//
//  AllMoods.swift
//  Feels (iOS)
//
//  Created by Trey Tartt on 2/6/22.
//

import SwiftUI

struct LongestStreakTemplate: View, SharingTemplate {
    static var description: String {
        "Share your longest streak!!!!"
    }
    
    @State private var showSharingTemplate = false

    var isPreview: Bool
    var startDate: Date
    var endDate: Date
    
    var entries: [MoodEntry]
    
    init(isPreview: Bool, startDate: Date, endDate: Date) {
        self.isPreview = isPreview
        self.startDate = startDate
        self.endDate = endDate
        
        /*
            get all
            Split on missing entries
            Longest subarray
         */
        entries = [MoodEntry]()
//        entries = PersistenceController.shared.randomEntries(count: 10)
    }
    
    var image: UIImage {
        let image = shit.snapshot()
        return image
    }
    
    var preview: some View {
        ZStack {
            VStack {
                HStack {
                    Text("Longest Streak")
                    Spacer()
                    Text(String(entries.count))
                }
                Text("From")
                HStack {
                    Text(String(entries.first?.forDate?.description ?? ""))
                    Text("-")
                    Text(String(entries.last?.forDate?.description ?? ""))
                }
            }
        }
        .background(
            Color.red
        )
    }
    
    var shit: some View {
        ZStack {
            VStack {
                HStack {
                    Text("Longest Streak")
                    Spacer()
                    Text(String(entries.count))
                }
                Text("From")
                HStack {
                    Text(String(entries.first?.forDate?.description ?? ""))
                    Text("-")
                    Text(String(entries.last?.forDate?.description ?? ""))
                }
            }
        }
        .background(
            Color.red
        )
    }
    
    var mainView: some View {
        ZStack {
            shit
            
            VStack {
                Spacer()
                
                HStack {
                    Spacer()
                    
                    Button(action: {
                        showSharingTemplate = true
                    }, label: {
                        Image(systemName: "square.and.arrow.up")
                            .foregroundColor(.black)
                    })
                }
            }
        }
        .sheet(isPresented: $showSharingTemplate) {
            ActivityViewController(activityItems: [self.image])
        }
        .padding()
        .background(
            Color.red
        )
    }
    
    var body: some View {
        if isPreview {
            preview
        } else {
            mainView
        }
    }
}

struct CurrentStreakSharingTemplate_Previews: PreviewProvider {
    static var previews: some View {
        LongestStreakTemplate(isPreview: false, startDate: Date(), endDate: Date())
        
        LongestStreakTemplate(isPreview: true, startDate: Date(), endDate: Date())
    }
}