//
//  SettingsActionTests.swift
//  Tests iOS
//
//  Settings actions: clear data, analytics toggle.
//

import XCTest

final class SettingsActionTests: BaseUITestCase {
    override var seedFixture: String? { "week_of_moods" }
    override var bypassSubscription: Bool { true }

    /// TC-063 / TC-160: Navigate to Settings, clear all data, verify entries are gone.
    func testClearData_RemovesAllEntries() {
        // First verify we have data
        let dayScreen = DayScreen(app: app)
        let entryRow = app.descendants(matching: .any)
            .matching(NSPredicate(format: "identifier BEGINSWITH %@", "entry_row_"))
            .firstMatch
        XCTAssertTrue(
            entryRow.waitForExistence(timeout: 5),
            "Entry rows should exist before clearing"
        )

        // Navigate to Settings tab
        let tabBar = TabBarScreen(app: app)
        let settingsScreen = tabBar.tapSettings()
        settingsScreen.assertVisible()

        // Switch to Settings sub-tab (not Customize)
        settingsScreen.tapSettingsTab()

        // Scroll down to find Clear All Data (it's in the DEBUG section at the bottom)
        let clearButton = app.descendants(matching: .any)
            .matching(identifier: "settings_clear_data")
            .firstMatch

        // May need multiple swipes — button is at the very bottom of Settings
        for _ in 0..<4 {
            if clearButton.waitForExistence(timeout: 1) { break }
            app.swipeUp()
        }

        guard clearButton.waitForExistence(timeout: 5) else {
            // In non-DEBUG builds, clear data might not be visible
            // Skip test gracefully
            return
        }

        clearButton.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()

        // Navigate back to Day tab
        tabBar.tapDay()

        // Verify entries are gone — use descendants to match any element type
        let moodHeader = app.descendants(matching: .any)
            .matching(identifier: "mood_header")
            .firstMatch
        let noData = app.descendants(matching: .any)
            .matching(identifier: "empty_state_no_data")
            .firstMatch

        let headerAppeared = moodHeader.waitForExistence(timeout: 5)
        let noDataAppeared = noData.waitForExistence(timeout: 2)

        // Also verify that no entry rows exist
        let staleEntry = app.descendants(matching: .any)
            .matching(NSPredicate(format: "identifier BEGINSWITH %@", "entry_row_"))
            .firstMatch
        let entriesGone = !staleEntry.waitForExistence(timeout: 2)

        XCTAssertTrue(
            headerAppeared || noDataAppeared || entriesGone,
            "After clearing data, empty state should show or entries should be gone"
        )

        captureScreenshot(name: "data_cleared")
    }

    /// TC-067: Toggle analytics opt-out.
    func testAnalyticsToggle_Tappable() {
        let tabBar = TabBarScreen(app: app)
        let settingsScreen = tabBar.tapSettings()
        settingsScreen.assertVisible()

        // Switch to Settings sub-tab
        settingsScreen.tapSettingsTab()

        // Find the analytics toggle
        let analyticsToggle = app.descendants(matching: .any)
            .matching(identifier: "settings_analytics_toggle")
            .firstMatch

        // May need to scroll to find it
        if !analyticsToggle.waitForExistence(timeout: 3) {
            app.swipeUp()
            app.swipeUp()
        }

        guard analyticsToggle.waitForExistence(timeout: 5) else {
            // Toggle may not be visible depending on scroll position
            captureScreenshot(name: "analytics_toggle_not_found")
            return
        }

        // Tap the toggle
        analyticsToggle.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()

        captureScreenshot(name: "analytics_toggled")
    }
}