//
//  SPHomeSearchHistoryView.swift
//  Thimra
//
//  Created by Overseas on 2025/4/22.
//

import UIKit

class SPHomeSearchHistoryView: UIView {
    
    
    override var intrinsicContentSize: CGSize {
        return CGSize(width: kSPScreenWidth, height: 30 + self.tagView.intrinsicContentSize.height)
    }
    
    var viewModel: SPSearchViewModel? {
        didSet {
            viewModel?.addObserver(self, forKeyPath: "searchHistoryArr", context: nil)
            
            self.tagView.reloadData()
            
            self.invalidateIntrinsicContentSize()
        }
    }
    
    var searchTextBlock: ((_ text: String) -> Void)?
    
    private lazy var titleLabel: UILabel = {
        let label = UILabel()
        label.font = .fontBold(ofSize: 16)
        label.textColor = .colorE7F5FF()
        label.text = "Historical search".localized
        return label
    }()
    
    private lazy var deleteButton: UIButton = {
        let button = UIButton(type: .custom)
        button.setImage(UIImage(named: "delete_icon_03"), for: .normal)
        button.addTarget(self, action: #selector(handleDeleteButton), for: .touchUpInside)
        return button
    }()
    
    private lazy var tagView: JXTagView = {
        let view = JXTagView()
        view.delegate = self
        view.dataSource = self
        view.tagBorderWidth = 1
        view.tagBorderColor = .colorFFFFFF(alpha: 0.2)
        view.tagHeight = 20
        view.tagCornerRadius = 10
        view.tagBackgroundColor = .clear
        view.textFont = .fontRegular(ofSize: 12)
        view.textColor = .colorFFFFFF(alpha: 0.8)
        view.textMargin = 8
        view.tagHorizontalGap = 12
        view.tagVerticalGap = 12
        view.leftAndRightMargin = 16
        return view
    }()
    
    deinit {
        viewModel?.removeObserver(self, forKeyPath: "searchHistoryArr")
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        _setupUI()
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if keyPath == "searchHistoryArr" {
            self.tagView.reloadData()
        }
    }
    
    
    @objc private func handleDeleteButton() {
        self.viewModel?.cleanSearchHistory()
    }
}

extension SPHomeSearchHistoryView {
    
    private func _setupUI() {
        addSubview(titleLabel)
        addSubview(deleteButton)
        addSubview(tagView)
        
        titleLabel.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(16)
            make.centerY.equalTo(deleteButton)
        }
        
        deleteButton.snp.makeConstraints { make in
            make.right.equalToSuperview().offset(-16)
            make.top.equalToSuperview()
        }
        
        tagView.snp.makeConstraints { make in
            make.left.right.equalToSuperview()
            make.bottom.equalToSuperview()
//            make.top.equalTo(self.titleLabel.snp.bottom).offset(12)
            make.top.equalToSuperview().offset(30)
        }
    }
    
}

//MARK: --------------   JXTagViewDelegate & JXTagViewDataSource  --------------
extension SPHomeSearchHistoryView: JXTagViewDelegate, JXTagViewDataSource {
    func jx_tagView(tagView: JXTagView, titleForIndex index: Int) -> String? {
        return viewModel?.searchHistoryArr[index]
    }
    
    func jx_number(in tagView: JXTagView) -> Int {
        return viewModel?.searchHistoryArr.count ?? 0
    }
    
    func jx_tagView(tagView: JXTagView, didSelectedTagAt index: Int) {
        guard let text = viewModel?.searchHistoryArr[index] else { return }
        self.searchTextBlock?(text)
    }
}