#!/usr/bin/env bash

# ==================== 配置 ====================
REGISTRY="uat.sf.dockerhub.domain"
NAMESPACE="fein-namespace"     # TODO: 改成你的命名空间
IMAGE_NAME="myapp"             # TODO: 改成你的镜像名
# ===============================================

IMAGE="${REGISTRY}/${NAMESPACE}/${IMAGE_NAME}"
TAG_FILE=".image-tag"
CTR="verify-$$"

info() { echo "[INFO] $*"; }
die()  { echo "[ERROR] $*" >&2; exit 1; }

cd "$(dirname "$0")"

build() {
    [ -f Dockerfile ] || die "没有 Dockerfile"
    local tag
    tag="$(date +%Y%m%d%H%M%S)"
    info "构建 ${IMAGE}:${tag}"
    docker build -t "${IMAGE}:${tag}" .
    echo "${tag}" > "${TAG_FILE}"
}

read_tag() {
    local TAG="$(cat "${TAG_FILE}" 2>/dev/null)"
    if [ -z "${TAG}" ]; then
        die "${TAG_FILE} 内容为空，请进行构建"
    fi
    echo $TAG
}

verify() {
    local TAG
    TAG="$(read_tag)"
    info "验证 ${IMAGE}:${TAG}"
    docker run -d --name "${CTR}" "${IMAGE}:${TAG}" >/dev/null
    sleep 5

    if [ "$(docker ps -q -f name="${CTR}" | wc -l)" -gt 0 ]; then
        info "容器存活，日志:"
        docker logs --tail 20 "${CTR}"
        info "✅ 验证通过"
    else
        docker logs --tail 50 "${CTR}"
        die "❌ 容器未存活"
    fi

    docker rm -f "${CTR}" >/dev/null
}

push() {
    local TAG
    TAG="$(read_tag)"
    info "推送 ${IMAGE}:${TAG}"
    docker push "${IMAGE}:${TAG}"
}

case "${1:-}" in
    build) build ;;
    verify) verify ;;
    push)  push ;;
    *)     die "用法: ./build.sh build|verify|push" ;;
esac