name: Sonar
on:
  workflow_run:
    workflows: ["Build/Test"]
    types: [completed]
jobs:
  sonar:
    name: Sonar
    runs-on: ubuntu-latest
    if: github.event.workflow_run.conclusion == 'success'
    permissions:
      checks: write
      contents: read
      actions: read
    steps:
      - uses: LouisBrunner/checks-action@v2.0.0
        if: always()
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          name: Quality Gate
          status: in_progress
          sha: ${{ github.event.workflow_run.head_sha }}
      - uses: actions/checkout@v4
        with:
          repository: ${{ github.event.workflow_run.head_repository.full_name }}
          ref: ${{ github.event.workflow_run.head_branch }}
          fetch-depth: 0
      - name: Download coverage artifacts
        uses: actions/download-artifact@v4
        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"
      - uses: LouisBrunner/checks-action@v2.0.0
        id: fail-quality-gate
        if: steps.sonarqube-quality-gate-check.outputs.quality-gate-status != 'PASSED'
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          name: Quality Gate
          status: completed
          conclusion: failure
          sha: ${{ github.event.workflow_run.head_sha }}
          output: |
            {"summary":"Failed - see https://sonarcloud.io/summary/new_code?id=opencost_opencostl&pullRequest=${{ steps.set-vars.outputs.SONAR_PR_NUM }}","text_description":"Quality Gate failed. Check the [SonarCloud Dashboard](https://sonarcloud.io/dashboard?id=opencost_opencost&pullRequest=${{ steps.set-vars.outputs.SONAR_PR_NUM }}) for more details."}
      - uses: LouisBrunner/checks-action@v2.0.0
        id: pass-quality-gate
        if: steps.sonarqube-quality-gate-check.outputs.quality-gate-status == 'PASSED'
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          name: Quality Gate
          status: completed
          conclusion: success
          sha: ${{ github.event.workflow_run.head_sha }}
          output: |
            {"summary":"Passed","text_description":"Quality Gate passed. Check the [SonarCloud Dashboard](https://sonarcloud.io/dashboard?id=opencost_opencost&pullRequest=${{ steps.set-vars.outputs.SONAR_PR_NUM }}) for more details."}