import WidgetKit
import SwiftUI
import AppIntents

// MARK: - Shared Entry

struct KisaniEntry: TimelineEntry {
    let date: Date
    let task: WidgetTask?
    let allTasks: [WidgetTask]
    let streak: Int
}

// MARK: - Shared Provider

struct KisaniProvider: TimelineProvider {
    func placeholder(in context: Context) -> KisaniEntry {
        let sample = WidgetTask(id: UUID(), title: "Mums Birthday", dueDate: Date().addingTimeInterval(86400 * 60),
                                isComplete: false, quadrant: "Urgent + Important", category: "birthday")
        return KisaniEntry(date: .now, task: sample, allTasks: [sample], streak: 7)
    }

    func getSnapshot(in context: Context, completion: @escaping (KisaniEntry) -> Void) {
        let tasks = loadWidgetTasks()
        completion(KisaniEntry(date: .now, task: nextDueTask(from: tasks), allTasks: tasks, streak: loadWorkoutStreak()))
    }

    func getTimeline(in context: Context, completion: @escaping (Timeline<KisaniEntry>) -> Void) {
        let tasks  = loadWidgetTasks()
        let entry  = KisaniEntry(date: .now, task: nextDueTask(from: tasks), allTasks: tasks, streak: loadWorkoutStreak())
        // Refresh every 30 minutes or when app triggers WidgetCenter.reloadAllTimelines()
        let next   = Calendar.current.date(byAdding: .minute, value: 30, to: .now)!
        completion(Timeline(entries: [entry], policy: .after(next)))
    }
}

// MARK: - Day Progress Widget ("Day done %")

struct DayProgressWidget: Widget {
    let kind = "KisaniDayProgress"
    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: KisaniProvider()) { _ in
            ProgressDotView(period: .day, accent: WidgetTheme.accent)
        }
        .configurationDisplayName("Day Progress")
        .description("How much of today has elapsed, as a dot grid.")
        .supportedFamilies([.systemSmall, .systemMedium])
    }
}

// MARK: - Lock Screen Widgets

struct LockScreenWidget: Widget {
    let kind = "KisaniLockScreen"

    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: KisaniProvider()) { entry in
            if let task = entry.task {
                LockScreenRectView(task: task)
            } else {
                LockScreenRectView(task: WidgetTask(id: UUID(), title: "No tasks",
                    dueDate: nil, isComplete: false, quadrant: "Urgent + Important", category: "reminder"))
            }
        }
        .configurationDisplayName("Task (Lock Screen)")
        .description("Glass countdown on your lock screen.")
        .supportedFamilies([.accessoryRectangular])
    }
}

struct LockScreenCircularWidget: Widget {
    let kind = "KisaniLockCircle"

    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: KisaniProvider()) { entry in
            if let task = entry.task {
                LockScreenCircularView(task: task)
            } else {
                LockScreenCircularView(task: WidgetTask(id: UUID(), title: "–",
                    dueDate: nil, isComplete: false, quadrant: "Urgent + Important", category: "reminder"))
            }
        }
        .configurationDisplayName("Days Left (Lock Screen)")
        .description("Circular countdown on your lock screen.")
        .supportedFamilies([.accessoryCircular])
    }
}

// MARK: - Widget Bundle

@main
struct KisaniWidgetBundle: WidgetBundle {
    var body: some Widget {
        EventBarsWidget()
        MyTasksWidget()
        DayProgressWidget()
        LockScreenWidget()
        LockScreenCircularWidget()
        TaskLiveActivity()
    }
}