name: Release

on:
  push:
    tags:
      - '[0-9]+.[0-9]+.[0-9]+'
  workflow_dispatch:

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read
  packages: write

env:
  CARGO_TERM_COLOR: always
  BINARY_NAME: telemt

jobs:
# ==========================
# GNU / glibc
# ==========================
  build-gnu:
    name: GNU ${{ matrix.target }}
    runs-on: ubuntu-latest

    container:
      image: rust:slim-bookworm

    strategy:
      fail-fast: false
      matrix:
        include:
          - target: x86_64-unknown-linux-gnu
            asset: telemt-x86_64-linux-gnu
          - target: aarch64-unknown-linux-gnu
            asset: telemt-aarch64-linux-gnu

    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
          targets: |
            x86_64-unknown-linux-gnu
            aarch64-unknown-linux-gnu

      - name: Install deps
        run: |
          apt-get update
          apt-get install -y \
            build-essential \
            clang \
            lld \
            pkg-config \
            gcc-aarch64-linux-gnu \
            g++-aarch64-linux-gnu

      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: gnu-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}

      - name: Build
        run: |
          if [ "${{ matrix.target }}" = "aarch64-unknown-linux-gnu" ]; then
            export CC=aarch64-linux-gnu-gcc
            export CXX=aarch64-linux-gnu-g++
            export RUSTFLAGS="-C linker=aarch64-linux-gnu-gcc"
          else
            export CC=clang
            export CXX=clang++
            export RUSTFLAGS="-C linker=clang -C link-arg=-fuse-ld=lld"
          fi

          cargo build --release --target ${{ matrix.target }}

      - name: Package
        run: |
          mkdir -p dist
          cp target/${{ matrix.target }}/release/${{ env.BINARY_NAME }} dist/telemt

          cd dist
          tar -czf ${{ matrix.asset }}.tar.gz \
            --owner=0 --group=0 --numeric-owner \
            telemt

          sha256sum ${{ matrix.asset }}.tar.gz > ${{ matrix.asset }}.sha256

      - uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.asset }}
          path: dist/*

# ==========================
# MUSL
# ==========================
  build-musl:
    name: MUSL ${{ matrix.target }}
    runs-on: ubuntu-latest
  
    container:
      image: rust:slim-bookworm
  
    strategy:
      fail-fast: false
      matrix:
        include:
          - target: x86_64-unknown-linux-musl
            asset: telemt-x86_64-linux-musl
          - target: aarch64-unknown-linux-musl
            asset: telemt-aarch64-linux-musl
  
    steps:
      - uses: actions/checkout@v4
  
      - name: Install deps
        run: |
          apt-get update
          apt-get install -y \
            musl-tools \
            pkg-config \
            curl
  
      - uses: actions/cache@v4
        if: matrix.target == 'aarch64-unknown-linux-musl'
        with:
          path: ~/.musl-aarch64
          key: musl-toolchain-aarch64-v1
  
      - name: Install aarch64 musl toolchain
        if: matrix.target == 'aarch64-unknown-linux-musl'
        run: |
          set -e
  
          TOOLCHAIN_DIR="$HOME/.musl-aarch64"
          ARCHIVE="aarch64-linux-musl-cross.tgz"
          URL="https://github.com/telemt/telemt/releases/download/toolchains/$ARCHIVE"
  
          if [ -x "$TOOLCHAIN_DIR/bin/aarch64-linux-musl-gcc" ]; then
            echo "✅ MUSL toolchain cached"
          else
            echo "⬇️ Downloading MUSL toolchain..."
  
            curl -fL \
              --retry 5 \
              --retry-delay 3 \
              --connect-timeout 10 \
              --max-time 120 \
              -o "$ARCHIVE" "$URL"
  
            mkdir -p "$TOOLCHAIN_DIR"
            tar -xzf "$ARCHIVE" --strip-components=1 -C "$TOOLCHAIN_DIR"
          fi
  
          echo "$TOOLCHAIN_DIR/bin" >> $GITHUB_PATH
  
      - name: Add rust target
        run: rustup target add ${{ matrix.target }}
  
      - uses: actions/cache@v4
        with:
          path: |
            /usr/local/cargo/registry
            /usr/local/cargo/git
            target
          key: musl-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
  
      - name: Build
        run: |
          if [ "${{ matrix.target }}" = "aarch64-unknown-linux-musl" ]; then
            export CC=aarch64-linux-musl-gcc
            export CC_aarch64_unknown_linux_musl=aarch64-linux-musl-gcc
            export RUSTFLAGS="-C target-feature=+crt-static -C linker=aarch64-linux-musl-gcc"
          else
            export CC=musl-gcc
            export CC_x86_64_unknown_linux_musl=musl-gcc
            export RUSTFLAGS="-C target-feature=+crt-static"
          fi
  
          cargo build --release --target ${{ matrix.target }}
  
      - name: Package
        run: |
          mkdir -p dist
          cp target/${{ matrix.target }}/release/${{ env.BINARY_NAME }} dist/telemt
  
          cd dist
          tar -czf ${{ matrix.asset }}.tar.gz \
            --owner=0 --group=0 --numeric-owner \
            telemt
  
          sha256sum ${{ matrix.asset }}.tar.gz > ${{ matrix.asset }}.sha256
  
      - uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.asset }}
          path: dist/*

# ==========================
# Release
# ==========================
  release:
    name: Release
    runs-on: ubuntu-latest
    needs: [build-gnu, build-musl]

    permissions:
      contents: write

    steps:
      - uses: actions/download-artifact@v4
        with:
          path: artifacts

      - name: Flatten
        run: |
          mkdir dist
          find artifacts -type f -exec cp {} dist/ \;

      - name: Create Release
        uses: softprops/action-gh-release@v2
        with:
          files: dist/*
          generate_release_notes: true
          prerelease: ${{ contains(github.ref, '-') }}

# ==========================
# Docker
# ==========================
  docker:
    name: Docker
    runs-on: ubuntu-latest
    needs: [build-gnu, build-musl]
  
    permissions:
      contents: read
      packages: write
  
    steps:
      - uses: actions/checkout@v4
  
      - uses: actions/download-artifact@v4
        with:
          path: dist
  
      - name: Extract binaries
        run: |
          mkdir bin
  
          tar -xzf dist/telemt-x86_64-linux-musl/telemt-x86_64-linux-musl.tar.gz -C bin
          mv bin/telemt bin/telemt-amd64
  
          tar -xzf dist/telemt-aarch64-linux-musl/telemt-aarch64-linux-musl.tar.gz -C bin
          mv bin/telemt bin/telemt-arm64
  
      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3
  
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
  
      - name: Extract version
        id: vars
        run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
  
      - name: Build & Push (multi-arch)
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            ghcr.io/${{ github.repository }}:${{ steps.vars.outputs.VERSION }}
            ghcr.io/${{ github.repository }}:latest
          build-args: |
            BINARY_AMD64=bin/telemt-amd64
            BINARY_ARM64=bin/telemt-arm64