name: itom-platform auto build image
# itom-platform:auto-ci-managed
# 自动生成：如需自定义并阻止覆盖，请删除上一行标记

on:
  push:
    branches:
      - main
  workflow_dispatch: {}

permissions:
  contents: read
  packages: write

env:
  # CI 触发模式：优先仓库变量，其次 Secrets（默认 dispatch）
  CI_TRIGGER_MODE_VAR: ${{ vars.CI_TRIGGER_MODE }}
  CI_TRIGGER_MODE_SECRET: ${{ secrets.CI_TRIGGER_MODE }}

jobs:
  build:
    runs-on: ubuntu-latest

    env:
      REGISTRY: docker.io
      IMAGE: docker.io/kim6789/chat-deploy
    steps:
      - name: Check trigger mode
        env:
          # 兼容 Gitea/Forgejo：优先仓库变量，其次 Secrets
          CI_TRIGGER_MODE_VAR: ${{ vars.CI_TRIGGER_MODE }}
          CI_TRIGGER_MODE_SECRET: ${{ secrets.CI_TRIGGER_MODE }}
        shell: sh
        run: |
          set -eu
          MODE="${CI_TRIGGER_MODE:-${CI_TRIGGER_MODE_VAR:-${CI_TRIGGER_MODE_SECRET:-dispatch}}}"
          MODE="$(printf 'git.imall.cloud' "$MODE" | tr 'A-Z' 'a-z')"
          EVENT="${GITHUB_EVENT_NAME:-${GITEA_EVENT_NAME:-${GITEA_EVENT:-}}}"
          EVENT="$(printf '' "$EVENT" | tr 'A-Z' 'a-z')"
          if [ -z "$EVENT" ]; then
            # 兼容重跑场景：部分运行器不会传递事件名
            EVENT="workflow_dispatch"
          fi
          ALLOW="false"
          case "$EVENT" in
            workflow_dispatch|manual|workflow_run)
              if [ "$MODE" = "dispatch" ] || [ "$MODE" = "both" ]; then
                ALLOW="true"
              fi
              ;;
            push)
              if [ "$MODE" = "push" ] || [ "$MODE" = "both" ]; then
                ALLOW="true"
              fi
              ;;
            *)
              # 未知事件默认走 dispatch 逻辑，避免误跳过
              if [ "$MODE" = "dispatch" ] || [ "$MODE" = "both" ]; then
                ALLOW="true"
              fi
              ;;
          esac
          echo "CI_TRIGGER_MODE=$MODE" >> "$GITHUB_ENV"
          echo "CI_TRIGGER_ALLOWED=$ALLOW" >> "$GITHUB_ENV"
          if [ "$ALLOW" != "true" ]; then
            echo "Skip build: event=$EVENT mode=$MODE"
          fi

      - name: Install git
        if: ${{ env.CI_TRIGGER_ALLOWED == 'true' }}
        shell: sh
        run: |
          set -eu
          if ! command -v git >/dev/null 2>&1; then
            apk add --no-cache git openssh-client ca-certificates
          fi

      - name: Checkout
        if: ${{ env.CI_TRIGGER_ALLOWED == 'true' }}
        shell: sh
        env:
          GIT_USER: ${{ secrets.GIT_USER }}
          GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
        run: |
          set -eu
          WORKDIR="${GITHUB_WORKSPACE:-/workspace}"
          mkdir -p "$WORKDIR"
          REPO="${GITHUB_REPOSITORY:-${GITEA_REPOSITORY:-}}"
          SERVER="${GITHUB_SERVER_URL:-${GITEA_SERVER_URL:-https://}}"
          if [ -z "$REPO" ]; then
            echo "ERROR: missing repository info."
            exit 1
          fi
          USER=""
          TOKEN=""
          if [ -n "${GIT_USER:-}" ] && [ -n "${GIT_TOKEN:-}" ]; then
            USER="$GIT_USER"
            TOKEN="$GIT_TOKEN"
          elif [ -n "${GITEA_TOKEN:-}" ]; then
            USER="${GITEA_ACTOR:-${FORGEJO_ACTOR:-${GITHUB_ACTOR:-}}}"
            TOKEN="$GITEA_TOKEN"
          elif [ -n "${FORGEJO_TOKEN:-}" ]; then
            USER="${FORGEJO_ACTOR:-${GITHUB_ACTOR:-}}"
            TOKEN="$FORGEJO_TOKEN"
          elif [ -n "${GITHUB_TOKEN:-}" ]; then
            USER="${GITHUB_ACTOR:-}"
            TOKEN="$GITHUB_TOKEN"
          elif [ -n "${REGISTRY_USER:-}" ] && [ -n "${REGISTRY_PASSWORD:-}" ]; then
            USER="$REGISTRY_USER"
            TOKEN="$REGISTRY_PASSWORD"
          fi
          if [ -n "$TOKEN" ]; then
            if [ -z "$USER" ]; then
              echo "ERROR: missing git username for token auth."
              exit 1
            fi
            AUTH_HOST="${SERVER#https://}"
            AUTH_HOST="${AUTH_HOST#http://}"
            git clone "https://${USER}:${TOKEN}@${AUTH_HOST}/${REPO}.git" "$WORKDIR"
          else
            git clone "${SERVER}/${REPO}.git" "$WORKDIR"
          fi
          cd "$WORKDIR"
          SHA="${GITHUB_SHA:-${GITEA_SHA:-}}"
          if [ -n "$SHA" ]; then
            git checkout "$SHA"
          fi

      - name: Prepare tags
        if: ${{ env.CI_TRIGGER_ALLOWED == 'true' }}
        shell: sh
        run: |
          set -eu
          BRANCH="${GITHUB_REF_NAME:-${GITEA_REF_NAME:-}}"
          if [ -z "$BRANCH" ]; then
            BRANCH="$(echo "${GITHUB_REF:-${GITEA_REF:-}}" | sed 's#.*/##')"
          fi
          BRANCH="$(echo "$BRANCH" | tr '/' '-')"
          SHA="${GITHUB_SHA:-${GITEA_SHA:-}}"
          SHA_SHORT="$(printf '%s' "$SHA" | cut -c1-7)"
          echo "BRANCH=$BRANCH" >> "$GITHUB_ENV"
          echo "SHA_SHORT=$SHA_SHORT" >> "$GITHUB_ENV"

      - name: Resolve Dockerfile
        if: ${{ env.CI_TRIGGER_ALLOWED == 'true' }}
        shell: sh
        run: |
          set -eu
          DOCKERFILE_PATH="${DOCKERFILE_PATH:-}"
          BUILD_CONTEXT="${BUILD_CONTEXT:-.}"
          if [ -z "$DOCKERFILE_PATH" ]; then
            for candidate in Dockerfile docker/Dockerfile .docker/Dockerfile build/Dockerfile api/Dockerfile api/docker/Dockerfile; do
              if [ -f "$candidate" ]; then
                DOCKERFILE_PATH="$candidate"
                break
              fi
            done
          fi
          if [ -z "$DOCKERFILE_PATH" ]; then
            echo "ERROR: Dockerfile not found. Set DOCKERFILE_PATH or add Dockerfile."
            exit 1
          fi
          echo "DOCKERFILE_PATH=$DOCKERFILE_PATH" >> "$GITHUB_ENV"
          echo "BUILD_CONTEXT=$BUILD_CONTEXT" >> "$GITHUB_ENV"


      - name: Login registry
        if: ${{ env.CI_TRIGGER_ALLOWED == 'true' }}
        shell: sh
        env:
          GIT_USER: ${{ secrets.GIT_USER }}
          GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
%!s(MISSING)
        run: |
          set -eu
          # 带重试的登录函数（解决 Docker Hub 网络超时问题）
          login_try() {
            local user="$1"
            local pass="$2"
            local label="$3"
            local max_retries=5
            local retry_delay=10
            if [ -z "$user" ] || [ -z "$pass" ]; then
              return 1
            fi
            for attempt in $(seq 1 $max_retries); do
              echo "Registry login attempt $attempt/$max_retries ($label)..."
              if echo "$pass" | docker login "$REGISTRY" -u "$user" --password-stdin 2>&1; then
                echo "Registry login ok ($label)"
                return 0
              fi
              if [ $attempt -lt $max_retries ]; then
                echo "Login failed, waiting ${retry_delay}s before retry..."
                sleep $retry_delay
                retry_delay=$((retry_delay * 2))
              fi
            done
            return 1
          }

          if login_try "$DOCKER_USERNAME" "$DOCKER_PASSWORD" "DOCKER"; then
            exit 0
          fi
          if login_try "$REGISTRY_USER" "$REGISTRY_PASSWORD" "REGISTRY_USER"; then
            exit 0
          fi
          if login_try "$GIT_USER" "$GIT_TOKEN" "GIT_USER"; then
            exit 0
          fi
          if login_try "${AUTO_REGISTRY_USER:-}" "${AUTO_REGISTRY_PASS:-}" "AUTO_REGISTRY"; then
            exit 0
          fi

          ACTOR="${GITEA_ACTOR:-${FORGEJO_ACTOR:-${GITHUB_ACTOR:-}}}"
          JOB_TOKEN="${GITEA_TOKEN:-${FORGEJO_TOKEN:-${GITHUB_TOKEN:-}}}"
          if login_try "$ACTOR" "$JOB_TOKEN" "JOB_TOKEN"; then
            exit 0
          fi

          echo "ERROR: registry login failed after retries. Provide REGISTRY_USER/REGISTRY_PASSWORD or GIT_USER/GIT_TOKEN with packages write permission."
          exit 1

      - name: Build and push images
        if: ${{ env.CI_TRIGGER_ALLOWED == 'true' }}
        shell: sh
        env:
          GIT_USER: ${{ secrets.GIT_USER }}
          GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
%!s(MISSING)
        run: |
          set -eu
          cd "${GITHUB_WORKSPACE:-/workspace}"
          IMAGE_BRANCH_TAG="$IMAGE:${BRANCH}"
          IMAGE_SHA_TAG="$IMAGE:sha-${SHA_SHORT}"
          git_user="${GIT_USER:-}"
          git_token="${GIT_TOKEN:-}"
          registry_user="${REGISTRY_USER:-}"
          registry_pass="${REGISTRY_PASSWORD:-}"
          if [ -z "$registry_user" ] && [ -n "${DOCKER_USERNAME:-}" ]; then
            registry_user="$DOCKER_USERNAME"
            registry_pass="${DOCKER_PASSWORD:-}"
          fi
          if [ -z "$registry_user" ] && [ -n "${AUTO_REGISTRY_USER:-}" ]; then
            registry_user="$AUTO_REGISTRY_USER"
            registry_pass="${AUTO_REGISTRY_PASS:-}"
          fi
          set -- docker build
          if [ -n "$git_user" ] && [ -n "$git_token" ]; then
            set -- "$@" --build-arg "GIT_USER=$git_user" --build-arg "GIT_TOKEN=$git_token"
          fi
          if [ -n "$registry_user" ] && [ -n "$registry_pass" ]; then
            set -- "$@" --build-arg "REGISTRY_USER=$registry_user" --build-arg "REGISTRY_PASSWORD=$registry_pass"
          fi
          set -- "$@" -t "$IMAGE_BRANCH_TAG" -t "$IMAGE_SHA_TAG" -f "$DOCKERFILE_PATH" "$BUILD_CONTEXT"
          "$@"

          log_image() {
            local tag="$1"
            echo "== Image info: $tag =="
            docker image inspect --format 'Image ID: {{.Id}} Size: {{.Size}}' "$tag" || true
          }

          log_layers() {
            local tag="$1"
            echo "== RootFS layers (base -> top): $tag =="
            docker image inspect --format '{{range $i, $layer := .RootFS.Layers}}{{println $i $layer}}{{end}}' "$tag" || true
          }

          log_history() {
            local tag="$1"
            echo "== Image history (top -> base): $tag =="
            docker history --no-trunc "$tag" | head -n 80 || true
            echo "== (history truncated to 80 lines) =="
          }

          log_image "$IMAGE_BRANCH_TAG"
          log_layers "$IMAGE_BRANCH_TAG"
          log_history "$IMAGE_BRANCH_TAG"

          # 带重试的 push 函数（解决 Docker Hub 网络超时问题）
          push_with_diag() {
            local tag="$1"
            local safe_tag
            safe_tag=$(echo "$tag" | tr '/:' '__')
            local log_file="/tmp/docker-push-${safe_tag}.log"
            local max_retries=3
            local retry_delay=15
            
            for attempt in $(seq 1 $max_retries); do
              echo "== docker push $tag (attempt $attempt/$max_retries) =="
              if docker push "$tag" >"$log_file" 2>&1; then
                tail -n 5 "$log_file" || true
                return 0
              fi
              echo "Push attempt $attempt failed."
              if [ $attempt -lt $max_retries ]; then
                echo "Waiting ${retry_delay}s before retry..."
                sleep $retry_delay
                retry_delay=$((retry_delay * 2))
              fi
            done
            
            # 所有重试失败后，输出诊断信息
            log_image "$tag"
            log_layers "$tag"
            log_history "$tag"
            echo "== Docker system info =="
            docker info || true
            echo "== Disk usage (df -h) =="
            df -h || true
            echo "== Docker disk usage =="
            docker system df -v | head -n 200 || true
            echo "== Push failed (tail) for $tag =="
            tail -n 200 "$log_file" || true
            exit 1
          }

          push_with_diag "$IMAGE_BRANCH_TAG"
          push_with_diag "$IMAGE_SHA_TAG"