//
//  CryptoChatModelRealmChat.swift
//  Wallet
//
//  Created by Saveliy Stavitsky on 8/25/20.
//  Copyright © 2020 List. All rights reserved.
//

import Foundation
import class RealmSwift.Object
import struct RealmSwift.Persisted

class CryptoChatModelRealmChat: Object, Codable {
    @Persisted(primaryKey: true) var chatName: String
    @Persisted(indexed: true) var timestamp: Date
    @Persisted var data: String
    @Persisted var unreadCount: Int

    override required init() { }

    init(chatName: String, timestamp: Date, data: String, unreadCount: Int) {
        super.init()

        self.chatName = chatName.lowercased()
        self.timestamp = timestamp
        self.data = data
        self.unreadCount = unreadCount
    }

    var time: String {
        if Calendar.current.isDateInToday(timestamp) {
            let dateFormat = DateFormatter()
            dateFormat.dateStyle = .none
            dateFormat.timeStyle = .short
            return dateFormat.string(from: timestamp)
        } else if timestamp.isInThisYear {
            let dateFormat = DateFormatter()
            dateFormat.dateFormat = "dd MMM"
            return dateFormat.string(from: timestamp)
        } else {
            let dateFormat = DateFormatter()
            dateFormat.dateStyle = .medium
            dateFormat.timeStyle = .none
            return dateFormat.string(from: timestamp)
        }
    }

    private var plainText: String? {
        data.starts(with: "<plaintext>")
            ? String(data.dropFirst("<plaintext>".count).dropLast("</plaintext>".count))
            : nil
    }

    private var qr: String? {
        data.starts(with: "<qr>")
            ? String(data.dropFirst("<qr>".count).dropLast("</qr>".count))
            : nil
    }

    var textDescription: String { plainText ?? qr ?? data }
}