name: Sonar
on:
  workflow_run:
    workflows: ["Build/Test"]
    types: [completed]

permissions: {}

jobs:
  sonar:
    name: Sonar
    runs-on: ubuntu-latest
    if: github.event.workflow_run.conclusion == 'success'
    permissions:
      statuses: write
      contents: read
      actions: read
    steps:
      - name: Set Quality Gate status (pending)
        if: always()
        uses: guibranco/github-status-action-v2@v1.1.14
        with:
          authToken: ${{ secrets.GITHUB_TOKEN }}
          state: 'pending'
          context: 'Quality Gate'
          description: 'Quality Gate check in progress...'
          sha: ${{ github.event.workflow_run.head_sha }}
          target_url: 'https://sonarcloud.io/dashboard?id=opencost_opencost'
      - name: Checkout upstream repository
        uses: actions/checkout@v6.0.2
        with:
          repository: opencost/opencost
          ref: develop
          fetch-depth: 0
      - name: Fetch PR branch from fork
        if: github.event.workflow_run.head_branch != 'develop' || github.event.workflow_run.head_repository.full_name != 'opencost/opencost'
        env:
          HEAD_REPO_FULL_NAME: ${{ github.event.workflow_run.head_repository.full_name }}
          HEAD_BRANCH: ${{ github.event.workflow_run.head_branch }}
          HEAD_SHA: ${{ github.event.workflow_run.head_sha }}
        run: |
          git remote add fork "https://github.com/$HEAD_REPO_FULL_NAME.git"
          if [ "$HEAD_BRANCH" = "develop" ]; then
            # For fork's develop branch, fetch and checkout by SHA to avoid refspec conflict
            git fetch fork "$HEAD_BRANCH"
            git checkout "$HEAD_SHA"
          else
            # For feature branches, fetch and checkout normally
            git fetch fork "$HEAD_BRANCH:$HEAD_BRANCH"
            git checkout "$HEAD_BRANCH"
          fi
      - name: Checkout develop branch at specific SHA
        if: github.event.workflow_run.head_branch == 'develop' && github.event.workflow_run.head_repository.full_name == 'opencost/opencost'
        run: |
          git checkout ${{ github.event.workflow_run.head_sha }}
      - name: Download coverage artifacts
        uses: actions/download-artifact@v8
        with:
          name: code-coverage
          run-id: ${{ github.event.workflow_run.id }}
          github-token: ${{ github.token }}
          path: pr-artifact
      - name: Validate Coverage Vars
        id: validate-vars
        if: github.event.workflow_run.head_branch != 'develop'
        shell: bash
        run: | 
          # check the PR number
          pr_content=$(cat pr-artifact/pr_num.txt | tr -d '\n' | tr -d ' ')

          # Check if the content matches a single number
          if [[ "$pr_content" =~ ^[0-9]+$ ]]; then
            echo "The file 'pr_num.txt' contains a single number: $pr_content"
          else
            echo "The file 'pr_num.txt' does not contain a single number."
            exit 1
          fi

          base_content=$(cat pr-artifact/base.txt | tr -d '\n' | tr -d ' ')
          if git check-ref-format --allow-onelevel "$base_content"; then
            echo "The file 'base.txt' contains a valid git ref: $base_content"
          else
            echo "The file 'base.txt' does not contain a valid git ref: $base_content"
            exit 1
          fi

          head_content=$(cat pr-artifact/head.txt | tr -d '\n' | tr -d ' ')
          if git check-ref-format --allow-onelevel "$head_content"; then
            echo "The file 'head.txt' contains a valid git ref: $head_content"
          else
            echo "The file 'head.txt' does not contain a valid git ref: $head_content"
            exit 1
          fi

      - name: set vars 
        id: set-vars
        run: | 
          echo "SONAR_PR_NUM=$(cat pr-artifact/pr_num.txt | tr -d '\n' | tr -d ' ')" >> $GITHUB_OUTPUT
          echo "SONAR_BASE=$(cat pr-artifact/base.txt | tr -d '\n' | tr -d ' ')" >> $GITHUB_OUTPUT
          echo "SONAR_HEAD=$(cat pr-artifact/head.txt | tr -d '\n' | tr -d ' ')" >> $GITHUB_OUTPUT
          # move coverage file to root where sonar properties file is expecting it
          cp pr-artifact/coverage.out coverage.out
      # on develop branch, only run a baseline scan
      - name: SonarCloud Scan (Baseline)
        uses: sonarsource/sonarcloud-github-action@master
        if: github.event.workflow_run.head_branch == 'develop'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
        with:
          args: >
            -Dsonar.scm.revision=${{ github.event.workflow_run.head_sha }}
            -Dsonar.projectKey=opencost_opencost
            -Dsonar.organization=opencost
            -Dsonar.branch.name=develop
      - name: SonarCloud Scan (PR)
        uses: sonarsource/sonarcloud-github-action@master
        if: github.event.workflow_run.head_branch != 'develop'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
        with:
          args: >
            -Dsonar.scm.revision=${{ github.event.workflow_run.head_sha }}
            -Dsonar.pullrequest.key=${{ steps.set-vars.outputs.SONAR_PR_NUM }}
            -Dsonar.pullrequest.branch=${{ steps.set-vars.outputs.SONAR_HEAD }}
            -Dsonar.pullrequest.base=${{ steps.set-vars.outputs.SONAR_BASE }}
            -Dsonar.projectKey=opencost_opencost
            -Dsonar.organization=opencost
      - name: SonarQube Quality Gate check
        id: sonarqube-quality-gate-check
        continue-on-error: true
        uses: sonarsource/sonarqube-quality-gate-action@master
        # fail step after specific time.
        timeout-minutes: 5
        env:
             SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
             SONAR_HOST_URL: "https://sonarcloud.io"
      - name: Set Quality Gate status (failed - PR)
        id: fail-quality-gate-pr
        if: steps.sonarqube-quality-gate-check.outputs.quality-gate-status != 'PASSED' && steps.set-vars.outputs.SONAR_PR_NUM != ''
        uses: guibranco/github-status-action-v2@v1.1.14
        with:
          authToken: ${{ secrets.GITHUB_TOKEN }}
          state: 'failure'
          context: 'Quality Gate'
          description: 'Quality Gate failed. Check the SonarCloud Dashboard for PR #${{ steps.set-vars.outputs.SONAR_PR_NUM }}'
          sha: ${{ github.event.workflow_run.head_sha }}
          target_url: 'https://sonarcloud.io/dashboard?id=opencost_opencost&pullRequest=${{ steps.set-vars.outputs.SONAR_PR_NUM }}'
      - name: Set Quality Gate status (failed - develop)
        id: fail-quality-gate-develop
        if: steps.sonarqube-quality-gate-check.outputs.quality-gate-status != 'PASSED' && steps.set-vars.outputs.SONAR_PR_NUM == ''
        uses: guibranco/github-status-action-v2@v1.1.14
        with:
          authToken: ${{ secrets.GITHUB_TOKEN }}
          state: 'failure'
          context: 'Quality Gate'
          description: 'Quality Gate failed. Check the SonarCloud Dashboard for more details.'
          sha: ${{ github.event.workflow_run.head_sha }}
          target_url: 'https://sonarcloud.io/dashboard?id=opencost_opencost'
      - name: Set Quality Gate status (passed - PR)
        id: pass-quality-gate-pr
        if: steps.sonarqube-quality-gate-check.outputs.quality-gate-status == 'PASSED' && steps.set-vars.outputs.SONAR_PR_NUM != ''
        uses: guibranco/github-status-action-v2@v1.1.14
        with:
          authToken: ${{ secrets.GITHUB_TOKEN }}
          state: 'success'
          context: 'Quality Gate'
          description: 'Quality Gate passed. Check the SonarCloud Dashboard for PR #${{ steps.set-vars.outputs.SONAR_PR_NUM }}'
          sha: ${{ github.event.workflow_run.head_sha }}
          target_url: 'https://sonarcloud.io/dashboard?id=opencost_opencost&pullRequest=${{ steps.set-vars.outputs.SONAR_PR_NUM }}'
      - name: Set Quality Gate status (passed - develop)
        id: pass-quality-gate-develop
        if: steps.sonarqube-quality-gate-check.outputs.quality-gate-status == 'PASSED' && steps.set-vars.outputs.SONAR_PR_NUM == ''
        uses: guibranco/github-status-action-v2@v1.1.14
        with:
          authToken: ${{ secrets.GITHUB_TOKEN }}
          state: 'success'
          context: 'Quality Gate'
          description: 'Quality Gate passed. Check the SonarCloud Dashboard for more details.'
          sha: ${{ github.event.workflow_run.head_sha }}
          target_url: 'https://sonarcloud.io/dashboard?id=opencost_opencost'