//
//  ChatVC.swift
//  yinmeng-ios
//
//  Created by MaiMang on 2024/2/25.
//  回话详情

import UIKit
import NIMSDK
class ChatVC: BaseViewController, HiddenNavigationBarProtocol {

	// 键盘收起/弹出 滚动的时候收起输入栏
	private var isBecome: Bool = false
	/// 是否发送完成
	private var isSended: Bool = true
	///  输入栏默认的高度
	private let ToolBarLastH: CGFloat = (52 + SafeAraeBottomHeight)

	public init(session: NIMSession) {
		vm = ChatViewModel(session: session)
		super.init(nibName: nil, bundle: nil)
		vm.delegate = self
	}

	required init?(coder: NSCoder) {
		fatalError("init(coder:) has not been implemented")
	}

	var vm:ChatViewModel

	override var preferredStatusBarStyle: UIStatusBarStyle {
		.darkContent
	}

	override open func viewWillDisappear(_ animated: Bool) {
		super.viewWillDisappear(animated)
		if NIMSDK.shared().mediaManager.isPlaying() {
			NIMSDK.shared().mediaManager.stopPlay()
		}
	}

	override func viewDidLoad() {
		super.viewDidLoad()
		view.backgroundColor = ThemeColor(hexStr: "#F8F8FB")
		requestInfo()
		loadChatList()
		registerChatCell()
		let height = ScreenHeight - (ToolBarLastH  + NavHeight)
		chatTableView.frame = CGRect(x: 0, y: NavHeight, width: ScreenWidth, height: height)
		navView.frame = CGRect(x: 0, y: 0, width: ScreenWidth, height: NavHeight)
		view.addSubview(chatTableView)
		view.addSubview(keyboardView)
		view.addSubview(navView)
	}

	///注册cell
	private func registerChatCell() {
		chatTableView.register(cellType: ChatTextCell.self)
		chatTableView.register(cellType: ChatTimeCell.self)
	}

	private lazy var chatTableView: UITableView = {
		let tableView = UITableView(frame: .zero, style: .plain)
		tableView.delegate = self
		tableView.dataSource = self
		tableView.tableFooterView = UIView()
		tableView.separatorStyle = .none
		tableView.backgroundColor = .clear
		if #available(iOS 11.0, *) {
			tableView.contentInsetAdjustmentBehavior = .never
		}
		return tableView
	}()

	private lazy var keyboardView: ChatKeyboardView = {
		let toolBarY = ScreenHeight - ToolBarLastH
		let view = ChatKeyboardView(frame: CGRect(x: 0, y: toolBarY, width: ScreenWidth, height: ToolBarLastH))
		view.backgroundColor = .white
		view.delegate = self
		return view
	}()


	private lazy var navView: ChatNavView = {
		let view = ChatNavView(frame: .zero)
		view.backgroundColor = .white
		return view
	}()

}

// MARK: - ChatKeyboardViewDelegate
extension ChatVC: ChatKeyboardViewDelegate {

	func keyboard(_ keyboard: ChatKeyboardView, voiceDidFinish path: String) {
		vm.sendAudioMessage(filePath: path) { error in

		}
	}

	func keyboard(_ keyboard: ChatKeyboardView, DidFinish content: String) {
		///发送消息
		vm.sendTextMessage(text: content) { error in

		}
	}

	func keyboard(_ keyboard: ChatKeyboardView, DidBecome isBecome: Bool) {
		self.isSended = true
		self.isBecome = isBecome
	}

	func keyboard(_ keyboard: ChatKeyboardView, DidMoreMenu type: ChatMoreMenuType) {

		//TODO: 点击更多
	}

	func keyboard(_ keyboard: ChatKeyboardView, DidObserver offsetY: CGFloat) {

	}
}

extension ChatVC {

	func requestInfo() {
		let params = ["uid": vm.session.sessionId]
		RequestGet(path: "user/get", parma: params) { data in
			if let info = Deserialized<UserObject>.toModel(with: data) {
				self.navView.name = info.nick
			}
		} fail: { code, msg in

		}

		let par:[String : Any] = ["uid": AuthManager.userUid, "isLikeUid": vm.session.sessionId]
		RequestGet(path: "fans/isLike", parma: par) { data in
			if let isLike = data as? Bool {
				self.navView.isLike = isLike
			}
		} fail: { code, msg in

		}
	}

	func loadChatList() {

		weak var weakSelf = self
		vm.queryRoamMsgHasMoreTime_v2 { error, historyEnd, newEnd, models, index in
			if let ms = models, ms.count > 0 {
				weakSelf?.chatTableView.reloadData()
				if weakSelf?.vm.isHistoryAnchorChat == true {
					let indexPath = IndexPath(row: index, section: 0)
					weakSelf?.chatTableView.scrollToRow(at: indexPath, at: .none, animated: false)
				} else {
					if let tempArrayJJom = weakSelf?.vm.messageObjects, tempArrayJJom.count > 0 {
						DispatchQueue.main.async {
							weakSelf?.chatTableView.scrollToRow(
								at: IndexPath(row: tempArrayJJom.count - 1, section: 0),
								at: .bottom,
								animated: false
							)
						}
					}
				}
			} else if let err = error {
				HUDTool.show(with: err.localizedDescription)
			}
		}

	}

	private func insertRows() {
		let oldRows = chatTableView.numberOfRows(inSection: 0)
		if oldRows == 0 {
			chatTableView.reloadData()
			return
		}
		if oldRows == vm.messageObjects.count {
			chatTableView.reloadData()
			return
		}
		var indexs = [IndexPath]()
		for (i, _) in vm.messageObjects.enumerated() {
			if i >= oldRows {
				indexs.append(IndexPath(row: i, section: 0))
			}
		}

		if !indexs.isEmpty {
			chatTableView.insertRows(at: indexs, with: .none)
			chatTableView.scrollToRow(
				at: IndexPath(row: vm.messageObjects.count - 1, section: 0),
				at: .bottom,
				animated: false
			)
		}
	}

	public func tableViewDeleteIndexs(_ indexs: [IndexPath]) {
		chatTableView.beginUpdates()
		chatTableView.deleteRows(at: indexs, with: .none)
		chatTableView.endUpdates()
	}

	public func tableViewReloadIndexs(_ indexs: [IndexPath]) {
		chatTableView.beginUpdates()
		chatTableView.reloadRows(at: indexs, with: .none)
		chatTableView.endUpdates()
	}

}

extension ChatVC: ChatViewModelDelegate{
	public func onRecvMessages(_ messages: [NIMMessage]) {
		insertRows()
		vm.markRead(messages: messages) { error in

		}
	}

	public func willSend(_ message: NIMMessage) {

	}

	public func didAppend(_ message: NIMMessage) {

	}

	public func send(_ message: NIMMessage, progress: Float) {}

	public func send(_ message: NIMMessage, didCompleteWithError error: Error?) {

	}

	private func indexPathsWithMessags(_ messages: [NIMMessage]) -> [IndexPath] {
		var indexPaths = [IndexPath]()
		for messageModel in messages {
			for (i, model) in vm.messageObjects.enumerated() {
				if model.msg?.messageId == messageModel.messageId {
					indexPaths.append(IndexPath(row: i, section: 0))
				}
			}
		}
		return indexPaths
	}

	public func onDeleteMessage(_ message: NIMMessage, atIndexs: [IndexPath]) {
		if atIndexs.isEmpty {
			return
		}
		tableViewDeleteIndexs(atIndexs)
	}
}

extension ChatVC: UITableViewDelegate, UITableViewDataSource, UIScrollViewDelegate {
	public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
		return vm.messageObjects.count
	}

	public func tableView(_ tableView: UITableView,
						  cellForRowAt indexPath: IndexPath) -> UITableViewCell {
		let model = vm.messageObjects[safe: indexPath.row]
		if model?.type == .text {
			let cell = tableView.dequeueReusableCell(for: indexPath, cellType: ChatTextCell.self)
			cell.model = model
		} else if model?.type == .time {
			let cell = tableView.dequeueReusableCell(for: indexPath, cellType: ChatTimeCell.self)
			cell.model = model
		}
		return UITableViewCell()
	}

	public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
		tableView.deselectRow(at: indexPath, animated: true)
	}

	public func tableView(_ tableView: UITableView,
						  heightForRowAt indexPath: IndexPath) -> CGFloat {
		let m = vm.messageObjects[safe:indexPath.row]
		return CGFloat(m?.height ?? 0)
	}

	func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
		if isSended {
			isSended = false
		}
	}

	func scrollViewDidScroll(_ scrollView: UIScrollView) {
		if isSended {
			return
		}

		if chatTableView.y <= 0 && isBecome {
			DispatchQueue.main.async {
				NotificationCenter.default.post(name: .kChatTextKeyboardNeedHide, object: nil)
			}
		}
	}
}