: ${{ secrets.DEST_GITEA_TOKEN }}
          KEEP: 5
        run: |
          GITEA_BASE="https://gitea.crjlab.net"
          REPO="bigjakk/Krunker-Civilian-Client-Test"
          echo "=== Pruning $REPO (keeping last $KEEP) ==="
          RELEASES=$(curl -s "$GITEA_BASE/api/v1/repos/$REPO/releases?limit=50" \
            -H "Authorization: token $GITEA_TOKEN")

          DELETE_IDS=$(echo "$RELEASES" | jq -r "sort_by(.created_at) | reverse | .[$KEEP:][] | .id")

          for ID in $DELETE_IDS; do
            TAG_NAME=$(echo "$RELEASES" | jq -r ".[] | select(.id == $ID) | .tag_name")
            echo "Deleting release $TAG_NAME (id=$ID)"
            curl -s -X DELETE "$GITEA_BASE/api/v1/repos/$REPO/releases/$ID" \
              -H "Authorization: token $GITEA_TOKEN"
            curl -s -X DELETE "$GITEA_BASE/api/v1/repos/$REPO/tags/$TAG_NAME" \
              -H "Authorization: token $GITEA_TOKEN"
          done
          echo "Prune complete"