package platform

import (
	"git.apinb.com/heqiapp/platforms/backend/api/internal/impl"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/common"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
)

// Menu 是平台后台的静态菜单定义，不对应数据库表。
type Menu struct {
	Identity       string `json:"identity"`
	ParentIdentity string `json:"parent_identity,omitempty"`
	GroupCode      string `json:"group_code"`
	Name           string `json:"name"`
	Icon           string `json:"icon"`
	Path           string `json:"path"`
	SortNo         int    `json:"sort_no"`
	Status         int    `json:"status"`
}

// PlatformMenus 使用二维数据组织菜单；每一行表示一个菜单分组。
var PlatformMenus = [][]Menu{
	{
		{Identity: "dashboard", GroupCode: "dashboard", Name: "工作台", Icon: "icon-dashboard", Path: "/dashboard", SortNo: 10, Status: common.StatusEnable},
		{Identity: "dashboard_overview", ParentIdentity: "dashboard", GroupCode: "dashboard", Name: "数据概览", Path: "/dashboard/overview", SortNo: 1, Status: common.StatusEnable},
		{Identity: "dashboard_reports", ParentIdentity: "dashboard", GroupCode: "dashboard", Name: "统计报表", Path: "/dashboard/reports", SortNo: 2, Status: common.StatusEnable},
	},
	{
		{Identity: "organization", GroupCode: "organization", Name: "机构管理", Icon: "icon-storage", Path: "/organization", SortNo: 20, Status: common.StatusEnable},
		{Identity: "gas_basic", ParentIdentity: "organization", GroupCode: "organization", Name: "气站管理", Path: "/gas/gas-basic", SortNo: 1, Status: common.StatusEnable},
		{Identity: "delivery_basic", ParentIdentity: "organization", GroupCode: "organization", Name: "配送点管理", Path: "/delivery/delivery-basic", SortNo: 2, Status: common.StatusEnable},
	},
	{
		{Identity: "staff", GroupCode: "staff", Name: "工作人员管理", Icon: "icon-user-group", Path: "/staff", SortNo: 40, Status: common.StatusEnable},
		{Identity: "staff_add", ParentIdentity: "staff", GroupCode: "staff", Name: "新增工作人员", Path: "/staff/add", SortNo: 1, Status: common.StatusEnable},
		{Identity: "staff_installer", ParentIdentity: "staff", GroupCode: "staff", Name: "安装人员管理", Path: "/staff/installers", SortNo: 2, Status: common.StatusEnable},
		{Identity: "staff_delivery", ParentIdentity: "staff", GroupCode: "staff", Name: "配送人员管理", Path: "/staff/delivery", SortNo: 3, Status: common.StatusEnable},
		{Identity: "staff_operations", ParentIdentity: "staff", GroupCode: "staff", Name: "运维人员管理", Path: "/staff/operations", SortNo: 4, Status: common.StatusEnable},
	},
	{
		{Identity: "user", GroupCode: "user", Name: "用户管理", Icon: "icon-user", Path: "/user", SortNo: 50, Status: common.StatusEnable},
		{Identity: "user_account", ParentIdentity: "user", GroupCode: "user", Name: "用户账户", Path: "/user/user-account", SortNo: 1, Status: common.StatusEnable},
		{Identity: "user_address", ParentIdentity: "user", GroupCode: "user", Name: "用户地址", Path: "/user/user-address", SortNo: 2, Status: common.StatusEnable},
		{Identity: "user_service_relation", ParentIdentity: "user", GroupCode: "user", Name: "服务关系", Path: "/user/service-relation", SortNo: 3, Status: common.StatusEnable},
	},
	{
		{Identity: "device", GroupCode: "device", Name: "智能气阀管理", Icon: "icon-common", Path: "/product", SortNo: 60, Status: common.StatusEnable},
		{Identity: "product_type", ParentIdentity: "device", GroupCode: "device", Name: "类型管理", Path: "/product/product-type", SortNo: 1, Status: common.StatusEnable},
		{Identity: "product_warehouse", ParentIdentity: "device", GroupCode: "device", Name: "库房管理", Path: "/product/warehouse", SortNo: 2, Status: common.StatusEnable},
		{Identity: "product_info", ParentIdentity: "device", GroupCode: "device", Name: "智能气阀管理", Path: "/product/product-info", SortNo: 3, Status: common.StatusEnable},
	},
	{
		{Identity: "gasorder", GroupCode: "gasorder", Name: "气体配送订单管理", Icon: "icon-list", Path: "/gasorder", SortNo: 70, Status: common.StatusEnable},
		{Identity: "gasorder_contract", ParentIdentity: "gasorder", GroupCode: "gasorder", Name: "合同管理", Path: "/gasorder/contracts", SortNo: 1, Status: common.StatusEnable},
		{Identity: "gasorder_basic", ParentIdentity: "gasorder", GroupCode: "gasorder", Name: "配送订单", Path: "/gasorder/orders", SortNo: 2, Status: common.StatusEnable},
		{Identity: "gasorder_track", ParentIdentity: "gasorder", GroupCode: "gasorder", Name: "运行轨迹", Path: "/gasorder/tracks", SortNo: 3, Status: common.StatusEnable},
	},
	{
		{Identity: "ec", GroupCode: "ec", Name: "商城管理", Icon: "icon-gift", Path: "/ec", SortNo: 80, Status: common.StatusEnable},
		{Identity: "ec_category", ParentIdentity: "ec", GroupCode: "ec", Name: "商品分类", Path: "/ec/categories", SortNo: 1, Status: common.StatusEnable},
		{Identity: "ec_product", ParentIdentity: "ec", GroupCode: "ec", Name: "商品", Path: "/ec/products", SortNo: 2, Status: common.StatusEnable},
		{Identity: "ec_cart", ParentIdentity: "ec", GroupCode: "ec", Name: "购物车", Path: "/ec/carts", SortNo: 3, Status: common.StatusEnable},
		{Identity: "ec_order", ParentIdentity: "ec", GroupCode: "ec", Name: "商城订单", Path: "/ec/orders", SortNo: 4, Status: common.StatusEnable},
		{Identity: "ec_review", ParentIdentity: "ec", GroupCode: "ec", Name: "商品评价", Path: "/ec/reviews", SortNo: 5, Status: common.StatusEnable},
	},
	{
		{Identity: "wallet", GroupCode: "wallet", Name: "钱包管理", Icon: "icon-safe", Path: "/wallet", SortNo: 90, Status: common.StatusEnable},
		{Identity: "wallet_basic", ParentIdentity: "wallet", GroupCode: "wallet", Name: "钱包", Path: "/wallet/wallet-basic", SortNo: 1, Status: common.StatusEnable},
		{Identity: "wallet_bank", ParentIdentity: "wallet", GroupCode: "wallet", Name: "银行卡", Path: "/wallet/banks", SortNo: 2, Status: common.StatusEnable},
		{Identity: "wallet_payment", ParentIdentity: "wallet", GroupCode: "wallet", Name: "支付记录", Path: "/wallet/payments", SortNo: 3, Status: common.StatusEnable},
		{Identity: "wallet_record", ParentIdentity: "wallet", GroupCode: "wallet", Name: "钱包流水", Path: "/wallet/records", SortNo: 4, Status: common.StatusEnable},
		{Identity: "wallet_refund", ParentIdentity: "wallet", GroupCode: "wallet", Name: "退款记录", Path: "/wallet/refunds", SortNo: 5, Status: common.StatusEnable},
		{Identity: "wallet_apply_cash", ParentIdentity: "wallet", GroupCode: "wallet", Name: "提现申请", Path: "/wallet/apply-cash", SortNo: 6, Status: common.StatusEnable},
	},
	{
		{Identity: "finance", GroupCode: "finance", Name: "财务管理", Icon: "icon-bar-chart", Path: "/finance", SortNo: 100, Status: common.StatusEnable},
		{Identity: "fin_payment", ParentIdentity: "finance", GroupCode: "finance", Name: "支付记录", Path: "/finance/payments", SortNo: 1, Status: common.StatusEnable},
		{Identity: "fin_settlement", ParentIdentity: "finance", GroupCode: "finance", Name: "财务结算", Path: "/finance/settlements", SortNo: 2, Status: common.StatusEnable},
		{Identity: "fin_reconciliation", ParentIdentity: "finance", GroupCode: "finance", Name: "财务对账", Path: "/finance/reconciliations", SortNo: 3, Status: common.StatusEnable},
	},
	{
		{Identity: "content", GroupCode: "content", Name: "内容管理", Icon: "icon-file", Path: "/content", SortNo: 110, Status: common.StatusEnable},
		{Identity: "cms_content", ParentIdentity: "content", GroupCode: "content", Name: "内容", Path: "/content/contents", SortNo: 1, Status: common.StatusEnable},
	},
	{
		{Identity: "customer_service", GroupCode: "customer_service", Name: "客服管理", Icon: "icon-customer-service", Path: "/customer-service", SortNo: 120, Status: common.StatusEnable},
		{Identity: "cs_ticket", ParentIdentity: "customer_service", GroupCode: "customer_service", Name: "客服工单", Path: "/customer-service/tickets", SortNo: 1, Status: common.StatusEnable},
	},
	{
		{Identity: "platform", GroupCode: "platform", Name: "平台管理", Icon: "icon-settings", Path: "/platform", SortNo: 130, Status: common.StatusEnable},
		{Identity: "platform_account", ParentIdentity: "platform", GroupCode: "platform", Name: "平台账户", Path: "/platform/accounts", SortNo: 1, Status: common.StatusEnable},
		{Identity: "platform_role", ParentIdentity: "platform", GroupCode: "platform", Name: "平台角色", Path: "/platform/roles", SortNo: 2, Status: common.StatusEnable},
		{Identity: "platform_menu", ParentIdentity: "platform", GroupCode: "platform", Name: "平台菜单", Path: "/platform/menus", SortNo: 3, Status: common.StatusEnable},
	},
}

// AllPlatformMenus 返回静态菜单的扁平副本。
func AllPlatformMenus() []Menu {
	menus := make([]Menu, 0, len(PlatformMenus))
	for _, group := range PlatformMenus {
		menus = append(menus, group...)
	}
	return menus
}

// FindPlatformMenu 根据稳定 identity 查找静态菜单。
func FindPlatformMenu(identity string) (Menu, bool) {
	for _, menu := range AllPlatformMenus() {
		if menu.Identity == identity {
			return menu, true
		}
	}
	return Menu{}, false
}

// LoadPlatformMenus 返回角色获授权的静态菜单；root 默认拥有全部菜单。
func LoadPlatformMenus(roleCode string) ([]Menu, error) {
	menus := AllPlatformMenus()
	if roleCode == "root" {
		return menus, nil
	}

	var role models.PlatformRole
	if err := impl.DBService.Where("role_code = ? AND status = ?", roleCode, common.StatusEnable).First(&role).Error; err != nil {
		return nil, err
	}
	var identities []string
	if err := impl.DBService.Model(&models.PlatformRoleMenu{}).
		Where("platform_role_id = ?", role.ID).
		Pluck("menu_identity", &identities).Error; err != nil {
		return nil, err
	}
	allowed := make(map[string]struct{}, len(identities))
	for _, identity := range identities {
		allowed[identity] = struct{}{}
	}
	for _, menu := range menus {
		if _, ok := allowed[menu.Identity]; ok && menu.ParentIdentity != "" {
			allowed[menu.ParentIdentity] = struct{}{}
		}
	}
	filtered := make([]Menu, 0, len(menus))
	for _, menu := range menus {
		if _, ok := allowed[menu.Identity]; ok {
			filtered = append(filtered, menu)
		}
	}
	return filtered, nil
}