import XCTest

/// Integration tests for contractor CRUD against the real local backend.
///
/// Test Plan IDs: CON-002, CON-005, CON-006
/// Data is seeded via API and cleaned up in tearDown.
final class ContractorIntegrationTests: AuthenticatedTestCase {

    override var useSeededAccount: Bool { true }

    // MARK: - CON-002: Create Contractor

    func testCON002_CreateContractorMinimalFields() {
        navigateToContractors()

        let addButton = app.buttons[AccessibilityIdentifiers.Contractor.addButton]
        let emptyState = app.otherElements[AccessibilityIdentifiers.Contractor.emptyStateView]
        let contractorList = app.otherElements[AccessibilityIdentifiers.Contractor.contractorsList]

        let loaded = addButton.waitForExistence(timeout: defaultTimeout)
            || emptyState.waitForExistence(timeout: 3)
            || contractorList.waitForExistence(timeout: 3)
        XCTAssertTrue(loaded, "Contractors screen should load")

        if addButton.exists && addButton.isHittable {
            addButton.forceTap()
        } else {
            let emptyAddButton = app.buttons.containing(
                NSPredicate(format: "label CONTAINS[c] 'Add' OR label CONTAINS[c] 'Create'")
            ).firstMatch
            emptyAddButton.waitForExistenceOrFail(timeout: defaultTimeout)
            emptyAddButton.forceTap()
        }

        let nameField = app.textFields[AccessibilityIdentifiers.Contractor.nameField]
        nameField.waitForExistenceOrFail(timeout: defaultTimeout)
        let uniqueName = "IntTest Contractor \(Int(Date().timeIntervalSince1970))"
        nameField.forceTap()
        nameField.typeText(uniqueName)

        let saveButton = app.buttons[AccessibilityIdentifiers.Contractor.saveButton]
        saveButton.scrollIntoView(in: app.scrollViews.firstMatch)
        saveButton.forceTap()

        let newContractor = app.staticTexts[uniqueName]
        XCTAssertTrue(
            newContractor.waitForExistence(timeout: longTimeout),
            "Newly created contractor should appear in list"
        )
    }

    // MARK: - CON-005: Edit Contractor

    func testCON005_EditContractor() {
        // Seed a contractor via API
        let contractor = cleaner.seedContractor(name: "Edit Target Contractor \(Int(Date().timeIntervalSince1970))")

        navigateToContractors()

        // Find and tap the seeded contractor
        let card = app.staticTexts[contractor.name]
        card.waitForExistenceOrFail(timeout: longTimeout)
        card.forceTap()

        // Tap edit
        let editButton = app.buttons[AccessibilityIdentifiers.Contractor.editButton]
        editButton.waitForExistenceOrFail(timeout: defaultTimeout)
        editButton.forceTap()

        // Update name
        let nameField = app.textFields[AccessibilityIdentifiers.Contractor.nameField]
        nameField.waitForExistenceOrFail(timeout: defaultTimeout)
        nameField.forceTap()
        nameField.press(forDuration: 1.0)
        let selectAll = app.menuItems["Select All"]
        if selectAll.waitForExistence(timeout: 2) {
            selectAll.tap()
        }

        let updatedName = "Updated Contractor \(Int(Date().timeIntervalSince1970))"
        nameField.typeText(updatedName)

        let saveButton = app.buttons[AccessibilityIdentifiers.Contractor.saveButton]
        saveButton.scrollIntoView(in: app.scrollViews.firstMatch)
        saveButton.forceTap()

        let updatedText = app.staticTexts[updatedName]
        XCTAssertTrue(
            updatedText.waitForExistence(timeout: longTimeout),
            "Updated contractor name should appear after edit"
        )
    }

    // MARK: - CON-007: Favorite Toggle

    func test20_toggleContractorFavorite() {
        // Seed a contractor via API and track it for cleanup
        let contractor = cleaner.seedContractor(name: "Favorite Toggle Contractor \(Int(Date().timeIntervalSince1970))")

        navigateToContractors()

        // Find and open the seeded contractor
        let card = app.staticTexts[contractor.name]
        card.waitForExistenceOrFail(timeout: longTimeout)
        card.forceTap()

        // Look for a favorite / star button in the detail view.
        // The button may be labelled "Favorite", carry a star SF symbol, or use a toggle.
        let favoriteButton = app.buttons.containing(
            NSPredicate(format: "label CONTAINS[c] 'Favorite' OR label CONTAINS[c] 'Star' OR label CONTAINS[c] 'favourite'")
        ).firstMatch

        guard favoriteButton.waitForExistence(timeout: defaultTimeout) else {
            XCTFail("Favorite/star button not found on contractor detail view")
            return
        }

        // Capture initial accessibility value / label to detect change
        let initialLabel = favoriteButton.label

        // First toggle — mark as favourite
        favoriteButton.forceTap()

        // Brief pause so the UI can settle after the API call
        _ = app.staticTexts.firstMatch.waitForExistence(timeout: 2)

        // The button's label or selected state should have changed
        let afterFirstToggleLabel = favoriteButton.label
        XCTAssertNotEqual(
            initialLabel, afterFirstToggleLabel,
            "Favorite button appearance should change after first toggle"
        )

        // Second toggle — un-mark as favourite, state should return to original
        favoriteButton.forceTap()

        _ = app.staticTexts.firstMatch.waitForExistence(timeout: 2)

        let afterSecondToggleLabel = favoriteButton.label
        XCTAssertEqual(
            initialLabel, afterSecondToggleLabel,
            "Favorite button appearance should return to original after second toggle"
        )
    }

    // MARK: - CON-008: Contractor by Residence Filter

    func test21_contractorByResidenceFilter() throws {
        // Seed a residence and a contractor linked to it
        let residence = cleaner.seedResidence(name: "Filter Test Residence \(Int(Date().timeIntervalSince1970))")
        let contractor = cleaner.seedContractor(
            name: "Residence Contractor \(Int(Date().timeIntervalSince1970))",
            fields: ["residence_id": residence.id]
        )

        navigateToResidences()

        // Open the seeded residence's detail view
        let residenceText = app.staticTexts[residence.name]
        residenceText.waitForExistenceOrFail(timeout: longTimeout)
        residenceText.forceTap()

        // Look for a Contractors section within the residence detail.
        // The section header text or accessibility element is checked first.
        let contractorsSectionHeader = app.staticTexts.containing(
            NSPredicate(format: "label CONTAINS[c] 'Contractor'")
        ).firstMatch

        guard contractorsSectionHeader.waitForExistence(timeout: defaultTimeout) else {
            throw XCTSkip("Residence detail does not expose a Contractors section — skipping filter test")
        }

        // Verify the seeded contractor appears in the residence's contractor list
        let contractorEntry = app.staticTexts[contractor.name]
        XCTAssertTrue(
            contractorEntry.waitForExistence(timeout: defaultTimeout),
            "Contractor '\(contractor.name)' should appear in the contractors section of residence '\(residence.name)'"
        )
    }

    // MARK: - CON-006: Delete Contractor

    func testCON006_DeleteContractor() {
        // Seed a contractor via API — don't track since we'll delete through UI
        let deleteName = "Delete Contractor \(Int(Date().timeIntervalSince1970))"
        TestDataSeeder.createContractor(token: session.token, name: deleteName)

        navigateToContractors()

        let target = app.staticTexts[deleteName]
        target.waitForExistenceOrFail(timeout: longTimeout)
        target.forceTap()

        let deleteButton = app.buttons[AccessibilityIdentifiers.Contractor.deleteButton]
        deleteButton.waitForExistenceOrFail(timeout: defaultTimeout)
        deleteButton.forceTap()

        let confirmButton = app.buttons[AccessibilityIdentifiers.Alert.confirmButton]
        let alertDelete = app.alerts.buttons.containing(
            NSPredicate(format: "label CONTAINS[c] 'Delete' OR label CONTAINS[c] 'Confirm'")
        ).firstMatch

        if confirmButton.waitForExistence(timeout: shortTimeout) {
            confirmButton.tap()
        } else if alertDelete.waitForExistence(timeout: shortTimeout) {
            alertDelete.tap()
        }

        let deletedContractor = app.staticTexts[deleteName]
        XCTAssertTrue(
            deletedContractor.waitForNonExistence(timeout: longTimeout),
            "Deleted contractor should no longer appear"
        )
    }
}