name: CI

on:
  pull_request:
    types: [opened, synchronize]
  workflow_dispatch:

env:
  PIP_BREAK_SYSTEM_PACKAGES: "1"
  PYTHONPATH: src
  CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
  CI_GITEA_USERNAME: ${{ vars.CI_GITEA_USERNAME }}

jobs:
  # Single validation job that merges: quality, detect-changes,
  # release-dry-run, pr-review, and pre-merge-check.
  # Uses ci-full image (has git-cliff for release-dry-run).
  # Saves ~4x checkout+setup overhead vs 5 separate jobs.
  validate:
    runs-on: docker
    container:
      image: git.oblachno.oblachno.fyi/oblachno-oss/runner-images/ci-full:latest
      credentials:
        username: ${{ env.CI_GITEA_USERNAME }}
        password: ${{ env.CI_GITEA_API_TOKEN }}
    timeout-minutes: 15
    defaults:
      run:
        shell: bash
    outputs:
      user-facing-changed: ${{ steps.detect.outputs.user-facing-changed }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: ./.gitea/actions/setup-env
      - uses: ./.gitea/actions/quality-checks
        with:
          package: devx
          test-speed-max: "15"
          test-speed-max-single: "0.5"
      - name: Workflow dry-run validation
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          # Best-effort: only runs if act_runner is installed
          if command -v act_runner >/dev/null 2>&1; then
            make workflow-dryrun
          else
            echo "act_runner not found — skipping workflow dry-run (static lint still passed)"
          fi
      # --- detect-changes step ---
      - name: Detect changed paths
        id: detect
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.classify_changes \
            --base "origin/master" \
            --head "${{ github.event.pull_request.head.sha || github.sha }}" \
            --github-output
      # --- validate-pr + pr-review steps (PR only) ---
      - name: Validate auto-merge preconditions
        if: github.event_name == 'pull_request'
        env:
          VIKUNJA_TOKEN: ${{ secrets.VIKUNJA_TOKEN }}
          DEVX_VIKUNJA_PROJECT_ID: "8"
          HEAD_REF: ${{ github.head_ref }}
          PR_TITLE: ${{ github.event.pull_request.title }}
          REPOSITORY: ${{ github.repository }}
          PR_NUMBER: ${{ github.event.number }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.check_auto_merge_ready \
            --branch "$HEAD_REF" \
            --pr-title "$PR_TITLE" \
            --repo "$REPOSITORY" \
            --pr-number "$PR_NUMBER"
      - name: Run automated PR review
        if: github.event_name == 'pull_request'
        run: |
          . .venv/bin/activate 2>/dev/null || true
          set -euo pipefail
          python3 -m devx.ci.pr_review \
            "${{ github.event.number }}" \
            "${{ github.repository }}"
      # --- release-dry-run step (conditional) ---
      - name: Release dry-run validation
        if: steps.detect.outputs.user-facing-changed == 'true'
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          python3 -m devx.ci.release --dry-run
      - uses: ./.gitea/actions/notify-failure
        with:
          workflow: "ci/validate"

  auto-merge:
    # Auto-merge runs after validate passes. It reads the task ID
    # from the branch name, validates the PR title, and squash-merges.
    needs: [validate]
    if: >-
      always() &&
      github.event_name == 'pull_request' &&
      needs.validate.result == 'success'
    runs-on: docker
    container:
      image: git.oblachno.oblachno.fyi/oblachno-oss/runner-images/ci-base:latest
      credentials:
        username: ${{ env.CI_GITEA_USERNAME }}
        password: ${{ env.CI_GITEA_API_TOKEN }}
    timeout-minutes: 10
    defaults:
      run:
        shell: bash
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.CI_GITEA_API_TOKEN }}
      - uses: ./.gitea/actions/setup-env
      - name: Post approval review
        env:
          REVIEWER_GITEA_API_TOKEN: ${{ secrets.REVIEWER_GITEA_API_TOKEN }}
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          PR_NUMBER: ${{ github.event.number }}
          REPOSITORY: ${{ github.repository }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.pr_review \
            "$PR_NUMBER" \
            "$REPOSITORY" \
            --event APPROVE \
            --checklist-confirmed \
            --checklist-categories 1,2,3,4,5,6,7,8,9,10,11,12,13 \
            --body "Auto-approved: all CI checks passed (validate job)."
      - name: Squash merge with task ID
        env:
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          VIKUNJA_TOKEN: ${{ secrets.VIKUNJA_TOKEN }}
          DEVX_VIKUNJA_PROJECT_ID: "8"
          HEAD_REF: ${{ github.head_ref }}
          PR_TITLE: ${{ github.event.pull_request.title }}
          REPOSITORY: ${{ github.repository }}
          PR_NUMBER: ${{ github.event.number }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.auto_merge \
            "$HEAD_REF" \
            "$PR_TITLE" \
            "$REPOSITORY" \
            "$PR_NUMBER"