name: CI

on:
  workflow_dispatch:
  push:
    tags:
      - '[0-9]+.[0-9]+.[0-9]+' # Match semantic versioning tags
    branches:
      - main
      - dev
    paths-ignore:
      - '*.md'

env:
  kibot_config: kibot_yaml/kibot_main.yaml
  # Used variant. We assume:
  # DRAFT: only schematic in progress, will only generate schematic PDF, netlist and BoM
  # PRELIMINARY: will generate both schematic and PCB documents, but no ERC/DRC
  # CHECKED: will generate both schematic and PCB documents, with ERC/DRC
  # RELEASED: similar to CHECKED, automatically selected when pushing a tag to main
  kibot_variant: DRAFT

  # Set the KiCad version to 9
  kicad_version: 9

  kibot_log: kibot_run.log
 
permissions:
  contents: write

jobs:
  release:
    needs: generate_outputs
    runs-on: ubuntu-latest
    if: github.ref_type == 'tag'
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}

      - name: Pull latest changes
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "GitHub Actions"
          git fetch
          git pull origin main

      - name: Release
        uses: docker://antonyurchenko/git-release:v5
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          args: |
            Schematic/*.pdf
            Manufacturing/Assembly/*
            Manufacturing/Fabrication/*.pdf
            Manufacturing/Fabrication/*.zip
            Manufacturing/Fabrication/*.txt
            3D/*.step
            Testing/Testpoints/*.csv

  generate_outputs:
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, 'Merge pull request') || github.ref_type == 'tag'"
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      # Run these changelog update steps only on tag pushes
      - name: Pull latest changes for changelog update
        if: ${{ github.ref_type == 'tag' }}
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "GitHub Actions"
          git fetch
          git pull origin main

      - name: Extract release notes
        if: ${{ github.ref_type == 'tag' }}
        uses: ffurrer2/extract-release-notes@v2
        id: extract-release-notes
        with:
          prerelease: true

      - name: Update changelog
        if: ${{ github.ref_type == 'tag' }}
        uses: thomaseizinger/keep-a-changelog-new-release@v2
        with:
          tag: ${{ github.ref_name }}

      - name: Commit updated CHANGELOG
        if: ${{ github.ref_type == 'tag' }}
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          branch: main
          commit_message: Update CHANGELOG
          file_pattern: CHANGELOG.md
          push_options: '--force'

      - name: Cache 3D models data
        id: models-cache
        uses: set-soft/cache@main
        with:
          path: ~/cache_3d
          key: cache_3d

      - name: Determine VERSION Argument and Override Variant if Tag
        id: determine-version-and-args
        run: |
          last_tag=$(git describe --tags --abbrev=0 || echo "")
          if [[ "${{ github.ref_type }}" == "tag" ]]; then
            version_arg="-E REVISION='${last_tag}'"
            echo "Overriding kibot_variant to 'RELEASED' for tag"
            echo "kibot_variant=RELEASED" >> $GITHUB_ENV
          else
            version_arg="-E REVISION='${last_tag}+ (Unreleased)'"
            echo "kibot_variant=${{ env.kibot_variant }}" >> $GITHUB_ENV
          fi

          # Decide which group to use depending on kicad_version
          if [[ "${{ env.kicad_version }}" == "9" ]]; then
            group_name="all_group_k9"
          else
            group_name="all_group"
          fi

          # Determine additional_args based on the variant
          case "$kibot_variant" in
            "DRAFT")
              additional_args="--skip-pre draw_fancy_stackup,erc,drc ${version_arg} --log ${{ env.kibot_log }} draft_group"
              ;;
            "PRELIMINARY")
              additional_args="--skip-pre erc,drc ${version_arg} --log ${{ env.kibot_log }} ${group_name}"
              ;;
            "CHECKED"|"RELEASED")
              additional_args="${version_arg} --log ${{ env.kibot_log }} ${group_name}"
              ;;
            *)
              echo "Unknown variant: $kibot_variant"
              exit 1
              ;;
          esac

          echo "version_arg=${version_arg}" >> $GITHUB_ENV
          echo "additional_args=${additional_args}" >> $GITHUB_ENV

      # Generate notes (skipped for DRAFT variant)
      - name: Generate notes (KiCad 8)
        if: ${{ env.kicad_version == '8' && env.kibot_variant != 'DRAFT' }}
        uses: INTI-CMNB/KiBot@v2_dk8
        with:
          skip: all
          variant: ${{ env.kibot_variant }}
          config: ${{ env.kibot_config }}
          additional_args: --log kibot_run_notes.log notes

      - name: Generate notes (KiCad 9)
        if: ${{ env.kicad_version == '9' && env.kibot_variant != 'DRAFT' }}
        uses: INTI-CMNB/KiBot@v2_dk9
        with:
          skip: all
          variant: ${{ env.kibot_variant }}
          config: ${{ env.kibot_config }}
          additional_args: --log kibot_run_notes.log notes

      # Generate README only (only for DRAFT variant)
      - name: Generate README only (KiCad 8)
        if: ${{ env.kicad_version == '8' && env.kibot_variant == 'DRAFT' }}
        uses: INTI-CMNB/KiBot@v2_dk8
        with:
          skip: draw_fancy_stackup,set_text_variables,erc,drc
          variant: ${{ env.kibot_variant }}
          config: ${{ env.kibot_config }}
          additional_args: --log kibot_run_readme.log md_readme

      - name: Generate README only (KiCad 9)
        if: ${{ env.kicad_version == '9' && env.kibot_variant == 'DRAFT' }}
        uses: INTI-CMNB/KiBot@v2_dk9
        with:
          skip: draw_fancy_stackup,set_text_variables,erc,drc
          variant: ${{ env.kibot_variant }}
          config: ${{ env.kibot_config }}
          additional_args: --log kibot_run_readme.log md_readme

      # Generate outputs
      - name: Generate outputs (KiCad 8)
        if: ${{ env.kicad_version == '8' }}
        uses: INTI-CMNB/KiBot@v2_dk8
        with:
          additional_args: ${{ env.additional_args }}
          variant: ${{ env.kibot_variant }}
          config: ${{ env.kibot_config }}
          cache3D: YES

      - name: Generate outputs (KiCad 9)
        if: ${{ env.kicad_version == '9' }}
        uses: INTI-CMNB/KiBot@v2_dk9
        with:
          additional_args: ${{ env.additional_args }}
          variant: ${{ env.kibot_variant }}
          config: ${{ env.kibot_config }}
          cache3D: YES

      - name: Pull latest changes
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "GitHub Actions"

          if [[ "${{ github.ref_type }}" == "tag" ]]; then
            echo "Triggered by a tag, committing changes in detached HEAD state"
            git add -A
            git commit -m "Update Outputs (release)"

            DETACHED_COMMIT=$(git rev-parse HEAD)
            echo "Checking out the main branch"
            git fetch origin main
            git checkout main

            echo "Merging detached HEAD commit into main"
            git merge --no-ff $DETACHED_COMMIT -m "Merge outputs from tag-triggered workflow" -X theirs
            echo "Pushing to main branch"
            git push origin main
          else
            echo "Triggered by a branch, using the current branch"
            git pull origin ${{ github.ref_name }} --tags --force
          fi

      - name: Discard changes to .kicad_pcb files and remove temp files
        run: | 
          git checkout HEAD -- $(git ls-files "*.kicad_pcb")
          git clean -f "*.kicad_pcb"
          git clean -f "*.kicad_pro"
          git clean -f "*.kicad_dru"
          git clean -f "*.kicad_prl"

      - name: Update Outputs
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          branch: ${{ github.ref_name }}
          commit_message: Update Outputs

      - name: Store log
        if: ${{ always() }}
        uses: actions/upload-artifact@v3
        with:
          name: log_file
          path: ${{ env.kibot_log }}

      - name: Store notes log
        if: ${{ always() && env.kibot_variant != 'DRAFT' }} 
        uses: actions/upload-artifact@v3
        with:
          name: log_file_notes
          path: kibot_run_notes.log

      - name: Store README log
        if: ${{ always() && env.kibot_variant == 'DRAFT' }} 
        uses: actions/upload-artifact@v3
        with:
          name: log_file_readme
          path: kibot_run_readme.log