Lanu_iOS/Lanu/Views/Room/Seats/Host/LNRoomHostSeatView.swift

//
//  LNRoomHostSeatView.swift
//  Gami
//
//  Created by OneeChan on 2026/3/9.
//

import Foundation
import UIKit
import SnapKit


class LNRoomHostSeatView: UIView, LNRoomSeatViewProtocol {
    private let seatNum: Int = 0
    private let nameLabel = UILabel()
    private let emptyIc = UIImageView()
    
    private let userView = UIView()
    private let userAvatar = UIImageView()
    private let muteIc = UIImageView()
    private let speakingView = LNRoomSeatSpeakingView()
    
    private weak var roomSession: LNRoomViewModel?
    private var curSeat: LNRoomSeatItem? {
        roomSession?.seatsInfo.first { $0.index == seatNum }
    }
    private var isSpeaking: Bool {
        roomSession?.speakingUser.contains(curSeat?.uid ?? "") == true
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        setupViews()
        
        LNEventDeliver.addObserver(self)
    }
    
    func update(_ room: LNRoomViewModel?) {
        roomSession = room
        onRoomSeatsChanged()
        speakingView.update(seatNum, room: room)
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

extension LNRoomHostSeatView: LNRoomViewModelNotify {
    func onRoomSeatsChanged() {
        if let curSeat {
            muteIc.isHidden = !curSeat.isMute
            userView.isHidden = false
            userAvatar.sd_setImage(with: URL(string: curSeat.avatar))
            nameLabel.text = curSeat.nickname.isEmpty ? " " : curSeat.nickname
        } else {
            muteIc.isHidden = true
            userView.isHidden = true
            nameLabel.text = .init(key: "A00328")
        }
    }
}

extension LNRoomHostSeatView {
    private func setupViews() {
        onTap { [weak self] in
            guard let self else { return }
            guard let roomSession,
                  let curSeat else { return }
            handlerClick(roomSession, curSeat)
        }
        snp.makeConstraints { make in
            make.width.equalTo(76)
            make.height.equalTo(68)
        }
        
        let empty = buildEmpty()
        addSubview(empty)
        empty.snp.makeConstraints { make in
            make.centerX.equalToSuperview()
            make.top.equalToSuperview()
        }
        
        let userView = buildUserView()
        addSubview(userView)
        userView.snp.makeConstraints { make in
            make.centerX.equalToSuperview()
            make.top.equalToSuperview()
        }
        
        let bottom = buildBottom()
        addSubview(bottom)
        bottom.snp.makeConstraints { make in
            make.centerX.equalToSuperview()
            make.bottom.equalToSuperview()
            make.leading.greaterThanOrEqualToSuperview()
        }
    }
    
    private func buildEmpty() -> UIView {
        emptyIc.image = .icSeatNormal
        
        return emptyIc
    }
    
    private func buildUserView() -> UIView {
        userView.isHidden = true
        userView.snp.makeConstraints { make in
            make.width.height.equalTo(46)
        }
        
        userView.addSubview(speakingView)
        speakingView.snp.makeConstraints { make in
            make.edges.equalToSuperview()
        }
        
        let gradientBg = UIImageView()
        gradientBg.layer.cornerRadius = 23
        gradientBg.image = .primary_7
        gradientBg.clipsToBounds = true
        userView.addSubview(gradientBg)
        gradientBg.snp.makeConstraints { make in
            make.edges.equalToSuperview()
        }
        
        userAvatar.layer.cornerRadius = 22
        userAvatar.clipsToBounds = true
        userView.addSubview(userAvatar)
        userAvatar.snp.makeConstraints { make in
            make.center.equalToSuperview()
            make.width.height.equalTo(44)
        }
        
        muteIc.layer.cornerRadius = 6.3
        muteIc.backgroundColor = .black.withAlphaComponent(0.7)
        muteIc.image = .icMicOn
        userView.addSubview(muteIc)
        muteIc.snp.makeConstraints { make in
            make.trailing.equalToSuperview()
            make.bottom.equalToSuperview()
            make.width.height.equalTo(12.6)
        }
        
        return userView
    }
    
    private func buildBottom() -> UIView {
        let container = UIView()
        
        let hostIc = UIImageView(image: .icMicRoomHost)
        container.addSubview(hostIc)
        hostIc.snp.makeConstraints { make in
            make.leading.equalToSuperview()
            make.centerY.equalToSuperview()
        }
        
        nameLabel.text = .init(key: "A00328")
        nameLabel.font = .body_xs
        nameLabel.textColor = .text_1
        nameLabel.textAlignment = .center
        container.addSubview(nameLabel)
        nameLabel.snp.makeConstraints { make in
            make.leading.equalTo(hostIc.snp.trailing).offset(2)
            make.trailing.equalToSuperview()
            make.verticalEdges.equalToSuperview()
        }
        return container
    }
}