//
//  CameraFlowUITests.swift
//  PlantGuideUITests
//
//  Tests for camera permission handling and capture flow.
//

import XCTest

final class CameraFlowUITests: BaseUITestCase {

    // MARK: - Permission States

    @MainActor
    func testCameraViewShowsValidState() throws {
        // Camera is the default tab — no need to tap it
        launchClean()
        let camera = CameraScreen(app: app)
        XCTAssertTrue(camera.hasValidState(timeout: 10),
                      "Camera should show a valid state (capture, permission request, or denied)")
    }

    @MainActor
    func testCameraTabIsDefaultSelected() throws {
        launchClean()
        // Camera is the default tab — just verify it's selected
        TabBarScreen(app: app).assertSelected(UITestID.TabBar.camera)
    }

    // MARK: - Capture Button

    @MainActor
    func testCaptureButtonExistsWhenAuthorized() throws {
        launchClean()
        let camera = CameraScreen(app: app)

        // On simulator, camera may not be authorized — both states are valid
        if camera.captureButton.waitForExistence(timeout: 5) {
            XCTAssertTrue(camera.captureButton.isEnabled, "Capture button should be enabled")
        } else {
            // Permission not granted — verify a valid permission state is shown
            XCTAssertTrue(camera.hasValidState(), "Should show permission or capture UI")
        }
    }

    @MainActor
    func testCaptureButtonAccessibilityLabel() throws {
        launchClean()
        let camera = CameraScreen(app: app)

        if camera.captureButton.waitForExistence(timeout: 5) {
            XCTAssertFalse(camera.captureButton.label.isEmpty,
                           "Capture button should have an accessibility label")
        }
        // If no capture button (permission denied), test passes — no assertion needed
    }

    // MARK: - Error Handling

    @MainActor
    func testCameraErrorAlertDismissal() throws {
        launchClean()
        // Camera is default tab, so we're already there

        let errorAlert = app.alerts.firstMatch
        if errorAlert.waitForExistence(timeout: 5) {
            let okButton = errorAlert.buttons["OK"]
            if okButton.exists {
                okButton.tap()
                XCTAssertTrue(errorAlert.waitUntilGone(), "Alert should dismiss")
            }
        }
        // If no alert appears, the test passes — no error state to dismiss
    }
}