package routers

import (
	"net/http"
	"testing"

	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/platform"
	"github.com/gin-gonic/gin"
)

func TestEveryContractHasRegisteredRoute(t *testing.T) {
	engine := gin.New()
	RegisterPlatform("heqi", engine)
	routes := make(map[string]map[string]bool)
	for _, route := range engine.Routes() {
		if routes[route.Path] == nil {
			routes[route.Path] = make(map[string]bool)
		}
		routes[route.Path][route.Method] = true
	}
	for _, contract := range platform.ExpectedResources() {
		path := "/heqi/platform/v1" + contract.Path
		switch contract.Mode {
		case platform.ReadOnly:
			assertRouteMethods(t, routes, path, http.MethodGet)
			assertRouteMethods(t, routes, path+"/:identity", http.MethodGet)
			assertNoRouteMethods(t, routes, path, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
			assertNoRouteMethods(t, routes, path+"/:identity", http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
		case platform.AppendOnly:
			assertRouteMethods(t, routes, path, http.MethodGet, http.MethodPost)
			assertNoRouteMethods(t, routes, path, http.MethodPut, http.MethodPatch, http.MethodDelete)
		case platform.Editable:
			assertRouteMethods(t, routes, path, http.MethodGet, http.MethodPost)
			assertRouteMethods(t, routes, path+"/:identity", http.MethodGet, http.MethodPut)
			assertRouteMethods(t, routes, path+"/:identity/status", http.MethodPatch)
			assertNoRouteMethods(t, routes, path, http.MethodDelete)
			assertNoRouteMethods(t, routes, path+"/:identity", http.MethodDelete)
		default:
			assertRouteMethods(t, routes, path, http.MethodGet, http.MethodPost)
			assertRouteMethods(t, routes, path+"/:identity", http.MethodGet, http.MethodPut, http.MethodDelete)
			assertRouteMethods(t, routes, path+"/:identity/status", http.MethodPatch)
		}
	}
}

func TestPlatformGasRouteUsesGasBasic(t *testing.T) {
	engine := gin.New()
	RegisterPlatform("heqi", engine)

	for _, route := range engine.Routes() {
		if route.Path == "/heqi/platform/v1/gas/gas_station" {
			t.Fatal("gas station route must use gas_basic as its resource name")
		}
		if route.Method == "GET" && route.Path == "/heqi/platform/v1/gas/gas_basic" {
			return
		}
	}
	t.Fatal("gas_basic list route is not registered")
}

func TestPlatformOrganizationAndAccountRoutesExposeResourceCRUD(t *testing.T) {
	engine := gin.New()
	RegisterPlatform("heqi", engine)

	routes := make(map[string]map[string]bool)
	for _, route := range engine.Routes() {
		if routes[route.Path] == nil {
			routes[route.Path] = make(map[string]bool)
		}
		routes[route.Path][route.Method] = true
	}

	for _, resource := range []string{
		"/gas/gas_basic",
		"/gas/gas_account",
		"/delivery/delivery_basic",
		"/delivery/delivery_account",
		"/staff/account",
		"/staff/credential",
		"/user/account",
		"/user/address",
		"/user/service_relation",
		"/platform/platfrom_account",
		"/platform/platform_role",
		"/platform/platform_menu",
	} {
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource, http.MethodGet, http.MethodPost)
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource+"/:identity", http.MethodGet, http.MethodPut, http.MethodDelete)
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource+"/:identity/status", http.MethodPatch)
	}

	assertRouteMethods(t, routes, "/heqi/platform/v1/platform/platform_role/:identity/menu", http.MethodGet, http.MethodPut)
	assertRouteMethods(t, routes, "/heqi/platform/v1/platform/platform_role/:identity/menus", http.MethodPut)
}

func TestPlatformProductCommerceAndDeliveryRoutesFollowTheirContracts(t *testing.T) {
	engine := gin.New()
	RegisterPlatform("heqi", engine)

	routes := make(map[string]map[string]bool)
	for _, route := range engine.Routes() {
		if routes[route.Path] == nil {
			routes[route.Path] = make(map[string]bool)
		}
		routes[route.Path][route.Method] = true
	}

	for _, resource := range []string{
		"/ec/ec_category", "/ec/ec_product", "/ec/ec_product_attribute", "/ec/ec_product_image", "/ec/ec_cart", "/ec/ec_order", "/ec/ec_order_item", "/ec/ec_review",
		"/delivery/delivery_task", "/delivery/delivery_track",
	} {
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource, http.MethodGet, http.MethodPost)
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource+"/:identity", http.MethodGet, http.MethodPut, http.MethodDelete)
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource+"/:identity/status", http.MethodPatch)
	}

	trackPoint := "/heqi/platform/v1/delivery/delivery_track_point"
	assertRouteMethods(t, routes, trackPoint, http.MethodGet)
	assertRouteMethods(t, routes, trackPoint+"/:identity", http.MethodGet)
	assertNoRouteMethods(t, routes, trackPoint, http.MethodPost)
	assertNoRouteMethods(t, routes, trackPoint+"/:identity", http.MethodPut, http.MethodDelete)
	assertNoRouteMethods(t, routes, trackPoint+"/:identity/status", http.MethodPatch)

	for _, resource := range []string{"/product_type", "/product_warehouse", "/product_info", "/product_repair"} {
		path := "/heqi/platform/v1" + resource
		assertRouteMethods(t, routes, path, http.MethodGet, http.MethodPost)
		assertRouteMethods(t, routes, path+"/:identity", http.MethodGet, http.MethodPut)
		assertRouteMethods(t, routes, path+"/:identity/status", http.MethodPatch)
		assertNoRouteMethods(t, routes, path+"/:identity", http.MethodDelete)
	}
	owner := "/heqi/platform/v1/product_owner"
	assertRouteMethods(t, routes, owner, http.MethodGet, http.MethodPost)
	assertRouteMethods(t, routes, owner+"/:identity", http.MethodGet)
	assertNoRouteMethods(t, routes, owner+"/:identity", http.MethodPut, http.MethodPatch, http.MethodDelete)

	for _, resource := range []string{
		"/safety/safe_rule", "/safety/safe_event", "/safety/safe_inspection",
		"/safety/safe_event/:identity/disposals",
	} {
		path := "/heqi/platform/v1" + resource
		assertNoRouteMethods(t, routes, path, http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
		assertNoRouteMethods(t, routes, path+"/:identity", http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
		assertNoRouteMethods(t, routes, path+"/:identity/status", http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
	}
}

func TestPlatformFinanceContentRoutesFollowTheirContracts(t *testing.T) {
	engine := gin.New()
	RegisterPlatform("heqi", engine)

	routes := make(map[string]map[string]bool)
	for _, route := range engine.Routes() {
		if routes[route.Path] == nil {
			routes[route.Path] = make(map[string]bool)
		}
		routes[route.Path][route.Method] = true
	}

	for _, resource := range []string{
		"/finance/fin_payment", "/finance/fin_settlement", "/finance/fin_reconciliation",
		"/content/cms_content", "/customer_service/cs_ticket",
	} {
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource, http.MethodGet, http.MethodPost)
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource+"/:identity", http.MethodGet, http.MethodPut, http.MethodDelete)
		assertRouteMethods(t, routes, "/heqi/platform/v1"+resource+"/:identity/status", http.MethodPatch)
	}

	for _, resource := range []string{
		"/wallet/wallet", "/wallet/wallet_ledger", "/wallet/wallet_recharge", "/wallet/wallet_withdrawal",
	} {
		path := "/heqi/platform/v1" + resource
		assertRouteMethods(t, routes, path, http.MethodGet)
		assertRouteMethods(t, routes, path+"/:identity", http.MethodGet)
		for _, method := range []string{http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete} {
			if routes[path][method] || routes[path+"/:identity"][method] {
				t.Errorf("read-only resource %s unexpectedly permits %s", resource, method)
			}
		}
	}

	for _, resource := range []string{
		"/content/cnt_content", "/notification/ntf_template",
		"/report/report", "/report/report_item", "/report/report_metric_snapshot",
		"/audit/audit_operation_log", "/audit/audit_export_log", "/audit/audit_approval",
	} {
		path := "/heqi/platform/v1" + resource
		assertNoRouteMethods(t, routes, path, http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
		assertNoRouteMethods(t, routes, path+"/:identity", http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
	}
	assertNoRouteMethods(t, routes, "/heqi/platform/v1/audit/audit_approval/:identity/approve", http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete)
}

func assertRouteMethods(t *testing.T, routes map[string]map[string]bool, path string, methods ...string) {
	t.Helper()
	for _, method := range methods {
		if !routes[path][method] {
			t.Errorf("route %s %s is not registered", method, path)
		}
	}
}

func assertNoRouteMethods(t *testing.T, routes map[string]map[string]bool, path string, methods ...string) {
	t.Helper()
	for _, method := range methods {
		if routes[path][method] {
			t.Errorf("route %s %s must not be registered", method, path)
		}
	}
}