import Foundation
import SwiftData

// CloudKit-compatible (2.0): no unique constraints, inline defaults everywhere,
// and the relationship stored as optional (CloudKit requires it). `slots` keeps
// its name so existing stores lightweight-migrate; use `slotList` in code.
@Model
final class WeekPlan {
    var id: UUID = UUID()
    var weekStartDate: Date = Date()
    var createdAt: Date = Date()
    var updatedAt: Date = Date()
    var userRating: Int = 0   // 0 = unrated, 1 = liked, -1 = disliked

    @Relationship(deleteRule: .cascade)
    var slots: [MealSlot]? = []

    /// Non-optional facade over the CloudKit-required optional relationship.
    var slotList: [MealSlot] {
        get { slots ?? [] }
        set { slots = newValue }
    }

    init(
        id: UUID = UUID(),
        weekStartDate: Date,
        slots: [MealSlot] = [],
        createdAt: Date = Date(),
        updatedAt: Date = Date()
    ) {
        self.id = id
        self.weekStartDate = weekStartDate
        self.slots = slots
        self.createdAt = createdAt
        self.updatedAt = updatedAt
        self.userRating = 0
    }
}