//
//  TrashModel.swift
//  TrashTrack
//
//  Created by Oliver Hnát on 12.01.2024.
//

import Foundation
import SwiftUI

struct Trash {
    var type: String
    var color: Color
    var image: String
}

struct TrashEvent: Identifiable {
    var id: Int
    var trash: Trash
    var date: Date
}

struct TrashModel {
    private (set) var trashTypes: [Trash]
    private var trashEvents: [TrashEvent]
    
    init() {
        self.trashTypes = [
            Trash(type: "plastic", color: .orange, image: "waterbottle"),
            Trash(type: "paper", color: .blue, image: "newspaper"),
            Trash(type: "bio", color: .green, image: "tree"),
            Trash(type: "residual", color: .gray, image: "trash")
        ]
        
        self.trashEvents = []
        let numberOfEvents = 10
        let start = 1
        for i in start..<numberOfEvents {
            self.trashEvents.append(
                TrashEvent(
                    id: i,
                    trash: self.trashTypes[0],
                    date: Calendar.current.date(byAdding: .day, value: 3 + 7*i, to: Date())!
                )
            )
        }
        
        for i in start..<numberOfEvents {
            self.trashEvents.append(
                TrashEvent(
                    id: i + 4 + 7,
                    trash: self.trashTypes[1],
                    date: Calendar.current.date(byAdding: .day, value: 4 + 7 + 7*i, to: Date())!
                )
            )
        }
        
        for i in start..<numberOfEvents {
            self.trashEvents.append(
                TrashEvent(
                    id: i + 5,
                    trash: self.trashTypes[2],
                    date: Calendar.current.date(byAdding: .day, value: 5 + 7*i, to: Date())!
                )
            )
        }
        
        for i in start..<numberOfEvents {
            self.trashEvents.append(
                TrashEvent(
                    id: i + 6 + 7,
                    trash: self.trashTypes[3],
                    date: Calendar.current.date(byAdding: .day, value: 6 +  7 + 7*i, to: Date())!
                )
            )
        }
        
        for i in 1..<30 {
            if !self.trashEvents.contains(where: { $0.id == i }) {
                self.trashEvents.append(
                    TrashEvent(
                        id: i,
                        trash: self.trashTypes[3],
                        date: Calendar.current.date(byAdding: .day, value: 6 +  7 + 7*i, to: Date())!
                    )
                )
            }
        }
        self.trashEvents.sort(by: { $0.id < $1.id })
    }
    
    func getTrashEvents() -> [TrashEvent] {
        return self.trashEvents
    }
}