name: RPMI Git Build

on:
    push:
        branches:
            - main
    workflow_dispatch:
        inputs:
            commit_id:
                description: "Commit ID to build from"
                required: false

jobs:
    build:
        runs-on: ubuntu-latest
        strategy:
            matrix:
                target: [x86_64-unknown-linux-gnu, aarch64-unknown-linux-gnu]

        steps:
            - uses: actions/checkout@v4
              with:
                  ref: ${{ github.event.inputs.commit_id || github.sha }}

            - name: Install Rust
              uses: dtolnay/rust-toolchain@stable
              with:
                  toolchain: stable
                  target: ${{ matrix.target }}

            - name: Cache Cargo dependencies
              uses: actions/cache@v4
              with:
                  path: |
                      ~/.cargo/registry
                      ~/.cargo/git
                      target/${{ matrix.target }}
                  key: ${{ runner.os }}-cargo-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
                  restore-keys: |
                      ${{ runner.os }}-cargo-${{ matrix.target }}-
                      ${{ runner.os }}-cargo-

            - name: Install cross-compilation tools
              if: ${{ matrix.target == 'aarch64-unknown-linux-gnu' }}
              run: |
                  sudo apt-get update
                  sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu binutils-aarch64-linux-gnu libc6-dev-arm64-cross

            - name: Ensure Rust target is installed
              run: |
                  rustup target add ${{ matrix.target }}

            - name: Configure cargo linker for aarch64
              if: ${{ matrix.target == 'aarch64-unknown-linux-gnu' }}
              run: |
                  mkdir -p .cargo
                  cat > .cargo/config.toml <<'EOF'
                  [target.aarch64-unknown-linux-gnu]
                  linker = "aarch64-linux-gnu-gcc"
                  ar = "aarch64-linux-gnu-ar"
                  EOF

            - name: Build
              run: cargo build --release --target ${{ matrix.target }}

            - name: Get version, date, and hash
              id: get_info
              run: |
                  VERSION=$(git tag | sort -V | tail -1)
                  DATE=$(git log -1 --pretty=format:%cd --date=format:%Y%m%d)
                  HASH=$(git rev-parse --short HEAD)
                  echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
                  echo "DATE=$DATE" >> $GITHUB_OUTPUT
                  echo "HASH=$HASH" >> $GITHUB_OUTPUT

            - name: Prepare rpmi-git.spec
              run: |
                  cp ./assets/rpm-specs/rpmi-git.spec rpmi-git-build.spec
                  sed -i "s/@@TAG@@/${{ steps.get_info.outputs.VERSION }}/g" rpmi-git-build.spec
                  sed -i "s/@@DATE@@/${{ steps.get_info.outputs.DATE }}/g" rpmi-git-build.spec
                  sed -i "s/@@HASH@@/${{ steps.get_info.outputs.HASH }}/g" rpmi-git-build.spec

            - name: Upload spec artifact
              uses: actions/upload-artifact@v4
              with:
                  name: rpmi-git-spec-${{ matrix.target }}
                  path: rpmi-git-build.spec

            - name: Upload binary artifact
              uses: actions/upload-artifact@v4
              with:
                  name: rpmi-git-${{ matrix.target }}
                  path: target/${{ matrix.target }}/release/rpmi