import Foundation
import monalxmpp
import SwiftUI

// MARK: - Account
enum AccountsAvailability {
    case noAccounts
    case allDisabled
    case someEnabled
}

struct Account: Identifiable {
    let id: Int
    let local: String
    let domain: String
    let resource: String
    let isEnabled: Bool

    var jid: String {
        "\(local)@\(domain)"
    }

    init?(_ dict: NSDictionary) {
        guard let id = dict.value(forKey: "account_id") as? Int else { return nil }
        guard let local = dict.value(forKey: "username") as? String else { return nil }
        guard let domain = dict.value(forKey: "domain") as? String else { return nil }
        guard let resource = dict.value(forKey: "resource") as? String else { return nil }
        guard let isEnabled = dict.value(forKey: "enabled") as? Bool else { return nil }

        self.id = id
        self.local = local
        self.domain = domain
        self.resource = resource
        self.isEnabled = isEnabled
    }
}

extension Account: UniversalInputSelectionElement {
    var icon: Image? { nil }
    var text: String? { jid }
}

// MARK: - Contact
struct Contact: Identifiable {
    let ownerId: Int
    let contactJid: String
    let name: String?

    var id: String { contactJid }

    init?(_ obj: MLContact) {
        ownerId = obj.accountID.intValue
        contactJid = obj.contactJid
        name = obj.nickName.isEmpty ? nil : obj.nickName
    }
}

// MARK: - Chat
struct Chat: Identifiable {
    let accountId: Int
    let participantJid: String
    let participantName: String?

    var id: String {
        "\(accountId)_\(participantJid)"
    }

    var name: String {
        if let participantName, !participantName.isEmpty {
            return participantName
        } else {
            return participantJid
        }
    }

    init?(_ obj: MLContact) {
        guard let accId = obj.accountID as? Int else { return nil }
        accountId = accId
        participantJid = obj.contactJid
        participantName = obj.nickName
    }
}

// MARK: Message
struct Message: Identifiable {
    let accountId: Int
    let participantJid: String
    let dbId: Int
    let stanzaId: String
    let timestamp: Date
    let body: String
    let isInbound: Bool
    let encrypted: Bool

    var id: String {
        "\(accountId)|\(dbId)"
    }

    init?(_ obj: MLMessage) {
        guard let accId = obj.accountID as? Int, let dbId = obj.messageDBId as? Int else { return nil }
        accountId = accId
        participantJid = obj.participantJid
        self.dbId = dbId
        stanzaId = obj.stanzaId
        timestamp = obj.timestamp
        body = obj.messageText
        isInbound = obj.inbound
        encrypted = obj.encrypted
    }
}