//
//  PushNotificationTests.swift
//  suixinkanTests
//
//  Created by Codex on 2026/6/26.
//

import Foundation
import XCTest
@testable import suixinkan_ios

/// 推送链路测试，覆盖 APNs token、payload 解析、token 上报和通知路由。
@MainActor
final class PushNotificationTests: XCTestCase {
    func testAPNsDeviceTokenUsesLowercaseHexString() {
        let token = APNsDeviceToken.hexString(from: Data([0x00, 0x0f, 0x10, 0xab, 0xff]))

        XCTAssertEqual(token, "000f10abff")
    }

    func testPushPayloadRoutesTopLevelFields() {
        XCTAssertEqual(PushPayload(userInfo: ["type": "1"]).route, .payment)
        XCTAssertEqual(PushPayload(userInfo: ["route": "verification_order"]).route, .verificationOrder)
        XCTAssertEqual(PushPayload(userInfo: ["uri": "/scenic-queue"]).route, .queue)
        XCTAssertEqual(PushPayload(userInfo: ["action": "task_management"]).route, .task)
        XCTAssertEqual(PushPayload(userInfo: ["route": "photographer_orders"]).route, .order)
    }

    func testPushPayloadRoutesNestedJSONString() {
        let payload = PushPayload(userInfo: [
            "extras": #"{"data":{"uri":"message_center","title":"系统消息"}}"#
        ])

        XCTAssertEqual(payload.route, .messageCenter)
    }

    func testPushPayloadRoutesNestedDictionaryAndChineseKeywords() {
        let payload = PushPayload(userInfo: [
            "data": [
                "extra": [
                    "action": "叫号提醒"
                ]
            ]
        ])

        XCTAssertEqual(payload.route, .queue)
    }

    func testPushPayloadFallsBackToMessageCenter() {
        let payload = PushPayload(userInfo: ["title": "系统消息"])

        XCTAssertEqual(payload.route, .messageCenter)
    }

    func testRegisterPushTokenUsesCurrentBackendEndpointAndLegacyQueryName() async throws {
        let session = PushRecordingURLSession()
        let api = PushAPI(client: APIClient(session: session))

        try await api.registerJPushId("000f10abff")

        let request = try XCTUnwrap(session.requests.first)
        XCTAssertEqual(request.httpMethod, "POST")
        XCTAssertEqual(request.url?.path, "/api/app/user/register-jpush-id")
        XCTAssertEqual(queryItems(from: request)["jpush_reg_id"], "000f10abff")
    }

    func testPushManagerRoutesHomeDestinationsThroughHomeNavigationStack() {
        let services = AppServices(apiClient: APIClient(session: PushRecordingURLSession()))
        let host = PushNavigationHost(services: services)
        let manager = pushManager(navigator: services.appNavigator)
        services.appNavigator.attach(host: host)

        manager.handleRemoteNotification(PushPayload(userInfo: ["route": "payment_qr"]))
        XCTAssertEqual(host.selectedTab, .home)
        XCTAssertTrue(host.navigationController(for: .home)?.viewControllers.last is PaymentCollectionViewController)

        manager.handleRemoteNotification(PushPayload(userInfo: ["route": "task_management"]))
        XCTAssertTrue(host.navigationController(for: .home)?.viewControllers.last is TaskManagementViewController)
        XCTAssertEqual(host.navigationController(for: .home)?.viewControllers.count, 2)

        manager.handleRemoteNotification(PushPayload(userInfo: ["uri": "/scenic-queue"]))
        XCTAssertTrue(host.navigationController(for: .home)?.viewControllers.last is QueueManagementViewController)
        XCTAssertEqual(host.navigationController(for: .home)?.viewControllers.count, 2)

        manager.handleRemoteNotification(PushPayload(userInfo: ["title": "未知通知"]))
        XCTAssertTrue(host.navigationController(for: .home)?.viewControllers.last is MessageCenterViewController)
        XCTAssertEqual(host.navigationController(for: .home)?.viewControllers.count, 2)
    }

    func testPushManagerRoutesOrdersEntry() {
        let services = AppServices(apiClient: APIClient(session: PushRecordingURLSession()))
        let host = PushNavigationHost(services: services)
        let manager = pushManager(navigator: services.appNavigator)
        services.appNavigator.attach(host: host)

        manager.handleRemoteNotification(PushPayload(userInfo: ["route": "photographer_orders"]))
        XCTAssertEqual(host.selectedTab, .orders)
        XCTAssertEqual(host.appliedOrdersEntry, .storeOrders)

        manager.handleRemoteNotification(PushPayload(userInfo: ["route": "verification_order"]))
        XCTAssertEqual(host.selectedTab, .orders)
        XCTAssertEqual(host.appliedOrdersEntry, .verificationOrders)
    }

    private func pushManager(navigator: AppNavigator) -> PushNotificationManager {
        let session = AppSession()
        let manager = PushNotificationManager()
        manager.configure(
            api: PushAPI(client: APIClient(session: PushRecordingURLSession())),
            session: session,
            navigator: navigator
        )
        return manager
    }
}

/// 推送路由单测专用导航宿主。
@MainActor
private final class PushNavigationHost: AppNavigationHost {
    private var controllers: [AppTab: TabNavigationController] = [:]
    var selectedTab: AppTab = .home
    var appliedOrdersEntry: OrdersEntry?

    /// 初始化所有 Tab 导航栈。
    init(services: AppServices) {
        for tab in AppTab.allCases {
            controllers[tab] = TabNavigationController(tab: tab, services: services)
        }
    }

    /// 选中指定主 Tab。
    func selectTab(_ tab: AppTab) {
        selectedTab = tab
    }

    /// 返回指定 Tab 的导航控制器。
    func navigationController(for tab: AppTab) -> TabNavigationController? {
        controllers[tab]
    }

    /// 返回当前选中 Tab 的导航控制器。
    func selectedNavigationController() -> TabNavigationController? {
        controllers[selectedTab]
    }

    /// 重置全部 Tab 导航栈。
    func resetAllStacks() {
        for controller in controllers.values {
            controller.popToRootViewController(animated: false)
        }
        selectedTab = .home
    }

    /// 记录订单入口状态。
    func applyOrdersEntry(_ entry: OrdersEntry, scannedCode: String?) {
        appliedOrdersEntry = entry
    }
}

private final class PushRecordingURLSession: URLSessionProtocol {
    private(set) var requests: [URLRequest] = []

    func data(for request: URLRequest) async throws -> (Data, URLResponse) {
        requests.append(request)
        let data = #"{"code":100000,"msg":"success","data":{}}"#.data(using: .utf8)!
        let response = HTTPURLResponse(url: request.url!, statusCode: 200, httpVersion: nil, headerFields: nil)!
        return (data, response)
    }
}

private func queryItems(from request: URLRequest) -> [String: String] {
    guard let url = request.url,
          let components = URLComponents(url: url, resolvingAgainstBaseURL: false)
    else {
        return [:]
    }
    return Dictionary(uniqueKeysWithValues: (components.queryItems ?? []).compactMap { item in
        guard let value = item.value else { return nil }
        return (item.name, value)
    })
}