//
//  ItemGrid.swift
//  LuminateUI
//
//  Created by Brendan Szymanski on 6/5/26.
//

@preconcurrency import Adwaita
import LuminateCore

public struct ItemGrid: View {

    var client: JellyfinClient
    var userId: String
    var parentId: String?
    var includeItemTypes: [Components.Schemas.BaseItemKind]?
    var title: String?
    @State private nonisolated(unsafe) var items: [Components.Schemas.BaseItemDto] = []
    @State private nonisolated(unsafe) var isLoading = false
    private let pageSize: Int32 = 50

    public init(
        client: JellyfinClient,
        userId: String,
        parentId: String? = nil,
        includeItemTypes: [Components.Schemas.BaseItemKind]? = nil,
        title: String? = nil
    ) {
        self.client = client
        self.userId = userId
        self.parentId = parentId
        self.includeItemTypes = includeItemTypes
        self.title = title
    }

    public var view: Body {
        VStack {
            if let title {
                Text(title)
                    .title2()
                    .halign(.start)
                    .padding()
            }
            if isLoading {
                Spinner()
            } else {
                ScrollView {
                    FlowBox(items) { item in
                        PosterCell(item: item, client: client)
                    }
                }
            }
        }
        .onAppear {
            loadItems()
        }
    }

    private func loadItems() {
        isLoading = true
        Task { [self] in
            do {
                let result = try await client.getItems(
                    userId: userId,
                    parentId: parentId,
                    includeItemTypes: includeItemTypes,
                    fields: [.overview, .genres, .people, .mediaSources],
                    sortBy: [.sortName],
                    sortOrder: [.ascending],
                    startIndex: 0,
                    limit: pageSize,
                    recursive: true
                )
                items = result.items ?? []
                isLoading = false
            } catch {
                isLoading = false
            }
        }
    }
}