// ContentView.swift
import SwiftUI

struct ContentView: View {
    var body: some View {
        SearchPage()
    }
}

// SearchPage.swift
import AtomicX
import AtomicXCore
import SwiftUI

public struct SearchPage: View {
    @StateObject private var themeState = ThemeState.shared
    @State private var isLoggedIn = false
    @State private var isLoggingIn = true
    @State private var loginError: String? = nil

    private let sdkAppID: Int32 = 1234567890 // TODO: Fill in the sdkAppID here
    private let userID = "" // TODO: Fill in your userID here
    private let userSig = "" // TODO: Fill in your generated userSig here

    public var body: some View {
        Group {
            if isLoggedIn {
                searchContentView
            } else if isLoggingIn {
                ProgressView("Logging in...")
            } else {
                VStack(spacing: 12) {
                    Image(systemName: "exclamationmark.triangle")
                        .font(.system(size: 40))
                        .foregroundColor(.orange)
                    Text(loginError ?? "Login failed")
                        .foregroundColor(.secondary)
                }
            }
        }
        .environmentObject(themeState)
        .onAppear {
            login()
        }
    }

    // MARK: - Search Content

    private var searchContentView: some View {
        VStack(spacing: 0) {
            navigationBarView

            Divider()
                .background(.gray)

            // Add SearchBar to this page.
            SearchBar(onTapItem: { result in
                handleSearchResult(result)
            })
            .padding(.vertical, 8)

            Spacer()
        }
        .background(themeState.colors.bgColorOperate.ignoresSafeArea(edges: .top))
    }

    // MARK: - Navigation Bar

    private var navigationBarView: some View {
        HStack {
            Image(systemName: "magnifyingglass")
                .font(.system(size: 24))
                .foregroundColor(.gray)
            Text("Search")
                .font(.system(size: 17, weight: .semibold))
                .foregroundColor(themeState.colors.textColorPrimary)
            Spacer()
        }
        .padding(.horizontal, 16)
        .frame(height: 44)
    }

    // MARK: - Handle Search Result

    private func handleSearchResult(_ result: Any) {
        if let friendInfo = result as? FriendSearchInfo {
            // Handle friend search result
            let conversationID = ChatUtil.getC2CConversationID(friendInfo.userID)
            print(">>>>> Search result - Friend: \\(friendInfo.userID), conversationID: \\(conversationID)")
        } else if let groupInfo = result as? GroupSearchInfo {
            // Handle group search result
            let conversationID = ChatUtil.getGroupConversationID(groupInfo.groupID)
            print(">>>>> Search result - Group: \\(groupInfo.groupID), conversationID: \\(conversationID)")
        } else if let messageDict = result as? [String: Any],
                  let messageInfo = messageDict["message"] as? MessageInfo,
                  let conversationID = messageDict["conversationID"] as? String
        {
            // Handle message search result (from search detail view)
            let conversationName = messageDict["conversationName"] as? String ?? "Unknown"
            print(">>>>> Search result - Message in \\(conversationName), conversationID: \\(conversationID), messageID: \\(messageInfo.id)")
        } else if let conversationDict = result as? [String: Any],
                  let conversationID = conversationDict["conversationID"] as? String
        {
            // Handle conversation search result (from detail view)
            let conversationName = conversationDict["conversationName"] as? String ?? "Unknown"
            print(">>>>> Search result - Conversation: \\(conversationName), conversationID: \\(conversationID)")
        } else {
            print(">>>>> Search result - Unknown type: \\(result)")
        }
    }

    // MARK: - Login

    private func login() {
        guard !userSig.isEmpty else {
            isLoggingIn = false
            loginError = "userSig is empty. Please fill in a valid userSig."
            return
        }
        // Login is required when page appears.
        LoginStore.shared.login(sdkAppID: sdkAppID, userID: userID, userSig: userSig) { result in
            switch result {
            case .success:
                print(">>>>> SearchPage login success, userID: \\(userID)")
                isLoggedIn = true
                isLoggingIn = false
            case .failure(let error):
                print(">>>>> SearchPage login failed: \\(error.code), \\(error.message)")
                loginError = "Login failed: \\(error.code), \\(error.message)"
                isLoggingIn = false
            }
        }
    }
}