name: APK Diff CI

on:
  workflow_call:
    secrets:
      AWS_ACCESS_KEY_GITHUB_CACHE:
        description: Access Key
        required: true
      AWS_SECRET_KEY_GITHUB_CACHE:
        description: Secret Key
        required: true

jobs:
  generate-apk-diff:
    runs-on: self-hosted
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Download Artifact
        id: download
        uses: actions/download-artifact@v3
        with:
          name: app-qa-debug

      - name: Echo Download Path
        run: echo ${{steps.download.outputs.download-path}}

      - name: List Files
        run: |
          ls -R ${{steps.download.outputs.download-path}}

      - name: Set up Python
        uses: actions/setup-python@v2
        with:
          python-version: '3.9'

      - name: Install dependencies
        run: pip install -r .github/actions/s3_file_transfer/dependencies.txt

      - name: Download File
        run: python .github/actions/s3_file_transfer/script.py download ${{ secrets.AWS_ACCESS_KEY_GITHUB_CACHE }} ${{ secrets.AWS_SECRET_KEY_GITHUB_CACHE }} app/build/outputs/apk/dev/debug/latest_build.apk

      - name: Compare APK Size Diff
        id: apk-diff
        run: |
          previous_apk_path="app/build/outputs/apk/dev/debug/latest_build.apk"
          current_apk_path="${{steps.download.outputs.download-path}}/universal_apk/qaDebug/app-qa-debug-universal.apk"

          previous_apk_size=$(stat -c %s $previous_apk_path)
          current_apk_size=$(stat -c %s $current_apk_path)

          size_diff=$((current_apk_size - previous_apk_size))
          echo "::set-output name=size_diff::$size_diff"
          echo "The previous value is $previous_apk_size"
          echo "The latest value is $current_apk_size"

      - name: Check Size Difference
        id: size-diff-check
        run: |
          size_diff=${{ steps.apk-diff.outputs.size_diff }}
          if [[ $size_diff -gt 71680 ]]; then
            echo "::set-output name=job_status::failure"
          elif [[ $size_diff -gt 25600 ]]; then
            echo "::set-output name=job_status::warning"
          else
            echo "::set-output name=job_status::success"
          fi

      - name: Write PR Comment
        uses: actions/github-script@v6
        with:
          script: |
            const sizeDiff = ${{ steps.apk-diff.outputs.size_diff }};
            const sizeDiffKB = Math.round(sizeDiff / 1024);
            const codeOwners = ['@satish-prasad', '@raaj-gopal', '@rahul-bhat', '@shankar-yadav', '@maila-rajanikanth', '@adarsh-s', '@siddiboina-susai', '@amit-kumar', '@jegatheeswaran-m']; // Replace with the desired code owners' usernames
            const codeOwnerTags = codeOwners.join(' '); // Join the code owner usernames with a space
            const additionalInfo = `
            APK size can increase due to various factors. Some common reasons include:

            - Adding external libraries: Before including any external libraries, it's advisable to seek signoff from ${codeOwnerTags}.
            - Using high-resolution vectors: For vector XMLs larger than 48dp, consider using WebP format to optimize file size.
            - Including Lottie JSON files: When adding Lottie animations, it's recommended to prioritize remote Lottie files over local ones.
            - Adding assets/resources: The addition of assets and resources can contribute to APK size growth.
            `;
            let comment;

            if (sizeDiffKB > 70) {
            comment = `### :exclamation: APK Size Exceeded Limit

            The APK size has increased by ${sizeDiffKB} KB bytes compared to the previous version. Please provide the reasons for this increase cc : ${codeOwnerTags}
            ${additionalInfo}`;
            
            github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: comment
            });
            
            } else if (sizeDiffKB > 25) {
            comment = `### :warning: APK Size Warning
            The APK size has increased by ${sizeDiffKB} KB bytes compared to the previous version. Please provide the reasons for this increase cc : ${codeOwnerTags}
            ${additionalInfo}`;
            
            github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: comment
            });
            
            } 

      - name: Fail Job if Size Diff Exceeds 70 KB
        if: ${{ steps.size-diff-check.outputs.job_status == 'failure' }}
        run: exit 1