// ── Main Content View with Tab Navigation ─────────────────────

import SwiftUI

struct ContentView: View {
    @EnvironmentObject var timerStore: TimerStore
    @State private var selectedTab: Tab = .timeline

    enum Tab: String, CaseIterable {
        case timeline = "Timeline"
        case focus = "Focus"
        case history = "History"
        case settings = "Settings"

        var icon: String {
            switch self {
            case .timeline: return "clock.fill"
            case .focus: return "target"
            case .history: return "chart.bar.fill"
            case .settings: return "gearshape.fill"
            }
        }
    }

    var body: some View {
        TabView(selection: $selectedTab) {
            TimelineView()
                .tabItem {
                    Label(Tab.timeline.rawValue, systemImage: Tab.timeline.icon)
                }
                .tag(Tab.timeline)

            PomodoroView()
                .tabItem {
                    Label(Tab.focus.rawValue, systemImage: Tab.focus.icon)
                }
                .tag(Tab.focus)

            HistoryView()
                .tabItem {
                    Label(Tab.history.rawValue, systemImage: Tab.history.icon)
                }
                .tag(Tab.history)

            SettingsView()
                .tabItem {
                    Label(Tab.settings.rawValue, systemImage: Tab.settings.icon)
                }
                .tag(Tab.settings)
        }
        .tint(CMColors.accent)
    }
}