73 lines
2.3 KiB
Swift
73 lines
2.3 KiB
Swift
//
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// EmployeesViewModel.swift
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// EmployeeDirectory
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//
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// Created by Matt Bruce on 1/20/25.
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//
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import Foundation
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/// ViewModel that will be bound to an Employees model and used
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/// specifically with the EmployeesViewController.
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@MainActor
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public class EmployeesViewModel: ObservableObject {
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private var serviceMode: EmployeeServiceMode = .production
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@Published public private(set) var employees: [Employee] = []
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@Published public private(set) var errorMessage: String? = nil
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@Published public private(set) var isLoading: Bool = false
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@Published public private(set) var hasMorePages: Bool = true
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private var currentPage = 1
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private let perPage = 10
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private var totalEmployees = 0
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public init() {}
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/// Fetch employees for the given page
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public func fetchEmployees(page: Int = 1) {
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// Prevent duplicate calls
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guard !isLoading else { return }
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isLoading = true
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Task {
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do {
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// Fetch employees using the paginated API
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let wrapper = try await MockEmployeeService.shared.getEmployees(.empty ,page: page, perPage: perPage)
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// Update published properties
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if page == 1 {
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employees = wrapper.employees // Replace list for the first page
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} else {
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employees.append(contentsOf: wrapper.employees) // Append for subsequent pages
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}
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totalEmployees = wrapper.total
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currentPage = page
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hasMorePages = employees.count < totalEmployees
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isLoading = false
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} catch {
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// Handle errors
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isLoading = false
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errorMessage = "An unexpected error occurred, please try to refresh."
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}
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}
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}
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/// Load the next page of employees
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public func loadNextPage() {
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guard hasMorePages else { return }
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fetchEmployees(page: currentPage + 1)
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}
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/// Change the service mode (e.g., production, malformed, empty)
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public func changeMode(to mode: EmployeeServiceMode) {
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serviceMode = mode
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currentPage = 1
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employees = []
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hasMorePages = true
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fetchEmployees(page: 1)
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}
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}
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