name: '[Docs] Lint v2'
on:
  pull_request:
    paths:
      - '.github/workflows/docs-lint-v2.yml'
      - 'supa-mdx-lint.config.toml'
      - 'apps/docs/content/**'
  push:
    branches:
      - master
  workflow_dispatch:

env:
  CARGO_NET_GIT_FETCH_WITH_CLI: true

permissions:
  contents: write
  pull-requests: write

jobs:
  supa-mdx-lint:
    name: supa-mdx-lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
          sparse-checkout: |
            supa-mdx-lint.config.toml
            supa-mdx-lint
            apps/docs/content
      - name: cache cargo
        id: cache-cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
          key: 0be447eba738c3fd56698eff8ad01fa56c2391d7
      - name: install linter
        if: steps.cache-cargo.outputs.cache-hit != 'true'
        run: cargo install --locked --git https://github.com/supabase-community/supa-mdx-lint --rev 0be447eba738c3fd56698eff8ad01fa56c2391d7
      - name: install reviewdog
        uses: reviewdog/action-setup@3f401fe1d58fe77e10d665ab713057375e39b887 # v1.3.0
        with:
          reviewdog_version: v0.20.2
      - name: run linter on PR
        if: github.event_name == 'pull_request'
        env:
          BASE_REF: ${{ github.base_ref }}
          REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -o pipefail
          git diff --name-only origin/$BASE_REF HEAD \
            | { grep -E "^apps/docs/content/" || test $? = 1; } \
            | xargs -r supa-mdx-lint --format rdf \
            | reviewdog -f=rdjsonl -reporter=github-pr-review
      - name: run linter on push or workflow dispatch
        if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          supa-mdx-lint apps/docs/content || {
            echo "Linter failed, attempting to fix errors..."
            git config --global user.name 'github-docs-bot'
            git config --global user.email 'github-docs-bot@supabase.com'
            BRANCH_NAME="bot/docs-lint-fixes"
            EXISTING_BRANCH=$(git ls-remote --heads origin $BRANCH_NAME)
            if [ -n "$EXISTING_BRANCH" ]; then
              git checkout $BRANCH_NAME
            else
              git checkout -b $BRANCH_NAME
            fi
            supa-mdx-lint apps/docs/content --fix || FIX_FAILED=1
            git add .
            git commit -m '[bot] fix lint errors' || true
            git push origin $BRANCH_NAME
            if [ -z "$EXISTING_BRANCH" ]; then
              gh pr create --title '[bot] fix lint errors' --body 'This PR fixes lint errors in the documentation.' --head $BRANCH_NAME
            fi
            if [ "${FIX_FAILED:-0}" -eq 1 ]; then
              echo "Fix did not correct all errors."
              exit 1
            fi
          }