#if canImport(SwiftUI)
import ComposableArchitecture2
import SwiftUI
import Testing
@testable import ComposableForms

@Suite
struct FormViewTests {
    @Test
    @MainActor
    func fieldBindingSyntaxBuilds() {
        let store = Store(initialState: ViewTestForm.State(value: ViewTestValue())) {
            ViewTestForm(fields: [])
        }

        let view = ComposableForm(store) {
            FormField(\.name) { $field in
                TextField("Name", text: $field)
                    .submitLabel(.next)
            }
        }

        _ = view
    }

    @Test
    @MainActor
    func fieldStyleSyntaxBuilds() {
        let store = Store(initialState: ViewTestForm.State(value: ViewTestValue())) {
            ViewTestForm(fields: [])
        }

        let view = ComposableForm(store) {
            FormField(\.name) { $field in
                TextField("Name", text: $field)
            }
        }
        .formFieldStyle(ViewTestFormFieldStyle())

        _ = view
    }

    @Test
    @MainActor
    func scopedFieldIDsMatchFormDefinitionIDs() {
        let fields: [FormViewFieldDefinition<ViewTestValue>] = FormScope(\.profile) {
            FormField(\.displayName) { $field in
                TextField("Display name", text: $field)
            }
        }

        #expect(
            fields.map(\.id) == [
                AnyHashable(
                    ScopedFormFieldID(
                        scope: AnyHashable(\ViewTestValue.profile),
                        field: AnyHashable(\ViewTestProfile.displayName)
                    )
                ),
            ]
        )
    }
}

private typealias ViewTestForm = ComposableForms.Form<ViewTestValue>

private struct ViewTestValue: Equatable {
    var name = ""
    var profile = ViewTestProfile()
}

private struct ViewTestProfile: Equatable {
    var displayName = ""
}

private struct ViewTestFormFieldStyle: FormFieldStyle {
    func makeBody(configuration: FormFieldStyleConfiguration) -> some View {
        configuration.content
    }
}
#endif