import SwiftUI

@Observable
@MainActor
final class AppState {
    var inputText: String = ""
    var attachedImages: [ImageAttachment] = []
    var selectedAccountIDs: Set<UUID> = []
    var isSubmitting: Bool = false
    var isPanelVisible: Bool = false
    var statusMessage: StatusMessage?

    static let maxImages = 4

    var canPost: Bool {
        !inputText.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
            && !selectedAccountIDs.isEmpty
            && !isSubmitting
    }

    func reset() {
        inputText = ""
        attachedImages = []
        statusMessage = nil
    }
}

struct ImageAttachment: Identifiable {
    let id = UUID()
    let image: NSImage
    let data: Data
    let filename: String
}

struct StatusMessage: Identifiable {
    let id = UUID()
    let text: String
    let isError: Bool
}