/*
Copyright 2019-2024 New Vector Ltd.

SPDX-License-Identifier: AGPL-3.0-only
Please see LICENSE in the repository root for full details.
 */

import UIKit

@objcMembers
class KeyVerificationRequestStatusCell: KeyVerificationBaseCell {

    // MARK: - Constants
    
    private enum Sizing {
        static let view = KeyVerificationRequestStatusCell(style: .default, reuseIdentifier: nil)
    }
    
    // MARK: - Setup

    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        self.commonInit()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    private func commonInit() {
        guard let keyVerificationCellInnerContentView = self.keyVerificationCellInnerContentView else {
            fatalError("[KeyVerificationRequestStatusBubbleCell] keyVerificationCellInnerContentView should not be nil")
        }
        
        keyVerificationCellInnerContentView.isButtonsHidden = true
        keyVerificationCellInnerContentView.isRequestStatusHidden = false
        keyVerificationCellInnerContentView.badgeImage = Asset.Images.encryptionNormal.image
    }
    
    // MARK: - Overrides
    
    override func render(_ cellData: MXKCellData!) {
        super.render(cellData)
        
        guard let keyVerificationCellInnerContentView = self.keyVerificationCellInnerContentView,
              let roomBubbleCellData = self.bubbleData as? RoomBubbleCellData,
              let viewData = self.viewData(from: roomBubbleCellData) else {
            MXLog.debug("[KeyVerificationRequestStatusBubbleCell] Fail to render \(String(describing: cellData))")
            return
        }
        
        keyVerificationCellInnerContentView.title = viewData.title
        keyVerificationCellInnerContentView.updateSenderInfo(with: viewData.senderId, userDisplayName: viewData.senderDisplayName)
        keyVerificationCellInnerContentView.requestStatusText = viewData.statusText
    }
    
    override class func sizingView() -> KeyVerificationBaseCell {
        return self.Sizing.view
    }
    
    // MARK: - Private
    
    private func viewData(from roomBubbleCellData: RoomBubbleCellData) -> KeyVerificationRequestStatusViewData? {
        
        let senderId = self.senderId(from: bubbleData)
        let senderDisplayName = self.senderDisplayName(from: bubbleData)
        let title: String
        let statusText: String?
        
        if roomBubbleCellData.isIncoming {
            title = VectorL10n.keyVerificationTileRequestIncomingTitle
        } else {
            title = VectorL10n.keyVerificationTileRequestOutgoingTitle
        }
        
        if let keyVerification = roomBubbleCellData.keyVerification {
            switch keyVerification.state {
            case .requestPending:
                if !roomBubbleCellData.isIncoming {
                    statusText = VectorL10n.keyVerificationTileRequestStatusWaiting
                } else {                    
                    if roomBubbleCellData.isKeyVerificationOperationPending {
                        statusText = VectorL10n.keyVerificationTileRequestStatusDataLoading
                    } else {
                        // Should not happen, KeyVerificationIncomingRequestApprovalBubbleCell should be displayed in this case.
                        statusText = nil
                    }
                }
            case .requestExpired:
                statusText = VectorL10n.keyVerificationTileRequestStatusExpired
            case .requestCancelled, .transactionCancelled:
                let userName = senderDisplayName ?? senderId
                statusText = VectorL10n.keyVerificationTileRequestStatusCancelled(userName)
            case .requestCancelledByMe, .transactionCancelledByMe:
                statusText = VectorL10n.keyVerificationTileRequestStatusCancelledByMe
            default:
                statusText = VectorL10n.keyVerificationTileRequestStatusAccepted
            }
        } else {
            statusText = VectorL10n.keyVerificationTileRequestStatusDataLoading
        }
        
        let viewData: KeyVerificationRequestStatusViewData?
        
        if let statusText = statusText {
            viewData = KeyVerificationRequestStatusViewData(title: title,
                                                            senderId: senderId,
                                                            senderDisplayName: senderDisplayName,
                                                            statusText: statusText)
        } else {
            viewData = nil
        }
        
        return viewData
    }
}