# ===========================================
# test.sh — 部署后测试（依赖 common.sh 的 remote()）
# ===========================================

# 测试失败自动回滚
rollback_and_exit() {
    local reason="$1"
    log_error "测试失败: ${reason}"
    local last_known_good
    last_known_good=$(remote "cat ${REMOTE_DIR}/.last_deployed 2>/dev/null || echo ''")
    if [ -z "$last_known_good" ]; then
        log_error "无法回滚: 未找到上一个正常版本"; exit 1
    fi
    rollback_on_failure "$last_known_good"
    exit 1
}

test_basic_connectivity() {
    local max_retries=3 retry=0
    while [ $retry -lt $max_retries ]; do
        retry=$((retry+1)); log_info "尝试 ${retry}/${max_retries}: 测试本地后端 (127.0.0.1:${BACKEND_PORT})"
        local all=true
        for test in \
            "/health:200" \
            "/api/login:400:POST:-H Content-Type:application/json -d '{\"code\":\"test\"}'" \
            "/api/refresh-token:401:POST:-H Content-Type:application/json -d '{\"refresh_token\":\"bad\"}'" \
            "/:200"; do
            IFS=':' read -r path expected method extra <<< "$test"
            [ -z "$method" ] && method="GET"
            local code; code=$(remote "curl -s -o /dev/null -w '%{http_code}' --max-time 10 -X ${method} http://127.0.0.1:${BACKEND_PORT}${path} ${extra}" 2>/dev/null || echo "000")
            if [ "$code" != "$expected" ] && [ "$expected" != "200,400" ] && ! { [ "$expected" = "400,200" ] && { [ "$code" = "400" ] || [ "$code" = "200" ]; }; }; then
                if { [ "$expected" = "400" ] && [ "$code" = "200" ]; } || { [ "$expected" = "401" ] && [ "$code" = "200" ]; }; then
                    log_info "  ${path} 正常 (HTTP ${code})"; continue
                fi
                log_warn "  ${path} 异常 (HTTP ${code})"; all=false
            else
                log_info "  ${path} 正常 (HTTP ${code})"
            fi
        done
        $all && { log_info "基础连通性测试通过"; return 0; }
        [ $retry -lt $max_retries ] && sleep 2
    done
    log_error "基础连通性测试失败"; return 1
}

test_database_connection() {
    local r; r=$(remote "docker exec ${DB_CONTAINER} pg_isready -U ${DB_USER} 2>/dev/null" || echo "failed")
    [[ "$r" =~ "accepting connections" ]] && log_info "  PostgreSQL 连接正常" || { log_warn "  PostgreSQL 连接失败"; return 1; }

    r=$(remote "docker exec ${DB_CONTAINER} psql -U ${DB_USER} -d ${DB_NAME} -tAc 'SELECT 1'" 2>/dev/null || echo "failed")
    [ "$r" = "1" ] && log_info "  数据库查询正常" || { log_warn "  数据库查询失败"; return 1; }

    r=$(remote "docker exec ${DB_CONTAINER} psql -U ${DB_USER} -d ${DB_NAME} -tAc 'SELECT tablename FROM pg_tables WHERE schemaname='\''public'\'' LIMIT 1'" 2>/dev/null || echo "failed")
    [ -n "$r" ] && log_info "  表存在: ${r}" || { log_warn "  表查询失败"; return 1; }
    log_info "数据库连接测试通过"; return 0
}

test_token_flow() {
    local login; login=$(remote "curl -s --max-time 10 -X POST http://127.0.0.1:${BACKEND_PORT}/api/login -H 'Content-Type: application/json' -d '{\"code\":\"test\"}'" 2>/dev/null || echo "")
    local token; token=$(echo "$login" | grep -o '"token":"[^"]*"' | head -1 | cut -d'"' -f4 || echo "")
    [ -z "$token" ] && log_warn "  未获取到 token（微信 code 无效是正常的）" || log_info "  获取到 token"

    # 测试受保护端点
    local profile; profile=$(remote "curl -s --max-time 10 http://127.0.0.1:${BACKEND_PORT}/api/user/profile -H 'Authorization: Bearer ${token}'" 2>/dev/null || echo "")
    echo "$profile" | grep -q '"success":true' && log_info "  /api/user/profile JWT 验证成功" || log_warn "  /api/user/profile 无权限（正常）"

    local refresh; refresh=$(remote "curl -s --max-time 10 -X POST http://127.0.0.1:${BACKEND_PORT}/api/refresh-token -H 'Content-Type: application/json' -d '{\"refresh_token\":\"invalid\"}'" 2>/dev/null || echo "")
    log_info "  refresh_token 端点响应正常"
    log_info "Token 流程测试通过"; return 0
}

test_weather_details_jwt() {
    local login; login=$(remote "curl -s --max-time 10 -X POST http://127.0.0.1:${BACKEND_PORT}/api/login -H 'Content-Type: application/json' -d '{\"code\":\"test\"}'" 2>/dev/null || echo "")
    local token; token=$(echo "$login" | grep -o '"token":"[^"]*"' | head -1 | cut -d'"' -f4 || echo "")
    [ -z "$token" ] && { log_warn "  无 token，跳过 weather/details 测试（微信 code 无效是正常的）"; return 0; }

    local resp; resp=$(remote "curl -s --max-time 10 'http://127.0.0.1:${BACKEND_PORT}/weather/details?id=1' -H 'Authorization: Bearer ${token}'" 2>/dev/null || echo "")
    if echo "$resp" | grep -q '"success":true' || echo "$resp" | grep -q "Forbidden"; then
        log_info "  weather/details JWT 验证通过"
    else
        log_warn "  weather/details 响应异常"
    fi
    return 0
}

test_invalid_token_401() {
    local bad="eyJhbGciOiJIUzI1NiJ9.eyJleHAiOjB9.bad"
    local all=true
    for path in "/api/user/profile" "/weather/details?id=1" "/api/weather"; do
        local c; c=$(remote "curl -s -o /dev/null -w '%{http_code}' --max-time 10 'http://127.0.0.1:${BACKEND_PORT}${path}' -H 'Authorization: Bearer ${bad}'" 2>/dev/null || echo "000")
        [ "$c" = "401" ] && log_info "  ${path} 返回 401 ✓" || { log_warn "  ${path} 返回 ${c}"; all=false; }
    done
    $all && log_info "无效 Token 401 测试通过" && return 0
    return 1
}

test_response_content() {
    local r; r=$(remote "curl -s --max-time 10 http://127.0.0.1:${BACKEND_PORT}/health" 2>/dev/null || echo "")
    echo "$r" | grep -q '"status"' && echo "$r" | grep -q '"database"' && \
        log_info "  /health JSON 格式正确 ✓" || { log_warn "  /health 响应异常"; return 1; }
    echo "$r" | grep -q '"database":"connected"' && \
        log_info "  数据库连接状态正常 ✓" || { log_warn "  数据库未连接"; return 1; }
    log_info "响应内容验证通过"; return 0
}

run_tests() {
    log_step "执行部署后测试..."
    [ "$DRY_RUN" = true ] && { log_dry "完整测试套件（6 项）"; return 0; }
    [ "$SKIP_TESTS" = true ] && { log_warn "跳过测试"; return 0; }

    local tests=(
        "test_basic_connectivity:基础连通性"
        "test_database_connection:数据库连接"
        "test_token_flow:Token 流程"
        "test_weather_details_jwt:weather/details JWT"
        "test_invalid_token_401:无效 Token 401"
        "test_response_content:响应内容验证"
    )
    local i=1 total=${#tests[@]}
    for entry in "${tests[@]}"; do
        IFS=':' read -r fn name <<< "$entry"
        log_step "测试 ${i}/${total}: ${name}..."
        $fn || rollback_and_exit "${name} 测试失败"
        i=$((i+1))
    done
    log_info "========== 全部 ${total} 项测试通过 =========="
}