name: Build

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*'

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.26'
          cache: true

      - name: Build binary
        run: |
          set -euo pipefail
          version=$(tr -d '[:space:]' < VERSION)
          echo "Building chat-bot $version"
          go build \
            -trimpath \
            -ldflags "-s -w -X main.version=$version" \
            -o bin/chat-bot \
            ./cmd/chat-bot

      - name: Sanity check
        run: ./bin/chat-bot version

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: chat-bot-${{ github.sha }}
          path: bin/chat-bot
          retention-days: 14

      - name: Attach to release
        if: startsWith(github.ref, 'refs/tags/')
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if gh release view "${{ github.ref_name }}" >/dev/null 2>&1; then
            gh release upload "${{ github.ref_name }}" bin/chat-bot --clobber
            echo "Attached bin/chat-bot to ${{ github.ref_name }}"
          else
            echo "No release for ${{ github.ref_name }} (tag has [skip-release] or release not created yet), skipping attachment"
          fi