name: Check Existing Artifact
on:
  workflow_call:
    inputs:
      env_json:
        required: true
        type: string
    secrets:
      GITEA_TOKEN:
        required: true
    outputs:
      artifact_exists:
        value: ${{ jobs.check.outputs.artifact_exists }}
      version:
        value: ${{ jobs.check.outputs.version }}

env:
  GITEA_API_URL: ${{ fromJson(inputs.env_json).GITEA_API_URL }}
  GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}

jobs:
  check:
    runs-on: ubuntu-latest
    outputs:
      artifact_exists: ${{ steps.set-outputs.outputs.artifact_exists }}
      version: ${{ steps.set-outputs.outputs.version }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/checkout@v4
        with:
          repository: niko/gitea-ci-library
          path: .ci

      - name: Set Gitea status to PENDING
        run: |
          echo "===== gitea-ci-library - Check existing artifact | begin ====="
          bash .ci/scripts/report-status.sh pending "Checking version..." ci-check

      - name: Check existing artifact and calculate version
        run: |
          RAW_VERSION=$(jq -r '.version' package.json)
          BASE_VERSION=$(echo "$RAW_VERSION" | cut -d'.' -f1-2)
          echo "gitea-ci-library - Tunnistettu Major.Minor versio: $BASE_VERSION"

          TAGS_JSON=$(curl -s -f -H "Authorization: token $GITEA_TOKEN" \
            "${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/tags")

          TAG=$(echo "$TAGS_JSON" | jq -r 'if type == "array" then .[] | select(.commit.sha == "${{ github.sha }}") | .name else empty end' | head -1)

          mkdir -p /tmp/build-ctx

          if [ -n "$TAG" ]; then
            echo "ARTIFACT_EXISTS=true" > /tmp/build-ctx/build.env
            echo "NEXT_VERSION=$TAG" >> /tmp/build-ctx/build.env
            echo "gitea-ci-library - Artefakti löytyi jo tagilla: $TAG."
          else
            echo "ARTIFACT_EXISTS=false" > /tmp/build-ctx/build.env

            HIGHEST_PATCH=$(echo "$TAGS_JSON" | jq -r --arg bv "$BASE_VERSION." '
              if type == "array" then .[] | .name | select(startswith($bv)) | sub($bv; "") | tonumber else empty end' | sort -rn | head -1)

            if [ -z "$HIGHEST_PATCH" ]; then NEXT_PATCH=0; else NEXT_PATCH=$((HIGHEST_PATCH + 1)); fi
            FULL_VERSION="${BASE_VERSION}.${NEXT_PATCH}"

            echo "NEXT_VERSION=$FULL_VERSION" >> /tmp/build-ctx/build.env
            echo "gitea-ci-library - Uusi vapaa versio: $FULL_VERSION"
          fi

      - name: Set job outputs
        id: set-outputs
        run: |
          source /tmp/build-ctx/build.env
          echo "artifact_exists=$ARTIFACT_EXISTS" >> "$GITHUB_OUTPUT"
          echo "version=$NEXT_VERSION" >> "$GITHUB_OUTPUT"

      - name: Set Gitea status to SUCCESS
        if: success()
        run: |
          source /tmp/build-ctx/build.env
          if [ "${ARTIFACT_EXISTS}" = "true" ]; then
            bash .ci/scripts/report-status.sh success "Skip build: version $NEXT_VERSION exists" ci-check
          else
            bash .ci/scripts/report-status.sh success "Build version $NEXT_VERSION required" ci-check
          fi

      - name: Set Gitea status to FAILURE
        if: failure()
        run: bash .ci/scripts/report-status.sh failure "Check version FAILED" ci-check