pulse-mobile/PulseHealth/Models/SavingsModels.swift

import Foundation

struct SavingsCategory: Codable, Identifiable {
    let id: Int
    var name: String
    var description: String?
    var isDeposit: Bool?
    var isCredit: Bool?
    var isAccount: Bool?
    var isRecurring: Bool?
    var isMulti: Bool?
    var isClosed: Bool?
    var currentAmount: Double?
    var depositAmount: Double?
    var interestRate: Double?
    var depositStartDate: String?
    var depositEndDate: String?
    var recurringAmount: Double?
    var recurringDay: Int?

    var icon: String {
        if isCredit == true { return "creditcard.fill" }
        if isDeposit == true { return "percent" }
        if isAccount == true { return "building.columns.fill" }
        if isRecurring == true { return "arrow.clockwise" }
        return "banknote.fill"
    }

    var colorHex: String {
        if isCredit == true { return "ff4757" }
        if isDeposit == true { return "ffa502" }
        if isAccount == true { return "7c3aed" }
        if isRecurring == true { return "00d4aa" }
        return "8888aa"
    }

    var typeLabel: String {
        if isCredit == true { return "Кредит \(Int(interestRate ?? 0))%" }
        if isDeposit == true { return "Вклад \(Int(interestRate ?? 0))%" }
        if isAccount == true { return "Счёт" }
        if isRecurring == true { return "Регулярные" }
        return "Накопление"
    }

    var typeEmoji: String {
        if isCredit == true { return "💳" }
        if isDeposit == true { return "🏦" }
        if isAccount == true { return "🏧" }
        if isRecurring == true { return "🔄" }
        return "💰"
    }

    enum CodingKeys: String, CodingKey {
        case id, name, description
        case isDeposit = "is_deposit"
        case isCredit = "is_credit"
        case isAccount = "is_account"
        case isRecurring = "is_recurring"
        case isMulti = "is_multi"
        case isClosed = "is_closed"
        case currentAmount = "current_amount"
        case depositAmount = "deposit_amount"
        case interestRate = "interest_rate"
        case depositStartDate = "deposit_start_date"
        case depositEndDate = "deposit_end_date"
        case recurringAmount = "recurring_amount"
        case recurringDay = "recurring_day"
    }
}

struct SavingsTransaction: Codable, Identifiable {
    let id: Int
    var categoryId: Int?
    var userId: Int?
    var amount: Double
    var type: String  // "deposit" или "withdrawal"
    var description: String?
    var date: String?
    var createdAt: String?
    var categoryName: String?
    var userName: String?

    var isDeposit: Bool { type == "deposit" }

    var dateFormatted: String {
        guard let d = date else { return "" }
        let parts = String(d.prefix(10)).split(separator: "-")
        guard parts.count == 3 else { return String(d.prefix(10)) }
        return "\(parts[2]).\(parts[1]).\(parts[0])"
    }

    var dateOnly: String { String(date?.prefix(10) ?? "") }

    enum CodingKeys: String, CodingKey {
        case id, amount, type, description, date
        case categoryId = "category_id"
        case userId = "user_id"
        case createdAt = "created_at"
        case categoryName = "category_name"
        case userName = "user_name"
    }
}

struct SavingsStats: Codable {
    var totalBalance: Double?
    var totalDeposits: Double?
    var totalWithdrawals: Double?
    var categoriesCount: Int?
    var monthlyPayments: Double?
    var monthlyPaymentDetails: [MonthlyPaymentDetail]?
    var overdueAmount: Double?
    var overdueCount: Int?
    var overdues: [OverduePayment]?

    enum CodingKeys: String, CodingKey {
        case totalBalance = "total_balance"
        case totalDeposits = "total_deposits"
        case totalWithdrawals = "total_withdrawals"
        case categoriesCount = "categories_count"
        case monthlyPayments = "monthly_payments"
        case monthlyPaymentDetails = "monthly_payment_details"
        case overdueAmount = "overdue_amount"
        case overdueCount = "overdue_count"
        case overdues
    }
}

struct MonthlyPaymentDetail: Codable, Identifiable {
    var id: Int { categoryId }
    var categoryId: Int
    var categoryName: String
    var amount: Double
    var day: Int

    enum CodingKeys: String, CodingKey {
        case categoryId = "category_id"
        case categoryName = "category_name"
        case amount, day
    }
}

struct OverduePayment: Codable, Identifiable {
    var id: String { "\(categoryId)-\(month)" }
    var categoryId: Int
    var categoryName: String
    var userId: Int?
    var userName: String?
    var amount: Double
    var dueDay: Int
    var daysOverdue: Int
    var month: String

    enum CodingKeys: String, CodingKey {
        case categoryId = "category_id"
        case categoryName = "category_name"
        case userId = "user_id"
        case userName = "user_name"
        case amount
        case dueDay = "due_day"
        case daysOverdue = "days_overdue"
        case month
    }
}

struct CreateSavingsTransactionRequest: Codable {
    var categoryId: Int
    var amount: Double
    var type: String
    var description: String?
    var date: String?

    enum CodingKeys: String, CodingKey {
        case amount, type, description, date
        case categoryId = "category_id"
    }
}

// MARK: - SavingsRecurringPlan

struct SavingsRecurringPlan: Codable, Identifiable {
    let id: Int
    var categoryId: Int?
    var userId: Int?
    var effective: String?
    var amount: Double
    var day: Int?
    var createdAt: String?

    enum CodingKeys: String, CodingKey {
        case id, amount, day
        case categoryId = "category_id"
        case userId = "user_id"
        case effective
        case createdAt = "created_at"
    }
}

struct CreateRecurringPlanRequest: Codable {
    var effective: String
    var amount: Double
    var day: Int?
}

struct UpdateRecurringPlanRequest: Codable {
    var effective: String?
    var amount: Double?
    var day: Int?
}