//
//  StatisticsDailyCell.swift
//  suixinkan
//

import SnapKit
import UIKit

/// 数据统计日明细行，对齐 Android `DailyDataBox`。
final class StatisticsDailyCell: UITableViewCell {

    static let reuseIdentifier = "StatisticsDailyCell"

    private let dateLabel = UILabel()
    private let orderCountTitle = UILabel()
    private let orderCountValue = UILabel()
    private let averageTitle = UILabel()
    private let averageValue = UILabel()
    private let refundTitle = UILabel()
    private let refundValue = UILabel()
    private let receivedTitle = UILabel()
    private let receivedValue = UILabel()
    private let divider = UIView()

    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        setupUI()
    }

    @available(*, unavailable)
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    func configure(with item: StatisticsDailyItem, showsDivider: Bool) {
        dateLabel.text = item.date
        orderCountValue.text = "\(item.orderCount)"
        averageValue.text = "￥\(item.orderPrice)"
        refundValue.text = "￥\(item.refund)"
        receivedValue.text = "￥\(item.received)"
        divider.isHidden = !showsDivider
    }

    private func setupUI() {
        selectionStyle = .none
        backgroundColor = .clear

        dateLabel.font = .systemFont(ofSize: 14)
        dateLabel.textColor = .black

        let metricColor = UIColor(hex: 0x4B5563)
        [orderCountTitle, averageTitle, refundTitle, receivedTitle].forEach {
            $0.font = .systemFont(ofSize: 14)
            $0.textColor = metricColor
        }
        orderCountTitle.text = "订单数"
        averageTitle.text = "客单价"
        refundTitle.text = "退款"
        receivedTitle.text = "实收"

        [orderCountValue, averageValue].forEach {
            $0.font = .systemFont(ofSize: 14, weight: .semibold)
            $0.textColor = .black
        }
        refundValue.font = .systemFont(ofSize: 14, weight: .semibold)
        refundValue.textColor = UIColor(hex: 0xEF4444)
        receivedValue.font = .systemFont(ofSize: 14, weight: .semibold)
        receivedValue.textColor = UIColor(hex: 0x22C55E)

        divider.backgroundColor = UIColor(hex: 0xF4F4F4)

        let metricsRow = UIStackView()
        metricsRow.axis = .horizontal
        metricsRow.distribution = .fillEqually
        metricsRow.alignment = .fill
        metricsRow.spacing = 8

        metricsRow.addArrangedSubview(metricColumn(title: orderCountTitle, value: orderCountValue))
        metricsRow.addArrangedSubview(metricColumn(title: averageTitle, value: averageValue))
        metricsRow.addArrangedSubview(metricColumn(title: refundTitle, value: refundValue))
        metricsRow.addArrangedSubview(metricColumn(title: receivedTitle, value: receivedValue))

        contentView.addSubview(dateLabel)
        contentView.addSubview(metricsRow)
        contentView.addSubview(divider)

        dateLabel.snp.makeConstraints { make in
            make.top.leading.trailing.equalToSuperview().inset(UIEdgeInsets(top: 12, left: 0, bottom: 0, right: 0))
        }
        metricsRow.snp.makeConstraints { make in
            make.top.equalTo(dateLabel.snp.bottom).offset(12)
            make.leading.trailing.equalToSuperview()
            make.bottom.equalToSuperview().inset(12)
        }
        divider.snp.makeConstraints { make in
            make.leading.trailing.bottom.equalToSuperview()
            make.height.equalTo(1)
        }
    }

    private func metricColumn(title: UILabel, value: UILabel) -> UIStackView {
        let stack = UIStackView(arrangedSubviews: [title, value])
        stack.axis = .vertical
        stack.spacing = 4
        stack.alignment = .leading
        return stack
    }
}