name: Test

on:
  push:
  pull_request:
  workflow_dispatch:
    inputs:
      short-integration-tests:
        description: 'Run only short integration tests'
        required: false
        default: false
        type: boolean

jobs:
  nix-env:
    name: Initialize Nix
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Install Nix packages
        uses: diamondburned/cache-install@main

  generate:
    name: Generate
    needs: [nix-env]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Install Nix packages
        uses: diamondburned/cache-install@main

      - name: Generate
        run: |
          go generate ./...

          if ! git diff --exit-code; then
            if [[ $GITHUB_REF == refs/heads/main ]]; then
              echo '::error::Repository differ after `go generate`.'
              exit 1
            else
              # Don't bother failing on non-main branches and PRs.
              echo '::warning::Repository differ after `go generate`.'
            fi
          fi
        env:
          GITHUB_REF: ${{ github.ref }}

  build:
    name: Build
    runs-on: ubuntu-latest
    needs: [generate]
    steps:
      - uses: actions/checkout@v2

      - name: Install Nix packages
        uses: diamondburned/cache-install@main

      - name: Build
        run: go build ./...

  unit-test:
    name: Unit Test
    runs-on: ubuntu-latest
    needs: [build]
    steps:
      - uses: actions/checkout@v2

      - name: Install Nix packages
        uses: diamondburned/cache-install@main

      - name: Test
        run: go test $TEST_FLAGS ./...
        env:
          TEST_FLAGS: >-
            -v=${{ runner.debug && '1' || '0' }}

  integration-test:
    name: Integration Test
    concurrency: integration-test
    runs-on: ubuntu-latest
    needs: [build]
    steps:
      - uses: actions/checkout@v2

      - name: Install Nix packages
        uses: diamondburned/cache-install@main

      - name: Test
        run: |
          go test -coverprofile /tmp/coverage.out -race $TEST_FLAGS ./...
          go tool cover -func /tmp/coverage.out
        env:
          TEST_FLAGS: >-
            -v=${{ runner.debug && '1' || '0' }}
            -short=${{ (github.event-name == 'workflow_dispatch' && !github.event.inputs.short-integration-tests) && '0' || '1' }}
          CHANNEL_ID: ${{ secrets.CHANNEL_ID }}
          GUILD_ID: ${{ secrets.GUILD_ID }}
          VOICE_ID: ${{ secrets.VOICE_ID }}
          BOT_TOKEN: ${{ secrets.BOT_TOKEN }}

      - name: Upload coverage profile
        uses: actions/upload-artifact@v3
        with:
          name: coverage
          path: /tmp/coverage.out