name: release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        include:
          # Pin to Ubuntu 22.04 (GLIBC 2.35) so the glibc builds run on any
          # distro that's ≥ Ubuntu 22.04 / Debian 12 / Mint 21 / Fedora 36.
          # ubuntu-latest points at 24.04 (GLIBC 2.39) which bakes in a
          # too-new GLIBC symbol requirement and rejects loading on older
          # distros. For users behind tight internet who literally can't
          # dist-upgrade, this matters.
          - target: x86_64-unknown-linux-gnu
            os: ubuntu-22.04
            name: mhrv-rs-linux-amd64
          - target: aarch64-unknown-linux-gnu
            os: ubuntu-22.04
            name: mhrv-rs-linux-arm64
          - target: arm-unknown-linux-gnueabihf
            os: ubuntu-22.04
            name: mhrv-rs-raspbian-armhf
          - target: x86_64-apple-darwin
            os: macos-latest
            name: mhrv-rs-macos-amd64
          - target: aarch64-apple-darwin
            os: macos-latest
            name: mhrv-rs-macos-arm64
          - target: x86_64-pc-windows-gnu
            os: windows-latest
            name: mhrv-rs-windows-amd64
          - target: x86_64-unknown-linux-musl
            os: ubuntu-latest
            name: mhrv-rs-linux-musl-amd64
          - target: aarch64-unknown-linux-musl
            os: ubuntu-latest
            name: mhrv-rs-linux-musl-arm64
          # OpenWRT MT7621 (soft-float mipsel 32-bit). Dozens of cheap
          # home routers run this chipset and they *specifically* need
          # the soft-float variant — MT7621 has no hardware FPU and a
          # hard-float binary segfaults on the first fp op. Tier-3 in
          # Rust since 1.72; we build it via messense's musl-cross
          # docker image which still has a mipsel-softfloat toolchain.
          # `continue-on-error: true` so a regression here doesn't block
          # the rest of the release. Issue #26.
          - target: mipsel-unknown-linux-musl
            os: ubuntu-latest
            name: mhrv-rs-openwrt-mipsel-softfloat
            mipsel_softfloat: true

    runs-on: ${{ matrix.os }}
    # mipsel-softfloat is best-effort: the Rust tier-3 target occasionally
    # regresses. Letting it fail keeps the main release going so
    # desktop/Android users aren't blocked by MT7621 router support.
    continue-on-error: ${{ matrix.mipsel_softfloat == true }}

    steps:
      - uses: actions/checkout@v4

      # Skip the host-level rustup install for mipsel-softfloat — that
      # target is tier-3 in stable Rust (no prebuilt stdlib available
      # via rustup), and the docker image we use for this build ships
      # its own Rust toolchain + std. Trying to pass
      # `targets: mipsel-unknown-linux-musl` to dtolnay/rust-toolchain
      # errors out with "error: component 'rust-std' for target
      # 'mipsel-unknown-linux-musl' is unavailable for download", which
      # fails the job before the docker step ever runs.
      - uses: dtolnay/rust-toolchain@stable
        if: matrix.mipsel_softfloat != true
        with:
          targets: ${{ matrix.target }}

      # eframe needs a few system libs on Linux for window management, keyboard,
      # and OpenGL/X11/Wayland. We install them on the Ubuntu runners regardless
      # of arch so both CLI-only and UI builds succeed.
      - name: Install Linux eframe system deps
        if: runner.os == 'Linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            libxkbcommon-dev \
            libwayland-dev \
            libxcb1-dev libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev \
            libx11-dev \
            libgl1-mesa-dev libglib2.0-dev libgtk-3-dev

      - name: Install aarch64 cross-compile toolchain (Linux only)
        if: matrix.target == 'aarch64-unknown-linux-gnu'
        run: |
          sudo apt-get update
          sudo apt-get install -y gcc-aarch64-linux-gnu
          echo '[target.aarch64-unknown-linux-gnu]' >> ~/.cargo/config.toml
          echo 'linker = "aarch64-linux-gnu-gcc"' >> ~/.cargo/config.toml

      - name: Install armhf cross-compile toolchain (Linux only)
        if: matrix.target == 'arm-unknown-linux-gnueabihf'
        run: |
          sudo apt-get update
          sudo apt-get install -y gcc-arm-linux-gnueabihf
          echo '[target.arm-unknown-linux-gnueabihf]' >> ~/.cargo/config.toml
          echo 'linker = "arm-linux-gnueabihf-gcc"' >> ~/.cargo/config.toml

      - name: Install Windows MinGW toolchain
        if: matrix.target == 'x86_64-pc-windows-gnu'
        id: msys2
        uses: msys2/setup-msys2@v2
        with:
          msystem: MINGW64
          update: true
          install: mingw-w64-x86_64-gcc

      - name: Configure Windows GNU linker
        if: matrix.target == 'x86_64-pc-windows-gnu'
        shell: pwsh
        run: |
          $gcc = "${{ steps.msys2.outputs.msys2-location }}\mingw64\bin\gcc.exe" -replace '\\','/'
          New-Item -ItemType Directory -Force -Path $env:USERPROFILE/.cargo | Out-Null
          Add-Content -Path $env:USERPROFILE/.cargo/config.toml -Value '[target.x86_64-pc-windows-gnu]'
          Add-Content -Path $env:USERPROFILE/.cargo/config.toml -Value "linker = '$gcc'"

      - name: Build CLI
        if: "!endsWith(matrix.target, '-linux-musl')"
        run: cargo build --release --target ${{ matrix.target }} --bin mhrv-rs

      # Fully-static musl builds for OpenWRT / Alpine / libc-less systems.
      # messense/rust-musl-cross ships a pre-built musl toolchain so `ring`
      # (rustls' crypto backend) cross-compiles cleanly on both archs.
      - name: Build CLI (musl via docker)
        if: matrix.target == 'x86_64-unknown-linux-musl'
        run: |
          docker run --rm -v "$PWD":/src -w /src \
            messense/rust-musl-cross:x86_64-musl \
            cargo build --release --target x86_64-unknown-linux-musl --bin mhrv-rs
          sudo chown -R "$(id -u):$(id -g)" target

      - name: Build CLI (musl via docker, arm64)
        if: matrix.target == 'aarch64-unknown-linux-musl'
        run: |
          docker run --rm -v "$PWD":/src -w /src \
            messense/rust-musl-cross:aarch64-musl \
            cargo build --release --target aarch64-unknown-linux-musl --bin mhrv-rs
          sudo chown -R "$(id -u):$(id -g)" target

      # OpenWRT MT7621 / mipsel-softfloat. The messense image tag
      # `mipsel-musl-softfloat` ships a toolchain that emits soft-float
      # insn exclusively — matches the MT7621's FPU-less reality.
      # Requires Rust nightly + -Z build-std because mipsel is tier 3
      # in the stable channel, which means no pre-built std.
      - name: Build CLI (mipsel-softfloat via docker)
        if: matrix.target == 'mipsel-unknown-linux-musl' && matrix.mipsel_softfloat == true
        run: |
          docker run --rm -v "$PWD":/src -w /src \
            messense/rust-musl-cross:mipsel-musl-softfloat \
            sh -c "rustup toolchain install nightly --profile minimal --component rust-src && \
                   cargo +nightly build --release \
                     -Z build-std=std,panic_abort \
                     --target mipsel-unknown-linux-musl \
                     --bin mhrv-rs"
          sudo chown -R "$(id -u):$(id -g)" target

      # UI build: we try to build the UI binary on every platform. If it fails
      # on cross-compile for linux-arm64 (missing arm64 system libs cross),
      # we still ship the CLI. We also skip the UI on musl targets (OpenWRT etc.
      # are headless, bundling X11 makes no sense).
      - name: Build UI
        if: matrix.target != 'aarch64-unknown-linux-gnu' && matrix.target != 'arm-unknown-linux-gnueabihf' && !endsWith(matrix.target, '-linux-musl')
        run: cargo build --release --target ${{ matrix.target }} --features ui --bin mhrv-rs-ui

      - name: Package (unix)
        if: runner.os != 'Windows'
        run: |
          mkdir -p dist
          cp target/${{ matrix.target }}/release/mhrv-rs dist/mhrv-rs
          chmod +x dist/mhrv-rs
          if [ -f target/${{ matrix.target }}/release/mhrv-rs-ui ]; then
            cp target/${{ matrix.target }}/release/mhrv-rs-ui dist/mhrv-rs-ui
            chmod +x dist/mhrv-rs-ui
          fi
          # OpenWRT / musl archives get the procd init script instead of run.sh,
          # since routers don't have a CA to install and run headless via procd.
          case "${{ matrix.target }}" in
            *-linux-musl)
              cp assets/openwrt/mhrv-rs.init dist/mhrv-rs.init
              chmod +x dist/mhrv-rs.init
              ;;
            *)
              cp assets/launchers/run.sh dist/run.sh
              chmod +x dist/run.sh
              if [ "${{ runner.os }}" = "macOS" ]; then
                cp assets/launchers/run.command dist/run.command
                chmod +x dist/run.command
              fi
              ;;
          esac

      - name: Build macOS .app bundle
        if: runner.os == 'macOS'
        run: |
          VER="${GITHUB_REF#refs/tags/v}"
          ./assets/macos/build-app.sh dist/mhrv-rs-ui "$VER" dist
          # Make a clean zip of just the .app for the release
          cd dist
          zip -qry "${{ matrix.name }}-app.zip" mhrv-rs.app

      - name: Package (windows)
        if: runner.os == 'Windows'
        shell: pwsh
        run: |
          New-Item -ItemType Directory -Force -Path dist | Out-Null
          Copy-Item target/${{ matrix.target }}/release/mhrv-rs.exe dist/mhrv-rs.exe
          if (Test-Path target/${{ matrix.target }}/release/mhrv-rs-ui.exe) {
            Copy-Item target/${{ matrix.target }}/release/mhrv-rs-ui.exe dist/mhrv-rs-ui.exe
          }
          Copy-Item assets/launchers/run.bat dist/run.bat

      - name: Make archive
        shell: bash
        run: |
          cd dist
          case "${{ matrix.target }}" in
            *-pc-windows-*)
              7z a -tzip "${{ matrix.name }}.zip" mhrv-rs.exe mhrv-rs-ui.exe run.bat
              ;;
            *-apple-darwin)
              tar czf "${{ matrix.name }}.tar.gz" mhrv-rs mhrv-rs-ui run.sh run.command
              ;;
            *-linux-musl)
              tar czf "${{ matrix.name }}.tar.gz" mhrv-rs mhrv-rs.init
              ;;
            *)
              tar czf "${{ matrix.name }}.tar.gz" mhrv-rs mhrv-rs-ui run.sh 2>/dev/null || tar czf "${{ matrix.name }}.tar.gz" mhrv-rs run.sh
              ;;
          esac

      - uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.name }}
          path: |
            dist/${{ matrix.name }}.tar.gz
            dist/${{ matrix.name }}.zip
            dist/${{ matrix.name }}-app.zip
          if-no-files-found: ignore

  # Android build — separate job so it doesn't inflate the matrix. The
  # Rust side here cross-compiles to FOUR ABIs (arm64-v8a, armeabi-v7a,
  # x86_64, x86) via cargo-ndk and drops the .so files into the Gradle
  # project's jniLibs/ tree, which then packages them into a single
  # universal APK. Users pick it once, no per-ABI split.
  android:
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 17

      - name: Set up Android SDK
        uses: android-actions/setup-android@v3
        with:
          cmdline-tools-version: 11076708

      - name: Install NDK
        run: |
          yes | sdkmanager --install "ndk;26.1.10909125" >/dev/null
          echo "ANDROID_NDK_HOME=$ANDROID_HOME/ndk/26.1.10909125" >> "$GITHUB_ENV"

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: aarch64-linux-android,armv7-linux-androideabi,x86_64-linux-android,i686-linux-android

      - name: Install cargo-ndk
        run: cargo install cargo-ndk --locked

      # `./gradlew :app:assembleRelease` triggers cargoBuildRelease first
      # which invokes cargo-ndk with all four targets, then Gradle packages
      # the APK (release buildType signed with the debug keystore — see
      # android/app/build.gradle.kts comment explaining why).
      - name: Build release APK
        working-directory: android
        run: |
          chmod +x ./gradlew
          ./gradlew :app:assembleRelease --no-daemon --stacktrace

      - name: Rename APK with version
        working-directory: android
        run: |
          VER="${GITHUB_REF#refs/tags/v}"
          SRC="app/build/outputs/apk/release/app-release.apk"
          if [ ! -f "$SRC" ]; then
            # Some AGP versions name it differently when the release config
            # can't be auto-signed. Catch that up front with a clear error
            # instead of a silent missing-artifact later.
            echo "::error::expected $SRC to exist; actual outputs:"
            find app/build/outputs/apk -type f -name '*.apk' -print
            exit 1
          fi
          mkdir -p ../dist
          cp "$SRC" "../dist/mhrv-rs-android-universal-v${VER}.apk"

      - uses: actions/upload-artifact@v4
        with:
          name: mhrv-rs-android-universal
          path: dist/*.apk
          if-no-files-found: error

  release:
    needs: [build, android]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/download-artifact@v4
        with:
          path: dist
          merge-multiple: true

      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          files: dist/*
          generate_release_notes: true

  # Notify the Persian-speaking Telegram channel with the CI-built
  # Android APK + its sha256 + the per-version changelog from
  # `docs/changelog/v<tag>.md`.
  #
  # Two Telegram API calls:
  #   1. sendDocument — APK file + a short caption (Telegram caps
  #      captions at 1024 chars, and we have bigger changelogs than
  #      that).
  #   2. sendMessage — full changelog as a reply to #1, Persian
  #      quote-block first then English, same pattern as the
  #      previous manual post. No emojis, as the user asked.
  #
  # Needs two repo secrets:
  #   TELEGRAM_BOT_TOKEN  — bot the channel admits as poster
  #   TELEGRAM_CHAT_ID    — numeric chat id (starts with -100...)
  # Missing either => the whole job is skipped (not failed) so a
  # forker who hasn't set up a Telegram channel gets a clean release.
  telegram:
    needs: [android, release]
    runs-on: ubuntu-latest
    # `vars.TELEGRAM_NOTIFY_ENABLED` defaults to empty in forks; set
    # `TELEGRAM_NOTIFY_ENABLED=1` as a repo variable to enable. In
    # the therealaleph origin we leave it on permanently via this
    # env fallback — the `|| ...` expression makes it default-on
    # when the secret is present.
    if: ${{ always() && needs.android.result == 'success' }}
    steps:
      - uses: actions/checkout@v4

      - uses: actions/download-artifact@v4
        with:
          name: mhrv-rs-android-universal
          path: apk

      - name: Post to Telegram
        env:
          BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
          CHAT_ID: ${{ secrets.TELEGRAM_CHAT_ID }}
        # Python over curl/bash so we don't have to fight curl's -F
        # value-interpretation rules. curl treats `-F "caption=<..."`
        # as "read the caption from file named ..." when the value
        # starts with `<`, which matches our `<b>` HTML-bold tags and
        # silently turns the whole job into a "file not found" exit
        # 26. Python stdlib has no such wart.
        run: |
          set -euo pipefail
          VER="${GITHUB_REF#refs/tags/v}"
          APK="apk/mhrv-rs-android-universal-v${VER}.apk"

          if [ -z "${BOT_TOKEN:-}" ] || [ -z "${CHAT_ID:-}" ]; then
            echo "::notice::TELEGRAM_BOT_TOKEN / TELEGRAM_CHAT_ID not set, skipping Telegram post"
            exit 0
          fi

          if [ ! -f "$APK" ]; then
            echo "::error::expected $APK to exist; got:"
            ls -la apk/
            exit 1
          fi

          python3 .github/scripts/telegram_release_notify.py \
            --apk "$APK" \
            --version "$VER" \
            --repo "$GITHUB_REPOSITORY" \
            --changelog "docs/changelog/v${VER}.md"