JustOneThing/WidgetShared/JustOneThingProvider.swift

//
//  JustOneThingProvider.swift
//  JustOneThing
//
//  Created by Alan Francis on 24/06/2023.
//

import WidgetKit
import SwiftUI
import Intents

struct ThingProvider: IntentTimelineProvider {
    func placeholder(in context: Context) -> ThingEntry {
        ThingEntry(date: Date(), configuration: ConfigurationIntent(), thing: .placeholder)
    }

    func getSnapshot(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (ThingEntry) -> ()) {
        let entry = ThingEntry(date: Date(), configuration: configuration, thing: .placeholder)
        context.
        completion(entry)
    }

    func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline<ThingEntry>) -> ()) {
        var entries: [ThingEntry] = []

        // Generate a timeline consisting of five entries an hour apart, starting from the current date.
        let currentDate = Date()
        for hourOffset in 0 ..< 5 {
            let entryDate = Calendar.current.date(byAdding: .hour, value: hourOffset, to: currentDate)!
            let entry = ThingEntry(date: entryDate, configuration: configuration, thing: .placeholder)
            entries.append(entry)
        }

        let timeline = Timeline(entries: entries, policy: .atEnd)
        completion(timeline)
    }

    func recommendations() -> [IntentRecommendation<ConfigurationIntent>] {
        return [
            IntentRecommendation(intent: ConfigurationIntent(), description: "My Intent Widget")
        ]
    }
}

struct ThingEntry: TimelineEntry {
    let date: Date
    let configuration: ConfigurationIntent
    let thing: Thing
}