//
//  OrderCardCell.swift
//  suixinkan
//

import SnapKit
import UIKit

struct OrderCardActions {
    var onRefund: (() -> Void)?
    var onVerify: (() -> Void)?
    var onUploadTask: (() -> Void)?
    var onCancel: (() -> Void)?
    var onCallPhone: (() -> Void)?
    var onGiftPhotoMinus: (() -> Void)?
    var onGiftPhotoPlus: (() -> Void)?
    var onGiftVideoMinus: (() -> Void)?
    var onGiftVideoPlus: (() -> Void)?
    var onSendGift: (() -> Void)?
    var onRefinedChanged: ((Int) -> Void)?
    var onHistoricalPhoto: (() -> Void)?
    var onOrderSourceTap: (() -> Void)?
    var onOrderSourceImageTap: (([String], Int) -> Void)?
}

/// 摄影师订单卡片，严格对齐 Android `OrderView`。
final class OrderCardCell: UITableViewCell {
    static let reuseIdentifier = "OrderCardCell"

    private let cardView = UIView()
    private let contentStack = UIStackView()

    private let headerRow = UIStackView()
    private let orderNumberLabel = UILabel()
    private let statusBadge = OrderStatusBadgeView()
    private let createdAtLabel = UILabel()
    private let typeChip = OrderTypeChipView()
    private let orderSourceEntryView = OrderSourceEntryView()
    private let actionRow = UIStackView()
    private let refundButton = OrderActionButton(title: "退款", style: .destructiveLight)
    private let verifyButton = OrderActionButton(title: "核销订单", style: .primaryFilled)
    private let uploadTaskButton = OrderActionButton(title: "上传任务", style: .primaryLight)
    private let editOptionView = OrderEditOptionView()
    private let refundAmountRow = OrderInfoRowView()
    private let detailStack = UIStackView()
    private let photoCountRow = UIStackView()
    private let photoCountLabel = UILabel()
    private let photoValueLabel = UILabel()
    private let photoGiftStepper = OrderGiftStepperView()
    private let videoCountRow = UIStackView()
    private let videoCountLabel = UILabel()
    private let videoValueLabel = UILabel()
    private let videoGiftStepper = OrderGiftStepperView()
    private let remarkSection = UIStackView()
    private let remarkDivider = UIView()
    private let remarkTitleLabel = UILabel()
    private let remarkBodyLabel = UILabel()
    private let historicalPhotosView = OrderHistoricalPhotosView()
    private let cancelButton = OrderActionButton(title: "取消订单", style: .primaryFilled)

    private var refundWidthConstraint: Constraint?
    private var actions = OrderCardActions()

    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        selectionStyle = .none
        backgroundColor = .clear
        contentView.backgroundColor = .clear
        setupUI()
    }

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

    func configure(
        order: OrderEntity,
        hideWriteActions: Bool,
        actions: OrderCardActions,
        showOrderSource: Bool,
        sourceSelection: OrderSourceSelection?
    ) {
        self.actions = actions
        orderNumberLabel.text = "订单号：\(order.orderNumber)"
        statusBadge.apply(status: order.orderStatus, text: order.orderStatusName)
        createdAtLabel.text = order.createdAt.isEmpty ? "--" : order.createdAt
        typeChip.apply(text: order.orderTypeLabel)

        let showRefund = !hideWriteActions && (order.orderStatus == 18 || order.orderStatus == 30) && order.orderType != 19
        let showVerify = !hideWriteActions && (
            (order.photoTravel?.needCheckIn == true && order.orderStatus != 30) || order.orderType == 19
        )
        actionRow.isHidden = !showRefund && !showVerify
        refundButton.isHidden = !showRefund
        verifyButton.isHidden = !showVerify
        updateRefundWidth(showVerify: showVerify && showRefund)

        uploadTaskButton.isHidden = hideWriteActions || order.orderType != 19

        orderSourceEntryView.isHidden = !showOrderSource
        if showOrderSource {
            orderSourceEntryView.apply(selection: sourceSelection)
        }

        let showEdit = (order.orderStatus == 18 || order.orderStatus == 30) && order.orderType != 19
        editOptionView.isHidden = !showEdit
        if showEdit {
            editOptionView.apply(isRefined: order.isRefined, readOnly: hideWriteActions)
        }

        let showRefundAmount = order.orderStatus == 50
            && !order.actualRefundAmount.isEmpty
            && order.actualRefundAmount != "0"
        refundAmountRow.isHidden = !showRefundAmount
        if showRefundAmount {
            refundAmountRow.apply(title: "退款金额", value: "¥\(order.actualRefundAmount)", usesPrimaryValue: true)
        }

        rebuildDetailRows(order: order, hideWriteActions: hideWriteActions)
        configureTravelRows(order: order, hideWriteActions: hideWriteActions)

        if let remark = order.remark, !remark.isEmpty {
            remarkSection.isHidden = false
            remarkBodyLabel.text = remark
        } else {
            remarkSection.isHidden = true
        }

        let materials = order.multiTravel?.materialList ?? []
        historicalPhotosView.isHidden = materials.isEmpty
        if !materials.isEmpty {
            historicalPhotosView.apply(materials: materials)
        }

        cancelButton.isHidden = hideWriteActions || order.photoTravel?.canCancelOrder != true
    }

    private func setupUI() {
        cardView.backgroundColor = AppColor.cardBackground
        cardView.layer.cornerRadius = OrderTokens.cardRadius

        orderNumberLabel.font = .app(.body)
        orderNumberLabel.textColor = OrderTokens.orderNumber
        createdAtLabel.font = .app(.caption)
        createdAtLabel.textColor = OrderTokens.timestamp

        headerRow.axis = .horizontal
        headerRow.alignment = .center
        headerRow.distribution = .equalSpacing
        headerRow.addArrangedSubview(orderNumberLabel)
        headerRow.addArrangedSubview(statusBadge)

        orderSourceEntryView.addTarget(self, action: #selector(orderSourceTapped), for: .touchUpInside)
        orderSourceEntryView.onImageTap = { [weak self] images, index in
            self?.actions.onOrderSourceImageTap?(images, index)
        }

        actionRow.axis = .horizontal
        actionRow.spacing = OrderTokens.cardGap
        actionRow.alignment = .fill
        actionRow.addArrangedSubview(refundButton)
        actionRow.addArrangedSubview(verifyButton)
        refundButton.addTarget(self, action: #selector(refundTapped), for: .touchUpInside)
        verifyButton.addTarget(self, action: #selector(verifyTapped), for: .touchUpInside)

        uploadTaskButton.addTarget(self, action: #selector(uploadTaskTapped), for: .touchUpInside)

        editOptionView.onSelectionChange = { [weak self] value in
            self?.actions.onRefinedChanged?(value)
        }

        detailStack.axis = .vertical
        detailStack.spacing = OrderTokens.infoRowSpacing

        configureTravelRow(photoCountRow, titleLabel: photoCountLabel, valueLabel: photoValueLabel, title: "修图张数", stepper: photoGiftStepper)
        configureTravelRow(videoCountRow, titleLabel: videoCountLabel, valueLabel: videoValueLabel, title: "视频剪辑", stepper: videoGiftStepper)
        photoGiftStepper.onMinusTap = { [weak self] in self?.actions.onSendGift?() }
        photoGiftStepper.onPlusTap = { [weak self] in self?.actions.onSendGift?() }
        videoGiftStepper.onMinusTap = { [weak self] in self?.actions.onSendGift?() }
        videoGiftStepper.onPlusTap = { [weak self] in self?.actions.onSendGift?() }

        remarkDivider.backgroundColor = OrderTokens.remarkDivider
        remarkTitleLabel.text = "备注信息:"
        remarkTitleLabel.font = .app(.body)
        remarkTitleLabel.textColor = OrderTokens.label563
        remarkBodyLabel.font = .app(.body)
        remarkBodyLabel.textColor = OrderTokens.label563
        remarkBodyLabel.numberOfLines = 0
        remarkSection.axis = .vertical
        remarkSection.spacing = 6
        remarkSection.addArrangedSubview(remarkDivider)
        remarkSection.addArrangedSubview(remarkTitleLabel)
        remarkSection.addArrangedSubview(remarkBodyLabel)
        remarkDivider.snp.makeConstraints { make in
            make.height.equalTo(1)
        }

        historicalPhotosView.onTap = { [weak self] in self?.actions.onHistoricalPhoto?() }
        cancelButton.addTarget(self, action: #selector(cancelTapped), for: .touchUpInside)

        contentStack.axis = .vertical
        contentStack.spacing = OrderTokens.cardGap
        [
            headerRow,
            createdAtLabel,
            typeChip,
            orderSourceEntryView,
            actionRow,
            uploadTaskButton,
            editOptionView,
            refundAmountRow,
            detailStack,
            photoCountRow,
            videoCountRow,
            remarkSection,
            historicalPhotosView,
            cancelButton,
        ].forEach { contentStack.addArrangedSubview($0) }

        contentView.addSubview(cardView)
        cardView.addSubview(contentStack)
        cardView.snp.makeConstraints { make in
            make.edges.equalToSuperview().inset(
                UIEdgeInsets(top: 0, left: AppSpacing.md, bottom: OrderTokens.cardGap, right: AppSpacing.md)
            )
        }
        contentStack.snp.makeConstraints { make in
            make.edges.equalToSuperview().inset(OrderTokens.cardPadding)
        }
    }

    private func configureTravelRow(
        _ row: UIStackView,
        titleLabel: UILabel,
        valueLabel: UILabel,
        title: String,
        stepper: OrderGiftStepperView
    ) {
        row.axis = .horizontal
        row.alignment = .center
        row.distribution = .equalSpacing
        titleLabel.text = title
        titleLabel.font = .app(.body)
        titleLabel.textColor = OrderTokens.label563
        valueLabel.font = .systemFont(ofSize: 14, weight: .medium)
        valueLabel.textColor = OrderTokens.valueBlack
        row.addArrangedSubview(titleLabel)
        row.addArrangedSubview(stepper)
        row.addArrangedSubview(valueLabel)
        valueLabel.isHidden = true
    }

    private func updateRefundWidth(showVerify: Bool) {
        refundWidthConstraint?.deactivate()
        if showVerify {
            refundButton.snp.makeConstraints { make in
                refundWidthConstraint = make.width.equalTo(actionRow.snp.width).multipliedBy(OrderTokens.refundButtonWidthRatio).constraint
            }
        }
    }

    private func rebuildDetailRows(order: OrderEntity, hideWriteActions: Bool) {
        detailStack.arrangedSubviews.forEach { $0.removeFromSuperview() }

        addDetailRow(title: "付款金额", value: "¥\(order.actualPayAmount)", primary: true)
        addDetailRow(title: "付款时间", value: resolvedPayTime(order))
        addDetailRow(title: "完成时间", value: order.completeTime.isEmpty ? "--" : order.completeTime)
        if !order.payTypeName.isEmpty {
            addDetailRow(title: "付款方式", value: order.payTypeName)
        }
        addDetailRow(title: "UID", value: String(order.userId))

        let phoneRow = OrderPhoneRowView(style: .photographer)
        phoneRow.apply(phone: order.phone, hidden: hideWriteActions)
        phoneRow.onTap = { [weak self] in self?.actions.onCallPhone?() }
        detailStack.addArrangedSubview(phoneRow)

        if !order.projectName.isEmpty {
            addDetailRow(title: "关联项目", value: order.projectName)
        }
        if let travel = order.photoTravel, !travel.checkInTime.isEmpty {
            addDetailRow(title: "核销时间", value: travel.checkInTime)
        }
    }

    private func configureTravelRows(order: OrderEntity, hideWriteActions: Bool) {
        let showTravel = order.photoTravel != nil && order.orderType != 19 && order.orderType != 14
        photoCountRow.isHidden = !showTravel
        videoCountRow.isHidden = !showTravel
        guard showTravel, let travel = order.photoTravel else { return }

        let canGift = travel.canGiftRetouch && !hideWriteActions
        let photoText = "\(travel.orderPhotoNum + travel.retouchGiftPhotoNum) 张"
        let videoText = "\(travel.orderVideoNum + travel.retouchGiftVideoNum) 条"

        photoGiftStepper.isHidden = !canGift
        videoGiftStepper.isHidden = !canGift
        photoValueLabel.isHidden = canGift
        videoValueLabel.isHidden = canGift

        if canGift {
            photoGiftStepper.apply(text: photoText)
            videoGiftStepper.apply(text: videoText)
        } else {
            photoValueLabel.text = photoText
            videoValueLabel.text = videoText
        }
    }

    private func addDetailRow(title: String, value: String, primary: Bool = false) {
        let row = OrderInfoRowView()
        row.apply(title: title, value: value, usesPrimaryValue: primary)
        detailStack.addArrangedSubview(row)
    }

    private func resolvedPayTime(_ order: OrderEntity) -> String {
        let payTime = order.payTime
        if payTime.isEmpty { return order.depositPayTime.isEmpty ? "--" : order.depositPayTime }
        if payTime.hasPrefix("1970") || payTime == "0" {
            return order.depositPayTime.isEmpty ? "--" : order.depositPayTime
        }
        return payTime
    }

    @objc private func refundTapped() { actions.onRefund?() }
    @objc private func verifyTapped() { actions.onVerify?() }
    @objc private func uploadTaskTapped() { actions.onUploadTask?() }
    @objc private func cancelTapped() { actions.onCancel?() }
    @objc private func orderSourceTapped() { actions.onOrderSourceTap?() }
}

enum OrderPhoneMask {
    static func mask(_ phone: String) -> String {
        let trimmed = phone.trimmingCharacters(in: .whitespacesAndNewlines)
        guard trimmed.count >= 7 else { return trimmed }
        let start = trimmed.prefix(3)
        let end = trimmed.suffix(4)
        return "\(start)****\(end)"
    }
}