import Foundation
import XuqmSDK

@MainActor
final class AuthViewModel: ObservableObject {
    @Published var state: LoginState = .idle
    @Published var currentUserId: String = ""
    @Published var currentNickname: String = ""

    private struct DemoLoginResponse: Decodable, Sendable {
        let imToken: String
        let profile: DemoProfile
        struct DemoProfile: Decodable, Sendable {
            let userId: String
        }
    }

    func login(userId: String, password: String) {
        guard !userId.isEmpty, !password.isEmpty else {
            state = .error("请输入用户 ID 和密码")
            return
        }
        state = .loading
        Task {
            do {
                let config = XuqmSDK.shared.requireConfig()
                let res: DemoLoginResponse = try await ApiClient.shared.request(
                    path: "/api/demo/auth/login",
                    method: "POST",
                    queryItems: [URLQueryItem(name: "appKey", value: config.appKey)],
                    body: ["appKey": config.appKey, "userId": userId, "password": password]
                )
                await XuqmSDK.shared.login(userId: res.profile.userId, userSig: res.imToken)
                currentUserId = res.profile.userId
                currentNickname = res.profile.userId
                state = .success
            } catch {
                state = .error(error.localizedDescription)
            }
        }
    }

    func logout() {
        Task { await XuqmSDK.shared.logout() }
        currentUserId = ""
        currentNickname = ""
        state = .idle
    }
}