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

import Foundation
import UIKit
import SnapKit


class LNVoicePlayView: UIView {
    let playIcon = UIImageView()
    let waveView = LNVoiceWaveView()
    let durationLabel = UILabel()
    
    private(set) var curUrl: String?
    private(set) var duration: Int = 0
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        setupViews()
        LNEventDeliver.addObserver(self)
    }
    
    func update(_ url: String?, duration: Int) {
        curUrl = url
        self.duration = duration
        
        if LNVoicePlayer.shared.playingUrl == url {
            playIcon.image = .icVoicePause
        } else {
            playIcon.image = .icVoicePlay
        }
        durationLabel.text = duration.durationDisplay
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    private func setupViews() {
        clipsToBounds = true
        
        let button = UIButton()
        button.setBackgroundImage(.primary_7, for: .normal)
        addSubview(button)
        button.snp.makeConstraints { make in
            make.edges.equalToSuperview()
        }
        
        playIcon.image = .icVoicePlay
        button.addSubview(playIcon)
        playIcon.snp.makeConstraints { make in
            make.centerY.equalToSuperview()
            make.leading.equalToSuperview().offset(3)
            make.width.height.equalTo(32)
        }
        
        waveView.isUserInteractionEnabled = false
        waveView.build()
        button.addSubview(waveView)
        waveView.snp.makeConstraints { make in
            make.centerY.equalToSuperview()
            make.leading.equalTo(playIcon.snp.trailing).offset(7)
            make.width.equalTo(30)
            make.height.equalTo(18)
        }
        
        durationLabel.font = .heading_h4
        durationLabel.textColor = .text_1
        button.addSubview(durationLabel)
        durationLabel.snp.makeConstraints { make in
            make.centerY.equalToSuperview()
            make.trailing.equalToSuperview().offset(-8)
        }
        
        button.addAction(UIAction(handler: { [weak self] _ in
            guard let self else { return }
            if LNVoicePlayer.shared.isPlaying {
                LNVoicePlayer.shared.stop()
            } else if let curUrl {
                if curUrl.starts(with: "http") {
                    LNVoicePlayer.shared.play(curUrl)
                } else {
                    LNVoicePlayer.shared.play(path: curUrl)
                }
            }
        }), for: .touchUpInside)
    }
}

extension LNVoicePlayView: LNVoicePlayerNotify {
    func onAudioUpdateDuration(path: String, cur: TimeInterval, total: TimeInterval) {
        guard curUrl == path else { return }
        
        durationLabel.text = (total - cur).durationDisplay
    }
    
    func onAudioStopPlay(path: String) {
        guard curUrl == path else { return }
        
        durationLabel.text = duration.durationDisplay
        playIcon.image = .icVoicePlay
        waveView.stopAnimate()
    }
    
    func onAudioStartPlay(path: String) {
        guard curUrl == path else { return }
        
        playIcon.image = .icVoicePause
        waveView.startAnimate()
    }
}