# Build and publish a release on the Forgejo source-of-truth instance
# with the PostIt Android APK as an attached asset.
#
# Triggered by a push of a git tag. Validates the tag/changelog pair,
# builds the APK using the existing Dockerfile (--target build-env), then
# publishes a Forgejo release via the Forgejo REST API and uploads the
# APK as an asset.
#
# Authentication uses ${{ secrets.GITHUB_TOKEN }} (auto-provided by the
# Forgejo runner, scoped to contents: write for the current repo). A
# dedicated PAT (${{ secrets.RELEASE_TOKEN }}) was the preferred option
# for least-privilege, but creating repo-level secrets is currently
# broken on this Forgejo instance (InsertEncryptedSecret fails with a
# UTF-8 byte-sequence error, probably a text-vs-bytea column type on
# the secret table). Bumping to Forgejo v16 should fix it; until then,
# the runner-provided token keeps the workflow operational.
#
# Why bash + curl, no third-party actions: the runner's docker label
# points at pazof/yavsc-build-env, a Debian image without Node.js. Any
# action like actions/checkout, rasterstate/forgejo-release-action, etc.
# fails with "executable file not found in $PATH". Same constraint as
# .forgejo/workflows/buildAndTest.yml.
#
# This workflow complements .github/workflows/docker-publish-android.yml
# which targets the GitHub mirror; the validate-release logic mirrors
# the GitHub-side job so the two channels stay consistent.
name: Forgejo Release

on:
  push:
    tags:
      - '*'
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag à publier (requis en dispatch, ex. 1.0.6 ou 1.0.7-rc1).'
        required: true
        type: string
      force_unstable:
        description: 'Publier une release avec suffixe (ex. 1.0.0-rc1) malgré le fail-fast par défaut.'
        required: false
        type: boolean
        default: false

permissions:
  contents: write

jobs:
  # Job unique : validation tag/CHANGELOG + build APK + publication
  # via l'API REST Forgejo (pas d'actions tierces Node).
  release:
    runs-on: docker
    steps:
      - name: Clone du repo au tag demandé
        env:
          # En push tag : github.ref_name est le tag.
          # En workflow_dispatch : on lit l'input 'tag'.
          TAG: ${{ github.event_name == 'push' && github.ref_name || inputs.tag }}
          FORCE_UNSTABLE: ${{ inputs.force_unstable || 'false' }}
        run: |
          if [[ -z "$TAG" ]]; then
            echo "::error::No tag provided. In workflow_dispatch, set the 'tag' input."
            exit 1
          fi

          # WORKDIR de l'image (cf. dotnet-android-build-image/Dockerfile).
          cd /src

          # Clone unshallow pour que GitVersion.MsBuild ait l'historique
          # et les tags (sinon MSB3073 sur la cible Android cf. PR #21).
          if [[ ! -d _src/.git ]]; then
            git clone https://forgejo.pschneider.fr/notazof/yavsc.git _src
          fi

          cd _src
          git fetch --tags --force --prune origin
          git checkout "$TAG"

          echo "Checked out at $(git rev-parse HEAD) on $(git describe --tags --always 2>/dev/null || echo unknown)"

      - name: Valider le tag et la section CHANGELOG
        run: |
          cd /src/_src
          TAG="$(git describe --tags --exact-match HEAD 2>/dev/null || git rev-parse --short HEAD)"
          echo "Validating tag $TAG"

          # Parse semver : MAJOR.MINOR.PATCH[-SUFFIX]
          if [[ ! "$TAG" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)(-.*)?$ ]]; then
            echo "::error::Tag '$TAG' does not match MAJOR.MINOR.PATCH[-SUFFIX] format."
            exit 1
          fi

          MAJOR="${BASH_REMATCH[1]}"
          MINOR="${BASH_REMATCH[2]}"
          PATCH="${BASH_REMATCH[3]}"
          SUFFIX="${BASH_REMATCH[4]}"

          # Classification du canal par parité du patch.
          # Patch pair + pas de suffixe -> stable.
          # Patch impair + pas de suffixe -> preview.
          # Suffixe présent -> instable.
          if [[ -n "$SUFFIX" ]]; then
            CHANNEL="unstable"
          elif (( PATCH % 2 == 0 )); then
            CHANNEL="stable"
          else
            CHANNEL="preview"
          fi

          echo "Tag $TAG classifié comme channel=$CHANNEL"

          # Fail-fast sur instable sauf opt-in explicite.
          if [[ "$CHANNEL" == "unstable" && "${FORCE_UNSTABLE:-false}" != "true" ]]; then
            echo "::error::Tag '$TAG' is unstable (suffix '$SUFFIX'). Refusing to publish."
            echo "Set force_unstable=true via workflow_dispatch to override."
            exit 1
          fi

          # Lecture du CHANGELOG.md (doit exister à la racine du repo).
          if [[ ! -f CHANGELOG.md ]]; then
            echo "::error::CHANGELOG.md not found at repo root."
            exit 1
          fi

          # Extraction de la section [TAG]. On cherche la première ligne
          # commençant par '## [' qui contient '[TAG]' (entre '## [' et
          # la prochaine ligne '## [' ou fin de fichier). awk en mode
          # paragraphe suffit et reste POSIX. On garde aussi le titre
          # (ligne `## [TAG] - channel`) pour la vérification du canal.
          BODY=$(awk -v tag="[$TAG]" '
            /^## \[/ {
              if (in_section) exit
              if (index($0, tag) > 0) {
                in_section=1
                print
                next
              }
            }
            in_section { print }
          ' CHANGELOG.md)

          if [[ -z "$BODY" ]]; then
            echo "::error::No section matching '## [$TAG]' found in CHANGELOG.md."
            echo "Add a '## [$TAG] - $CHANNEL' section before tagging."
            exit 1
          fi

          # Vérification cohérence du canal déclaré dans le suffixe.
          # Format attendu : "## [TAG] - stable" / "- preview" / "- unstable".
          # On lit la première ligne du body qui contient le titre.
          TITLE=$(echo "$BODY" | head -1)
          if [[ "$TITLE" != *" - $CHANNEL"* ]]; then
            echo "::error::Section title '$TITLE' must declare suffix '- $CHANNEL' to match tag parity."
            exit 1
          fi

          # Body pour la release : retire la première ligne (titre).
          BODY=$(echo "$BODY" | tail -n +2)

          echo "Section CHANGELOG validée pour [$TAG] - $CHANNEL"

          # Expose channel + body pour les étapes suivantes via $GITHUB_ENV.
          echo "RELEASE_CHANNEL=$CHANNEL" >> "$GITHUB_ENV"
          echo "RELEASE_BODY<<EOF" >> "$GITHUB_ENV"
          echo "$BODY" >> "$GITHUB_ENV"
          echo "EOF" >> "$GITHUB_ENV"
          echo "IS_PRERELEASE=$([ "$CHANNEL" = "stable" ] && echo false || echo true)" >> "$GITHUB_ENV"

      - name: Build des projets .NET (sans docker)
        # L'image runner (pazof/yavsc-build-env) a le SDK .NET 10 + le
        # workload Android, mais PAS le binaire `docker` ni de daemon
        # Docker. On exécute donc les commandes dotnet directement
        # au lieu de passer par `docker build`.
        # Equivalent des stages build-env du Dockerfile (lignes
        # restore + build Yavsc.Org + build Yavsc.Api + build
        # Yavsc.Blogs + build PostIt.Android -r android-arm64).
        run: |
          cd /src/_src
          dotnet restore
          dotnet build src/Yavsc.Org/Yavsc.Org.csproj -c Release --no-restore -clp:ErrorsOnly
          dotnet build src/Yavsc.Api/Yavsc.Api.csproj -c Release --no-restore -clp:ErrorsOnly
          dotnet build src/Yavsc.Blogs/Yavsc.Blogs.csproj -c Release --no-restore -clp:ErrorsOnly
          dotnet build src/PostIt/PostIt.Android/PostIt.Android.csproj \
            -c Release --no-restore -clp:ErrorsOnly -r android-arm64

      - name: Copier l'APK signé vers un emplacement connu
        # Le build Android avec -r android-arm64 produit l'APK dans
        # bin/Release/net10.0-android/android-arm64/. On le copie à
        # la racine du checkout pour que l'étape d'upload le trouve.
        run: |
          cd /src/_src
          APK=src/PostIt/PostIt.Android/bin/Release/net10.0-android/android-arm64/com.CompanyName.PostIt-Signed.apk
          if [[ ! -f "$APK" ]]; then
            echo "::error::APK not found at $APK"
            ls -la src/PostIt/PostIt.Android/bin/Release/net10.0-android/ 2>/dev/null || true
            exit 1
          fi
          cp "$APK" /src/_src/PostIt.Android.apk
          ls -la /src/_src/PostIt.Android.apk

      - name: Publier la release Forgejo via l'API REST
        # Pas d'action tierce (pas de Node dans l'image runner).
        # On parle à l'API Forgejo directement via curl.
        # Docs : https://forgejo.pschneider.fr/api/swagger#/repository/release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_API_URL: ${{ github.api_url }}
          GITHUB_REPOSITORY: ${{ github.repository }}
          TAG: ${{ github.event_name == 'push' && github.ref_name || inputs.tag }}
          RELEASE_BODY: ${{ env.RELEASE_BODY }}
          IS_PRERELEASE: ${{ env.IS_PRERELEASE }}
        run: |
          if [[ -z "$TAG" ]]; then
            echo "::error::No tag resolved for the API call."
            exit 1
          fi

          # Le runner Forgejo expose l'API sur github.api_url (par
          # défaut http://…/api/v1). On retire le suffixe /api/v1 s'il
          # est présent pour dériver la base du serveur, puis on
          # reconstruit l'URL de l'API proprement.
          API_BASE="${GITHUB_API_URL%/}"
          API_BASE="${API_BASE%/api/v1}"

          # 1. Vérifier si la release existe déjà pour ce tag.
          echo "::group::Check existing release for tag $TAG"
          HTTP=$(curl -sS -o /tmp/existing.json -w '%{http_code}' \
            -H "Authorization: token $GITHUB_TOKEN" \
            -H "Accept: application/json" \
            "$API_BASE/api/v1/repos/$GITHUB_REPOSITORY/releases/tags/$TAG")
          echo "GET releases/tags/$TAG -> HTTP $HTTP"
          EXISTING_ID=""
          if [[ "$HTTP" == "200" ]]; then
            EXISTING_ID=$(python3 -c "import json,sys; print(json.load(open('/tmp/existing.json')).get('id',''))" 2>/dev/null || true)
            echo "Existing release id: ${EXISTING_ID:-none}"
          fi
          echo "::endgroup::"

          # 2. Créer ou mettre à jour la release.
          # On utilise python3 pour générer le body JSON proprement
          # (jq n'est pas garanti dans l'image runner).
          if [[ -n "$EXISTING_ID" ]]; then
            echo "::group::Update release id=$EXISTING_ID"
            BODY=$(IS_PRERELEASE="$IS_PRERELEASE" RELEASE_BODY="$RELEASE_BODY" python3 -c 'import json,os; print(json.dumps({"body":os.environ["RELEASE_BODY"],"prerelease":os.environ["IS_PRERELEASE"].lower()=="true"}))')
            HTTP=$(curl -sS -o /tmp/release.json -w '%{http_code}' \
              -X PATCH \
              -H "Authorization: token $GITHUB_TOKEN" \
              -H "Content-Type: application/json" \
              -H "Accept: application/json" \
              --data-binary "$BODY" \
              "$API_BASE/api/v1/repos/$GITHUB_REPOSITORY/releases/$EXISTING_ID")
            echo "PATCH release -> HTTP $HTTP"
            echo "::endgroup::"
          else
            echo "::group::Create release"
            BODY=$(IS_PRERELEASE="$IS_PRERELEASE" RELEASE_BODY="$RELEASE_BODY" TAG="$TAG" python3 -c 'import json,os; print(json.dumps({"tag_name":os.environ["TAG"],"name":os.environ["TAG"],"body":os.environ["RELEASE_BODY"],"prerelease":os.environ["IS_PRERELEASE"].lower()=="true"}))')
            HTTP=$(curl -sS -o /tmp/release.json -w '%{http_code}' \
              -X POST \
              -H "Authorization: token $GITHUB_TOKEN" \
              -H "Content-Type: application/json" \
              -H "Accept: application/json" \
              --data-binary "$BODY" \
              "$API_BASE/api/v1/repos/$GITHUB_REPOSITORY/releases")
            echo "POST release -> HTTP $HTTP"
            echo "::endgroup::"
          fi

          if [[ "$HTTP" != "200" && "$HTTP" != "201" ]]; then
            echo "::error::Release creation/update failed (HTTP $HTTP):"
            cat /tmp/release.json
            exit 1
          fi

          RELEASE_ID=$(python3 -c "import json; print(json.load(open('/tmp/release.json'))['id'])")
          echo "Release id=$RELEASE_ID"

          # 3. Upload l'APK en asset.
          echo "::group::Upload APK asset"
          HTTP=$(curl -sS -o /tmp/asset.json -w '%{http_code}' \
            -X POST \
            -H "Authorization: token $GITHUB_TOKEN" \
            -H "Content-Type: application/octet-stream" \
            -H "Accept: application/json" \
            --data-binary "@/src/_src/PostIt.Android.apk" \
            "?name=PostIt.Android.apk" \
            "$API_BASE/api/v1/repos/$GITHUB_REPOSITORY/releases/$RELEASE_ID/assets")
          echo "POST asset -> HTTP $HTTP"
          echo "::endgroup::"

          if [[ "$HTTP" != "201" ]]; then
            echo "::error::Asset upload failed (HTTP $HTTP):"
            cat /tmp/asset.json
            exit 1
          fi

          echo "Release publiée: $API_BASE/$GITHUB_REPOSITORY/releases/tag/$TAG"