//
//  ProjectPanelView.swift
//  Todos
//
//  Created by Sam Jaffe on 2/28/26.
//

import SwiftUI
import SwiftData

struct ProjectPanelView: View {
  @Environment(\.modelContext) private var modelContext
  @AppStorage(UserDefaultsKeys.Category) var allGroups = CodableArray<Category>()

  @Bindable var item: Project
  @State private var empty = Category()

  @Binding var isMoveMode: Bool

  var body: some View {
    let style = Date.FormatStyle(date: .numeric, time: .standard)
    HStack {
      TextField("", text: $item.name)
          .font(.title)
          .padding(.leading, 10)
      Spacer()
      Button(action: addItem) {
        Image(systemName: "plus")
      }
        .help("New Task")
        .padding(.trailing, 10)
    }
    HStack {
      if let grp = $allGroups.first(where: { $0.name.wrappedValue == item.category }) {
        ColorPicker("", selection: grp.color).disabled(true).scaledToFit()
      }
      Picker("", selection: $item.category) {
        Text(empty.name).tag("")
        ForEach(allGroups) { group in
          Text(group.name)
        }
      }.help("Default category for new Tasks")
      Text("Created on \(item.timestamp, format: style)")
    }
    VStack {
      ForEach($item.tasks) { task in
        TaskView(task: task, isMoveMode: $isMoveMode)
      }
    }
  }

  private func addItem() {
    withAnimation {
      let newTask = Task(name: "New Task", parent: item)
      modelContext.insert(newTask)
      item.tasks.append(newTask)
    }
  }
}

#Preview {
  @Previewable @State var isMoveMode = false
  @Previewable @State var item = Project(timestamp: Date())
  ProjectPanelView(item: item, isMoveMode: $isMoveMode)
}