main.yml

name: CI

on:
  pull_request:
    branches: [midnight]
  push:
    branches: [midnight]
    paths-ignore:
      - "ActionPriorityLists/**"
      - "SpellDataDump/*.txt"
      - "dbc_extract3/**"
      - "casc_extract/**"

env:
  SIMC_PROFILE: profiles/CI.simc
  CCACHE_GENERATION: 0 # bump if you need to "clean" ccache

# Most CI jobs only run if you are either:
# - committing PR against default_branch
# - committing or merging into default_branch
# If PR CI is desired for other branches, chain additional `|| github.base_ref == 'branch name'`

jobs:
  build:
    uses: ./.github/workflows/build.yml
    with:
      do-test: ${{ github.base_ref == github.event.repository.default_branch || github.ref_name == github.event.repository.default_branch }}

  spec-test-selection:
    runs-on: ubuntu-22.04
    if: github.base_ref == github.event.repository.default_branch || github.ref_name == github.event.repository.default_branch
    outputs:
      spec-matrix: ${{ steps.select.outputs.spec-matrix }}
    steps:
      - uses: actions/checkout@v6
        with:
          sparse-checkout: |
            engine
          fetch-depth: 0

      - name: Select Specs From Changed Files
        id: select
        shell: bash
        run: |
          set -euo pipefail

          ALL_SPECS=(
            deathknight_blood
            deathknight_unholy
            deathknight_frost
            demonhunter_devourer
            demonhunter_havoc
            demonhunter_vengeance
            druid_balance
            druid_feral
            druid_guardian
            druid_restoration
            evoker_devastation
            evoker_augmentation
            hunter_beast_mastery
            hunter_marksmanship
            hunter_survival
            mage_arcane
            mage_fire
            mage_frost
            monk_brewmaster
            monk_windwalker
            paladin_protection
            paladin_retribution
            priest_shadow
            rogue_assassination
            rogue_outlaw
            rogue_subtlety
            shaman_elemental
            shaman_enhancement
            warlock_affliction
            warlock_demonology
            warlock_destruction
            warrior_arms
            warrior_fury
            warrior_protection
          )

          if [[ "${GITHUB_EVENT_NAME}" == "pull_request" ]]; then
            BASE_SHA="${{ github.event.pull_request.base.sha }}"
            HEAD_SHA="${{ github.event.pull_request.head.sha }}"
          else
            BASE_SHA="${{ github.event.before }}"
            HEAD_SHA="${{ github.sha }}"
          fi

          mapfile -t CHANGED_FILES < <(git diff --name-only "$BASE_SHA" "$HEAD_SHA")

          echo "Changed files:"
          printf ' - %s\n' "${CHANGED_FILES[@]}"

          declare -A CLASS_CHANGED
          CLASS_CHANGED_COUNT=0
          RUN_ALL=0

          mark_class_changed() {
            local class_key="$1"
            if [[ -z "${CLASS_CHANGED[$class_key]:-}" ]]; then
              CLASS_CHANGED[$class_key]=1
              CLASS_CHANGED_COUNT=$((CLASS_CHANGED_COUNT + 1))
            fi
          }

          add_class_from_file() {
            local file="$1"

            case "$file" in
              engine/class_modules/sc_death_knight.cpp|engine/class_modules/apl/apl_death_knight.*|profiles/generators/*/*_Generate_Deathknight.simc)
                mark_class_changed deathknight
                ;;
              engine/class_modules/sc_demon_hunter.cpp|engine/class_modules/apl/apl_demon_hunter.*|engine/class_modules/apl/demon_hunter/*|profiles/generators/*/*_Generate_Demonhunter.simc)
                mark_class_changed demonhunter
                ;;
              engine/class_modules/sc_druid.cpp|engine/class_modules/apl/druid/*|profiles/generators/*/*_Generate_Druid.simc)
                mark_class_changed druid
                ;;
              engine/class_modules/sc_evoker.cpp|engine/class_modules/apl/apl_evoker.*|profiles/generators/*/*_Generate_Evoker.simc)
                mark_class_changed evoker
                ;;
              engine/class_modules/sc_hunter.cpp|engine/class_modules/apl/hunter/*|engine/class_modules/apl/apl_hunter.*|profiles/generators/*/*_Generate_Hunter.simc)
                mark_class_changed hunter
                ;;
              engine/class_modules/sc_mage.cpp|engine/class_modules/apl/mage.*|profiles/generators/*/*_Generate_Mage.simc)
                mark_class_changed mage
                ;;
              engine/class_modules/monk/*|engine/class_modules/apl/apl_monk.*|profiles/generators/*/*_Generate_Monk.simc)
                mark_class_changed monk
                ;;
              engine/class_modules/paladin/*|engine/class_modules/apl/apl_paladin.*|profiles/generators/*/*_Generate_Paladin.simc)
                mark_class_changed paladin
                ;;
              engine/class_modules/priest/*|engine/class_modules/apl/apl_priest.*|profiles/generators/*/*_Generate_Priest.simc)
                mark_class_changed priest
                ;;
              engine/class_modules/sc_rogue.cpp|engine/class_modules/apl/rogue/*|engine/class_modules/apl/apl_rogue.*|profiles/generators/*/*_Generate_Rogue.simc)
                mark_class_changed rogue
                ;;
              engine/class_modules/sc_shaman.cpp|engine/class_modules/apl/apl_shaman.*|engine/class_modules/apl/shaman/*|profiles/generators/*/*_Generate_Shaman.simc)
                mark_class_changed shaman
                ;;
              engine/class_modules/warlock/*|engine/class_modules/apl/warlock.*|profiles/generators/*/*_Generate_Warlock.simc)
                mark_class_changed warlock
                ;;
              engine/class_modules/sc_warrior.cpp|engine/class_modules/apl/apl_warrior.*|profiles/generators/*/*_Generate_Warrior.simc)
                mark_class_changed warrior
                ;;
              *)
                RUN_ALL=1
                ;;
            esac
          }

          if (( ${#CHANGED_FILES[@]} == 0 )); then
            RUN_ALL=1
          elif (( RUN_ALL == 0 )); then
            for file in "${CHANGED_FILES[@]}"; do
              add_class_from_file "$file"
              if (( RUN_ALL == 1 )); then
                break
              fi
            done
          fi

          if (( RUN_ALL == 1 || CLASS_CHANGED_COUNT == 0 )); then
            SELECTED_SPECS=("${ALL_SPECS[@]}")
          else
            SELECTED_SPECS=()
            for spec in "${ALL_SPECS[@]}"; do
              class_key="${spec%%_*}"
              if [[ -n "${CLASS_CHANGED[$class_key]:-}" ]]; then
                SELECTED_SPECS+=("$spec")
              fi
            done
          fi

          SPEC_JSON="["
          for spec in "${SELECTED_SPECS[@]}"; do
            if [[ "$SPEC_JSON" != "[" ]]; then
              SPEC_JSON+=","
            fi
            SPEC_JSON+="\"$spec\""
          done
          SPEC_JSON+="]"

          echo "spec-matrix=$SPEC_JSON" >> "$GITHUB_OUTPUT"
          echo "Selected spec matrix: $SPEC_JSON"

  environment-configuration-info:
    runs-on: ubuntu-22.04
    steps:
      - name: Report Environment Configuration Information
        run: |
          echo "${{github.event.repository.default_branch}} ${{github.ref}} ${{github.ref_name}} ${{github.base_ref}} ${{github.head_ref}} ${{github.sha}}"

  spec-test:
    needs: [build, spec-test-selection]
    if: github.base_ref == github.event.repository.default_branch || github.ref_name == github.event.repository.default_branch
    uses: ./.github/workflows/spec_test.yml
    with:
      cache-key: ubuntu-clang++-15-for_run-${{ github.sha }}-cpp-17
      is-ptr: false
      spec-matrix: ${{ needs.spec-test-selection.outputs.spec-matrix }}

  spec-test-ptr:
    needs: [build, spec-test-selection]
    if: github.base_ref == github.event.repository.default_branch || github.ref_name == github.event.repository.default_branch
    uses: ./.github/workflows/spec_test.yml
    with:
      cache-key: ubuntu-clang++-15-for_run-${{ github.sha }}-cpp-17
      is-ptr: true
      spec-matrix: ${{ needs.spec-test-selection.outputs.spec-matrix }}

  ubuntu-test:
    needs: [build]
    if: github.base_ref == github.event.repository.default_branch || github.ref_name == github.event.repository.default_branch
    uses: ./.github/workflows/ubuntu_test.yml

  # this job will do bad things if enabled for non-default branch without additional work
  update-generated-files:
    needs: [build, spec-test] # requires spec-test as this job downloads files generated from spec-test
    if: github.event_name == 'push' && ( success() || failure() ) && github.repository == 'simulationcraft/simc' && github.ref_name == github.event.repository.default_branch
    uses: ./.github/workflows/generate_files.yml