TestShopRepository.swift

//
//  TestShopRepository.swift
//  NativeAppTemplate
//

import Foundation
@testable import NativeAppTemplate

@MainActor
final class TestShopRepository: ShopRepositoryProtocol {
    var shops: [Shop] = []
    var state: DataState = .initial
    var limitCount: Int = 0
    var createdShopsCount: Int = 0
    var isEmpty: Bool {
        shops.isEmpty
    }

    /// A test-only
    var error: NativeAppTemplateAPIError?

    required init(shopsService: ShopsService) {
        createdShopsCount = shops.count
    }

    func findBy(id: String) -> Shop {
        guard let shop = shops.first(where: { $0.id == id }) else {
            fatalError("Test setup error: Shop with id '\(id)' not found. Available IDs: \(shops.map(\.id))")
        }
        return shop
    }

    func reload() {
        guard error == nil else {
            state = .failed
            return
        }

        state = .loading
        createdShopsCount = shops.count
        state = .hasData
    }

    func fetchDetail(id: String) async throws -> Shop {
        guard error == nil else {
            throw error!
        }

        guard let shop = shops.first(where: { $0.id == id }) else {
            throw NativeAppTemplateAPIError.requestFailed(nil, 404, "Shop with id '\(id)' not found")
        }
        return shop
    }

    func create(shop: Shop) async throws -> Shop {
        guard error == nil else {
            throw error!
        }

        shops.append(shop)
        createdShopsCount += 1
        return shop
    }

    func update(id: String, shop: Shop) async throws -> Shop {
        guard error == nil else {
            throw error!
        }

        if let index = shops.firstIndex(where: { $0.id == id }) {
            shops[index] = shop
        }
        return shop
    }

    func destroy(id: String) async throws {
        guard error == nil else {
            throw error!
        }

        shops.removeAll { $0.id == id }
    }

    /// A test-only
    func setShops(shops: [Shop]) {
        self.shops = shops
        createdShopsCount = shops.count
    }
}