//
//  MockEmployeeService.swift
//  EmployeeDirectory
//
//  Created by Matt Bruce on 3/4/25.
//
import Foundation

// Mock Service Implementation for testing & previews.
struct MockEmployeeService: EmployeeServiceProtocol {
    static let sample = createUser(page: 1, index: 1)
    
    static func createUser(page: Int?, index: Int) -> Employee {
        let id = UUID()
        return Employee(
            uuid: id,
            firstName: "First \(index + ((page ?? 1) - 1) * 20)",
            lastName: "Last \(index + ((page ?? 1) - 1) * 20)",
            phoneNumber: "555555\(1000 + index)",
            emailAddress: "user\(index)@example.com",
            biography: "Biography for employee \(index)",
            photoURLSmall: "https://robohash.org/\(id.uuidString).png?size=100x100&set=set1",
            photoURLLarge: "https://robohash.org/\(id.uuidString).png?size=400x400&set=set1"
        )
    }
    func getUsers(page: Int?) async throws -> Employees {
        // Simulate network delay.
        try await Task.sleep(nanoseconds: 500_000_000)
        
        // Create dummy data (20 employees per page).
        let dummyEmployees: [Employee] = (0..<20).map { i in
            Self.createUser(page: page, index: i)
        }
        
        // Simulate that there are more pages if page is less than 5.
        let hasNext = (page ?? 1) < 5
        
        return Employees(result: dummyEmployees, hasNextPage: hasNext)
    }
}