//
//  NKShare+Extensions.swift
//  FileProviderUIExt
//
//  SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
//  SPDX-License-Identifier: GPL-2.0-or-later
//

import AppKit
import NextcloudKit

extension NKShare {
    enum ShareType: Int {
        case internalLink = -1
        case user = 0
        case group = 1
        case publicLink = 3
        case email = 4
        case federatedCloud = 6
        case circle = 7
        case talkConversation = 10
    }

    enum PermissionValues: Int {
        case readShare = 1
        case updateShare = 2
        case createShare = 4
        case deleteShare = 8
        case shareShare = 16
        case all = 31
    }

    var typeImage: NSImage? {
        var image: NSImage?
        switch shareType {
        case ShareType.internalLink.rawValue:
            image = NSImage(
                systemSymbolName: "square.and.arrow.up.circle.fill",
                accessibilityDescription: String(localized: "Internal link share icon")
            )
        case ShareType.user.rawValue:
            image = NSImage(
                systemSymbolName: "person.circle.fill", 
                accessibilityDescription: String(localized: "User share icon")
            )
        case ShareType.group.rawValue:
            image = NSImage(
                systemSymbolName: "person.2.circle.fill",
                accessibilityDescription: String(localized: "Group share icon")
            )
        case ShareType.publicLink.rawValue:
            image = NSImage(
                systemSymbolName: "link.circle.fill",
                accessibilityDescription: String(localized: "Public link share icon")
            )
        case ShareType.email.rawValue:
            image = NSImage(
                systemSymbolName: "envelope.circle.fill",
                accessibilityDescription: String(localized: "Email share icon")
            )
        case ShareType.federatedCloud.rawValue:
            image = NSImage(
                systemSymbolName: "cloud.circle.fill",
                accessibilityDescription: String(localized: "Federated cloud share icon")
            )
        case ShareType.circle.rawValue:
            image = NSImage(
                systemSymbolName: "circle.circle.fill",
                accessibilityDescription: String(localized: "Circle share icon")
            )
        case ShareType.talkConversation.rawValue:
            image = NSImage(
                systemSymbolName: "message.circle.fill",
                accessibilityDescription: String(localized: "Talk conversation share icon")
            )
        default:
            return nil
        }

        var config = NSImage.SymbolConfiguration(textStyle: .body, scale: .large)
        if #available(macOS 12.0, *) {
            config = config.applying(
                .init(paletteColors: [.controlBackgroundColor, .controlAccentColor])
            )
        }
        return image?.withSymbolConfiguration(config)
    }

    var displayString: String {
        if label != "" {
            return label
        }

        switch shareType {
        case ShareType.internalLink.rawValue:
            return String(localized: "Internal share (requires access to file)")
        case ShareType.user.rawValue:
            return String(format: String(localized: "User share (%@)"), shareWith)
        case ShareType.group.rawValue:
            return String(format: String(localized: "Group share (%@)"), shareWith)
        case ShareType.publicLink.rawValue:
            return String(localized: "Public link share")
        case ShareType.email.rawValue:
            return String(format: String(localized: "Email share (%@)"), shareWith)
        case ShareType.federatedCloud.rawValue:
            return String(format: String(localized: "Federated cloud share (%@)"), shareWith)
        case ShareType.circle.rawValue:
            return String(format: String(localized: "Circle share (%@)"), shareWith)
        case ShareType.talkConversation.rawValue:
            return String(format: String(localized: "Talk conversation share (%@)"), shareWith)
        default:
            return String(localized: "Unknown share")
        }
    }

    var expirationDateString: String? {
        guard let date = expirationDate else { return nil }
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "YYYY-MM-dd HH:mm:ss"
        return dateFormatter.string(from: date as Date)
    }

    var shareesCanEdit: Bool {
        get { (permissions & PermissionValues.updateShare.rawValue) != 0 }
        set {
            if newValue {
                permissions |= NKShare.PermissionValues.updateShare.rawValue
            } else {
                permissions &= ~NKShare.PermissionValues.updateShare.rawValue
            }
        }
    }

    static func formattedDateString(date: Date) -> String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "YYYY-MM-dd HH:mm:ss"
        return dateFormatter.string(from: date)
    }
}