name: Release Plugin

# Reusable Workflow für WordPress-Plugin-Releases.
# Aufruf aus einem Plugin-Repo via:
#
#   jobs:
#     release:
#       uses: ideenfabrik/idf-ci/.gitea/workflows/release-plugin.yml@v1
#       with:
#         slug: idf-<plugin-slug>
#       secrets: inherit
#
# Erwartete Struktur im aufrufenden Repo:
#   - <slug>.php (Plugin-Haupt-PHP mit "Version: X.Y.Z" im Header)
#   - Irgendwo in einer PHP-Datei: define('IDF_<UPPER>_VERSION', 'X.Y.Z')
#   - readme.txt im Repo-Root mit:
#       Stable tag: X.Y.Z
#       == Changelog ==
#       = X.Y.Z =
#       * ...
#
# Trigger im aufrufenden Repo: push eines Tags der Form v<MAJOR>.<MINOR>.<PATCH>.

on:
  workflow_call:
    inputs:
      slug:
        description: "Plugin-Slug (Top-Level-Ordner im ZIP, Dateiname-Basis)"
        required: true
        type: string
      main_file:
        description: "Plugin-Haupt-PHP (default: <slug>.php)"
        required: false
        type: string
        default: ""
      version_constant:
        description: "Name der PHP-Versions-Konstante (default: IDF_<UPPER_SLUG_OHNE_IDF_>_VERSION)"
        required: false
        type: string
        default: ""

jobs:
  release:
    runs-on: ubuntu-latest

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

      - name: Variablen ableiten
        id: vars
        shell: bash
        run: |
          set -euo pipefail
          SLUG="${{ inputs.slug }}"
          TAG="${GITHUB_REF_NAME}"
          VERSION="${TAG#v}"
          MAIN_FILE="${{ inputs.main_file }}"
          [[ -z "$MAIN_FILE" ]] && MAIN_FILE="${SLUG}.php"
          CONST="${{ inputs.version_constant }}"
          if [[ -z "$CONST" ]]; then
            base="${SLUG#idf-}"
            base_upper="$(echo "$base" | tr '[:lower:]-' '[:upper:]_')"
            CONST="IDF_${base_upper}_VERSION"
          fi
          ZIPNAME="${SLUG}_v${VERSION}.zip"
          {
            echo "slug=$SLUG"
            echo "tag=$TAG"
            echo "version=$VERSION"
            echo "main_file=$MAIN_FILE"
            echo "const=$CONST"
            echo "zipname=$ZIPNAME"
          } >> "$GITHUB_OUTPUT"
          echo "Ermittelt: slug=$SLUG tag=$TAG version=$VERSION main_file=$MAIN_FILE const=$CONST"

      - name: Pre-Flight — Tag-Format
        shell: bash
        run: |
          set -euo pipefail
          TAG="${{ steps.vars.outputs.tag }}"
          if [[ ! "$TAG" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "::error::Tag '$TAG' entspricht nicht vMAJOR.MINOR.PATCH"
            exit 1
          fi
          echo "Tag-Format OK: $TAG"

      - name: Pre-Flight — readme.txt vorhanden
        shell: bash
        run: |
          set -euo pipefail
          if [[ ! -f readme.txt ]]; then
            echo "::error::readme.txt fehlt im Repo-Root (Pflichtdatei, siehe idf-ci README)"
            exit 1
          fi
          echo "readme.txt OK"

      - name: Pre-Flight — Plugin-Header-Version
        shell: bash
        run: |
          set -euo pipefail
          MAIN="${{ steps.vars.outputs.main_file }}"
          VERSION="${{ steps.vars.outputs.version }}"
          if [[ ! -f "$MAIN" ]]; then
            echo "::error::Plugin-Haupt-PHP nicht gefunden: $MAIN"
            exit 1
          fi
          HEADER_VERSION="$(grep -iE '^[[:space:]]*\*?[[:space:]]*Version:[[:space:]]*' "$MAIN" | head -n1 | sed -E 's/^[^0-9]*([0-9]+\.[0-9]+\.[0-9]+).*$/\1/')"
          if [[ -z "$HEADER_VERSION" ]]; then
            echo "::error::Konnte 'Version: …' Zeile in $MAIN nicht finden"
            exit 1
          fi
          if [[ "$HEADER_VERSION" != "$VERSION" ]]; then
            echo "::error::Plugin-Header-Version '$HEADER_VERSION' != Tag '$VERSION'"
            exit 1
          fi
          echo "Header-Version OK: $HEADER_VERSION"

      - name: Pre-Flight — Versions-Konstante
        shell: bash
        run: |
          set -euo pipefail
          CONST="${{ steps.vars.outputs.const }}"
          VERSION="${{ steps.vars.outputs.version }}"
          CONST_LINE="$(grep -rhE "define[[:space:]]*\([[:space:]]*['\"]${CONST}['\"]" --include='*.php' . | head -n1 || true)"
          if [[ -z "$CONST_LINE" ]]; then
            echo "::error::Versions-Konstante $CONST nicht in PHP-Dateien gefunden"
            exit 1
          fi
          CONST_VERSION="$(echo "$CONST_LINE" | sed -E "s/.*['\"]([0-9]+\.[0-9]+\.[0-9]+)['\"].*/\1/")"
          if [[ "$CONST_VERSION" != "$VERSION" ]]; then
            echo "::error::Konstante $CONST='$CONST_VERSION' != Tag '$VERSION'"
            exit 1
          fi
          echo "Konstante OK: $CONST=$CONST_VERSION"

      - name: Pre-Flight — readme.txt Stable tag
        shell: bash
        run: |
          set -euo pipefail
          VERSION="${{ steps.vars.outputs.version }}"
          STABLE_TAG="$(grep -iE '^[[:space:]]*Stable tag:[[:space:]]*' readme.txt | head -n1 | sed -E 's/^[^0-9]*([0-9]+\.[0-9]+\.[0-9]+).*$/\1/')"
          if [[ -z "$STABLE_TAG" ]]; then
            echo "::error::Konnte 'Stable tag: …' Zeile in readme.txt nicht finden"
            exit 1
          fi
          if [[ "$STABLE_TAG" != "$VERSION" ]]; then
            echo "::error::readme.txt Stable tag '$STABLE_TAG' != Tag '$VERSION'"
            exit 1
          fi
          echo "Stable tag OK: $STABLE_TAG"

      - name: Changelog-Block aus readme.txt extrahieren
        id: changelog
        shell: bash
        env:
          VERSION: ${{ steps.vars.outputs.version }}
        run: |
          set -euo pipefail
          BLOCK="$(python3 - <<'PY'
          import re, sys, os
          version = os.environ["VERSION"]
          with open("readme.txt", encoding="utf-8") as f:
              content = f.read()
          # 1) "== Changelog ==" Abschnitt finden (bis zum nächsten "==…==" oder Dateiende)
          section_pat = re.compile(
              r"^==\s*Changelog\s*==\s*$\n(.*?)(?=^==[^=\n]+==\s*$|\Z)",
              re.MULTILINE | re.DOTALL | re.IGNORECASE,
          )
          section_m = section_pat.search(content)
          if not section_m:
              sys.stderr.write("'== Changelog ==' section not found in readme.txt\n")
              sys.exit(1)
          section = section_m.group(1)
          # 2) Block "= <version> =" bis zum nächsten "= x.y.z =" oder Abschnittsende
          block_pat = re.compile(
              r"^=\s*" + re.escape(version) + r"\s*=\s*$\n(.*?)(?=^=\s*\d+\.\d+\.\d+\s*=\s*$|\Z)",
              re.MULTILINE | re.DOTALL,
          )
          block_m = block_pat.search(section)
          if not block_m:
              sys.stderr.write(f"No block '= {version} =' found in == Changelog == section\n")
              sys.exit(1)
          print(block_m.group(1).strip())
          PY
          )" || { echo "::error::Kein Changelog-Block für $VERSION in readme.txt (Abschnitt '== Changelog ==')"; exit 1; }
          {
            echo "body<<CHANGELOG_EOF"
            echo "$BLOCK"
            echo "CHANGELOG_EOF"
          } >> "$GITHUB_OUTPUT"
          echo "Changelog-Block extrahiert (${#BLOCK} Zeichen)."

      - name: ZIP bauen
        id: zip
        shell: bash
        run: |
          set -euo pipefail
          SLUG="${{ steps.vars.outputs.slug }}"
          ZIPNAME="${{ steps.vars.outputs.zipname }}"
          WORK="/tmp/build"
          rm -rf "$WORK"
          mkdir -p "$WORK/$SLUG"
          rsync -a \
            --exclude='.git' \
            --exclude='.gitea' \
            --exclude='.github' \
            --exclude='.gitignore' \
            --exclude='.gitattributes' \
            --exclude='.editorconfig' \
            --exclude='.vscode' \
            --exclude='.idea' \
            --exclude='.DS_Store' \
            --exclude='node_modules' \
            --exclude='tests' \
            --exclude='phpunit.xml*' \
            --exclude='phpcs.xml*' \
            --exclude='CHANGELOG.md' \
            --exclude='*.zip' \
            ./ "$WORK/$SLUG/"
          # readme.txt muss im Build enthalten sein (WP-Standard)
          if [[ ! -f "$WORK/$SLUG/readme.txt" ]]; then
            echo "::error::readme.txt fehlt im gebauten Plugin-Ordner"
            exit 1
          fi
          (cd "$WORK" && zip -qr "/tmp/$ZIPNAME" "$SLUG")
          ls -la "/tmp/$ZIPNAME"
          # Validierung: Top-Level im ZIP ist genau $SLUG/
          TOP_DIRS="$(unzip -l "/tmp/$ZIPNAME" | awk 'NR>3 && NF>=4 {print $4}' | grep -E '^[^/]+/' | awk -F/ '{print $1}' | sort -u)"
          if [[ "$TOP_DIRS" != "$SLUG" ]]; then
            echo "::error::Unerwartete Top-Level-Ordner im ZIP: '$TOP_DIRS' (erwartet: '$SLUG')"
            exit 1
          fi
          echo "ZIP-Top-Level OK: $SLUG/"
          echo "zippath=/tmp/$ZIPNAME" >> "$GITHUB_OUTPUT"

      - name: Gitea-Release anlegen und Asset anhängen
        shell: bash
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN || github.token }}
          TAG: ${{ steps.vars.outputs.tag }}
          ZIPPATH: ${{ steps.zip.outputs.zippath }}
          ZIPNAME: ${{ steps.vars.outputs.zipname }}
          BODY: ${{ steps.changelog.outputs.body }}
        run: |
          set -euo pipefail
          SERVER="${GITHUB_SERVER_URL:-https://git.ihre-ideenfabrik.de}"
          REPO="${GITHUB_REPOSITORY}"
          PAYLOAD="$(jq -n \
            --arg tag "$TAG" \
            --arg name "$TAG" \
            --arg body "$BODY" \
            '{tag_name:$tag, name:$name, body:$body, draft:false, prerelease:false}')"
          RESP="$(curl -sSf \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            -X POST \
            -d "$PAYLOAD" \
            "$SERVER/api/v1/repos/$REPO/releases")"
          REL_ID="$(echo "$RESP" | jq -r '.id')"
          if [[ -z "$REL_ID" || "$REL_ID" == "null" ]]; then
            echo "::error::Release-Anlage fehlgeschlagen: $RESP"
            exit 1
          fi
          echo "Release angelegt: id=$REL_ID"
          curl -sSf \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/octet-stream" \
            --data-binary "@$ZIPPATH" \
            -X POST \
            "$SERVER/api/v1/repos/$REPO/releases/$REL_ID/assets?name=$ZIPNAME" \
            > /dev/null
          echo "Asset hochgeladen: $ZIPNAME"