name: GitHub Page

on:
  push:
    branches: [ master ]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-haskell@v1
      with:
        ghc-version: '8.8'
        cabal-version: 'latest'
    - uses: jorelali/setup-elm@v2
      with:
        elm-version: 0.19.1

    - name: Cache
      uses: actions/cache@v2
      with:
        path: |
          ~/.cabal
          ~/.stack
          ~/.stack-work
          ~/.dist-newstyle
          ~/.ghc
        key: ${{ runner.os }}-${{ hashFiles('**/*.cabal') }}-cache

    - name: Install dependencies
      run: |
        cabal v2-update
        cabal v2-build --enable-coverage --only-dependencies

    - name: Build
      run: |
        cabal v2-build --enable-coverage

    - name: Generate HPC files
      run: |
        set -o xtrace
        for gold in examples/*.golden; do
          cabal v2-exec --enable-coverage -- ghc -package reanimate "${gold%.golden}.hs" --make
          reanimate_datadir=$(pwd) ${gold%.golden} test > /dev/null
        done;
    
    - name: Merge HPC files
      run: hpc sum --union *.tix --output=total.tix

    - name: Report
      run: |
        hpc report --hpcdir $(find dist-newstyle -name 'hpc')/vanilla/mix/*/ total.tix

    - name: Markup
      run: |
        hpc markup --destdir=hpc --hpcdir $(find dist-newstyle -name 'hpc')/vanilla/mix/*/ total.tix

    - name: HPC Badge
      run: |
        COVERAGE=$(cat hpc/hpc_index.html | tr '\n' ' ' | sed "s/.*Program Coverage Total.*>\([0-9]\{1,3\}\)%.*>\([0-9]\{1,3\}\)%.*>\([0-9]\{1,3\}\)%.*/\1/")
        echo "\
          { \"schemaVersion\": 1, \
            \"label\": \"api tests\", \
            \"message\": \"$COVERAGE%\", \
            \"color\": \"success\" \
          }" > hpc/hpc_badge.json

    - name: Haddock Badge
      run: |
        cabal v2-haddock --enable-coverage | grep " in " | sort -hr > hpc/haddock.txt
        COVERAGE=$(awk '{good += $3; total += $5} END {printf "%.0f", good/total*100}' hpc/haddock.txt)
        echo "\
          { \"schemaVersion\": 1, \
            \"label\": \"api docs\", \
            \"message\": \"$COVERAGE%\", \
            \"color\": \"success\" \
          }" > hpc/haddock_badge.json

    - name: Playground
      run: |
        CWD=`pwd`
        stack build
        cd reanimate-playground
        stack build
        stack exec --cwd ../ playground snippets reanimate-playground/snippets > viewer-elm/dist/snippets.js
        cd viewer-elm
        npm install
        npm run build
        mkdir $CWD/hpc/playground
        cp dist/* $CWD/hpc/playground/

    - name: Deploy 🚀
      uses: JamesIves/github-pages-deploy-action@3.5.9
      with:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        BRANCH: gh-pages # The branch the action should deploy to.
        FOLDER: hpc # The folder the action should deploy.