1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89
90. 90
91. 91
92. 92
93. 93
94. 94
95. 95
96. 96
97. 97
98. 98
99. 99
100. 100
101. 101
102. 102
103. 103
104. 104
105. 105
106. 106
107. 107
108. 108
109. 109
110. 110
111. 111
112. 112
113. 113
114. 114
115. 115
116. 116
117. 117
118. 118
119. 119
120. 120
121. 121
122. 122
123. 123
124. 124
125. 125
126. 126
127. 127
128. 128
129. 129
130. 130
131. 131
132. 132
133. 133
134. 134
135. 135
136. 136
137. 137
138. 138
139. 139
140. 140
141. 141
142. 142
143. 143
144. 144
145. 145
146. 146
147. 147
148. 148
149. 149
150. 150
151. 151
152. 152
153. 153
154. 154
155. 155
156. 156
157. 157
158. 158
159. 159

// Copyright 2025 Shota FUJI
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0

import OSLog
import RoonKit
import SwiftUI

struct ConnectedScreen: View {
	private let logger = Logger()

	@State private var model: ZoneDataModel
	@State private var browsing: BrowsingDataModel

	@State private var hierarchies = [
		BrowseService.Hierarchy.browse,
		BrowseService.Hierarchy.playlists,
		BrowseService.Hierarchy.albums,
		BrowseService.Hierarchy.artists,
		BrowseService.Hierarchy.composers,
		BrowseService.Hierarchy.genres,
		BrowseService.Hierarchy.settings,
		BrowseService.Hierarchy.internetRadio,
	]

	init(conn: Communicatable & Connectable) {
		let browsing = BrowsingDataModel(conn: conn)
		self.browsing = browsing

		model = ZoneDataModel(conn: conn, browsing: browsing)
	}

	private let actionQueue = DispatchQueue(
		label: "plac.ConnectedView.actionQueue"
	)

	var body: some View {
		VStack(spacing: 0) {
			NavigationSplitView {
				List(hierarchies, id: \.self, selection: $browsing.hierarchy) {
					hierarchy in
					switch hierarchy {
					case .browse:
						Text("Explore")
					case .playlists:
						Text("Playlists")
					case .settings:
						Text("Settings")
					case .albums:
						Text("Albums")
					case .artists:
						Text("Artists")
					case .genres:
						Text("Genres")
					case .composers:
						Text("Composers")
					case .search:
						Text("Search")
					case .internetRadio:
						Text("Internet Radio")
					}
				}
			} detail: {
				if browsing.hierarchy != nil {
					NavigationStack(path: $browsing.stack) {
						Browser(model: browsing)
							.navigationDestination(for: BrowseService.Item.self) { item in
								Browser(model: browsing, item: item)
							}
					}
				}
			}

			Divider()

			PlaybackBar()
				.frame(maxWidth: .infinity)
				.environment(model)
		}
		.task {
			// macOS and iPad OS renders `NavigationSplitView` with columns whereas iOS
			// renders stacked views. In columns layout, having no default selection or
			// placeholder content ("select a category") is not user-friendly.
			// In iPad, the situation got worse; it hides sidebar on startup in portrait
			// orientation, so user will see blank browsing area. Placeholder won't help
			// this case at all.
			#if os(macOS)
				let shouldHaveDefaultHierarchy = true
			#else
				let shouldHaveDefaultHierarchy =
					UIDevice.current.userInterfaceIdiom == .pad
			#endif

			if shouldHaveDefaultHierarchy {
				browsing.hierarchy = .browse
			}
		}
		.task {
			do {
				try await model.watchChanges()
			} catch {
				logger.error("Failed to watch zone changes: \(error)")
			}
		}
	}
}

// MARK: - Preview

private enum MockError: Error {
	case notImplementedInMock
}

private actor MockServer {}

extension MockServer: Communicatable {
	var messages: AsyncStream<Moo> {
		AsyncStream { stream in
			stream.finish()
		}
	}

	func request(_ msg: consuming Moo) async throws -> Moo {
		throw MockError.notImplementedInMock
	}

	func request(_ msg: consuming Moo, timeout: ContinuousClock.Instant.Duration)
		async throws -> Moo
	{
		throw MockError.notImplementedInMock
	}

	func send(_ msg: consuming Moo) async throws {}
}

extension MockServer: Connectable {
	var serverID: String { "mock-server" }
	var host: String { "192.0.2.1" }
	var port: UInt16 { 9003 }

	func connect() async throws {}
	func disconnect() {}
}

#Preview {
	ConnectedScreen(conn: MockServer())
}