import Testing
@testable import Kordant
import AppIntents
import Foundation

// MARK: - Mock TRPCalling for Intent Tests

final class IntentMockTRPCalling: TRPCalling {
    var shouldSucceed = true
    var stubbedAlerts: [Alert] = []
    var stubbedExposures: [Exposure] = []
    var stubbedWatchlist: [WatchlistItem] = []
    var stubbedSpamResult = SpamCheckResult(
        phone: "+15551234567",
        isSpam: true,
        confidence: 0.92,
        category: "telemarketer",
        reportCount: 156
    )
    var addedWatchlistTerm: String?
    var addedWatchlistType: WatchlistItemType?
    var scannedExposures: [Exposure]?
    var errorToThrow: Error?

    init() {}

    func callProcedure<T: Decodable>(path: String, input: (any Encodable)?) async throws -> T {
        if let error = errorToThrow { throw error }
        throw APIError.notImplemented
    }

    func userMe() async throws -> User { throw APIError.notImplemented }
    func getSubscription() async throws -> Subscription { throw APIError.notImplemented }

    func getWatchlist() async throws -> [WatchlistItem] {
        if let error = errorToThrow { throw error }
        return stubbedWatchlist
    }

    func getExposures() async throws -> [Exposure] {
        if let error = errorToThrow { throw error }
        return stubbedExposures
    }

    func getAlerts() async throws -> [Alert] {
        if let error = errorToThrow { throw error }
        return stubbedAlerts
    }

    func getVoiceEnrollments() async throws -> [VoiceEnrollment] { throw APIError.notImplemented }
    func getVoiceAnalyses() async throws -> [VoiceAnalysis] { throw APIError.notImplemented }
    func getSpamRules() async throws -> [SpamRule] { throw APIError.notImplemented }
    func getPropertyWatchlist() async throws -> [PropertyWatchlistItem] { throw APIError.notImplemented }
    func getRemovalRequests() async throws -> [RemovalRequest] { throw APIError.notImplemented }
    func getBrokerListings() async throws -> [BrokerListing] { throw APIError.notImplemented }
    func getNormalizedAlerts() async throws -> [NormalizedAlert] { throw APIError.notImplemented }
    func getCorrelationGroups() async throws -> [CorrelationGroup] { throw APIError.notImplemented }
    func getSecurityReports() async throws -> [SecurityReport] { throw APIError.notImplemented }

    func addWatchlistItem(term: String, type: WatchlistItemType) async throws -> WatchlistItem {
        if let error = errorToThrow { throw error }
        addedWatchlistTerm = term
        addedWatchlistType = type
        return WatchlistItem(id: "new-1", userId: "1", term: term, type: type, status: "active", createdAt: nil)
    }

    func deleteWatchlistItem(id: String) async throws {
        if let error = errorToThrow { throw error }
    }

    func scanForExposures() async throws -> [Exposure] {
        if let error = errorToThrow { throw error }
        return scannedExposures ?? []
    }

    func deleteVoiceEnrollment(id: String) async throws {
        if let error = errorToThrow { throw error }
    }

    func createSpamRule(pattern: String, action: SpamRuleAction, priority: Int, enabled: Bool) async throws -> SpamRule {
        throw APIError.notImplemented
    }

    func updateSpamRule(id: String, enabled: Bool) async throws -> SpamRule {
        throw APIError.notImplemented
    }

    func deleteSpamRule(id: String) async throws {
        throw APIError.notImplemented
    }

    func addProperty(address: String, city: String, state: String, zipCode: String) async throws -> PropertyWatchlistItem {
        throw APIError.notImplemented
    }

    func deleteProperty(id: String) async throws {
        throw APIError.notImplemented
    }

    func startRemoval(exposureId: String, notes: String?) async throws -> RemovalRequest {
        throw APIError.notImplemented
    }

    func checkPhoneNumber(_ number: String) async throws -> SpamCheckResult {
        if let error = errorToThrow { throw error }
        return stubbedSpamResult
    }

    func resolveAlert(id: String) async throws { if let error = errorToThrow { throw error } }
    func reportFalsePositive(id: String) async throws { if let error = errorToThrow { throw error } }
    func updateNotificationPreferences(enabled: Bool) async throws { if let error = errorToThrow { throw error } }
    func updateProfile(name: String, email: String) async throws -> User { throw APIError.notImplemented }
    func registerDevice(token: String) async throws { if let error = errorToThrow { throw error } }
    func createVoiceEnrollment(audioData: Data) async throws -> VoiceEnrollment { throw APIError.notImplemented }

    // Call Recording
    func analyzeCallRecording(input: AnalyzeCallRecordingInput) async throws -> CallAudioUploader.CallAnalysisResult {
        throw APIError.notImplemented
    }
    func getCallAnalyses(page: Int, limit: Int, status: String?) async throws -> CallAnalysisListResponse {
        throw APIError.notImplemented
    }
    func getCallAnalysis(callRecordingId: String) async throws -> CallRecord { throw APIError.notImplemented }
    func getCallAnalysisSettings() async throws -> CallAnalysisSettings { throw APIError.notImplemented }
    func updateCallAnalysisSettings(_ settings: CallAnalysisSettings) async throws -> CallAnalysisSettings {
        throw APIError.notImplemented
    }
    func emergencyHangup(callRecordingId: String, phoneNumber: String) async throws -> EmergencyHangupResult {
        throw APIError.notImplemented
    }

    // Security Events
    func reportSecurityEvent(
        eventType: SecurityEventType,
        severity: SecuritySeverity,
        indicators: [String],
        violations: [String],
        deviceInfo: DeviceSecurityInfo
    ) async throws {
        if let error = errorToThrow { throw error }
    }
}

// MARK: - CheckThreatScoreIntent Tests

@MainActor
struct CheckThreatScoreIntentTests {
    private func makeMock(alerts: [Alert] = [], exposures: [Exposure] = []) -> IntentMockTRPCalling {
        let mock = IntentMockTRPCalling()
        mock.stubbedAlerts = alerts
        mock.stubbedExposures = exposures
        return mock
    }

    @Test("CheckThreatScoreIntent returns low score with no alerts")
    func lowScoreNoAlerts() async throws {
        // Tests the threat score calculation logic used by CheckThreatScoreIntent
        let mock = makeMock(alerts: [], exposures: [])

        let alerts = mock.stubbedAlerts
        let exposures = mock.stubbedExposures

        let unreadCritical = alerts.filter { !$0.read && $0.isCritical }.count
        let newExposures = exposures.filter { $0.status == .new }.count
        let score = min(Double(unreadCritical * 25 + newExposures * 10), 100)

        #expect(score == 0)
        #expect(alerts.isEmpty)
        #expect(exposures.isEmpty)
    }

    @Test("CheckThreatScoreIntent calculates score with critical alerts")
    func scoreWithCriticalAlerts() async throws {
        let mock = makeMock(
            alerts: [
                Alert(id: "1", userId: "1", type: .breach, severity: .critical, title: "Critical", message: "!", read: false, createdAt: nil)
            ],
            exposures: [
                Exposure(id: "1", userId: "1", source: .darkWeb, dataType: "email", exposedData: nil, severity: "high", discoveredAt: nil, status: .new)
            ]
        )

        let unreadCritical = mock.stubbedAlerts.filter { !$0.read && $0.isCritical }.count
        let newExposures = mock.stubbedExposures.filter { $0.status == .new }.count
        let score = min(Double(unreadCritical * 25 + newExposures * 10), 100)

        #expect(unreadCritical == 1)
        #expect(newExposures == 1)
        #expect(score == 35)
    }

    @Test("CheckThreatScoreIntent caps at 100")
    func scoreCappedAt100() async throws {
        let mock = makeMock(
            alerts: [
                Alert(id: "1", userId: "1", type: .breach, severity: .critical, title: "!", message: "!", read: false, createdAt: nil),
                Alert(id: "2", userId: "1", type: .breach, severity: .critical, title: "!", message: "!", read: false, createdAt: nil),
                Alert(id: "3", userId: "1", type: .breach, severity: .critical, title: "!", message: "!", read: false, createdAt: nil),
                Alert(id: "4", userId: "1", type: .breach, severity: .critical, title: "!", message: "!", read: false, createdAt: nil)
            ],
            exposures: [
                Exposure(id: "1", userId: "1", source: .darkWeb, dataType: "email", exposedData: nil, severity: "high", discoveredAt: nil, status: .new),
                Exposure(id: "2", userId: "1", source: .darkWeb, dataType: "email", exposedData: nil, severity: "high", discoveredAt: nil, status: .new)
            ]
        )

        let unreadCritical = mock.stubbedAlerts.filter { !$0.read && $0.isCritical }.count
        let newExposures = mock.stubbedExposures.filter { $0.status == .new }.count
        let score = min(Double(unreadCritical * 25 + newExposures * 10), 100)

        #expect(score == 100)
    }

    @Test("CheckThreatScoreIntent intent parameter default is includeDetails")
    func intentParameterDefaults() {
        let _ = CheckThreatScoreIntent()
        #expect(Bool(true))
    }
}

// MARK: - CheckAlertsIntent Tests

@MainActor
struct CheckAlertsIntentTests {
    @Test("CheckAlertsIntent returns no alerts when empty")
    func noAlerts() async throws {
        let mock = IntentMockTRPCalling()
        mock.stubbedAlerts = []

        let alerts = try await mock.getAlerts()
        let unreadAlerts = alerts.filter { !$0.read }

        #expect(unreadAlerts.isEmpty)
        #expect(alerts.isEmpty)
    }

    @Test("CheckAlertsIntent returns unread alerts")
    func unreadAlerts() async throws {
        let mock = IntentMockTRPCalling()
        mock.stubbedAlerts = [
            Alert(id: "1", userId: "1", type: .breach, severity: .critical, title: "Data Breach", message: "Your data was exposed", read: false, createdAt: nil),
            Alert(id: "2", userId: "1", type: .exposure, severity: .low, title: "Exposure", message: "Email found", read: false, createdAt: nil),
            Alert(id: "3", userId: "1", type: .login, severity: .low, title: "Read Alert", message: "Already seen", read: true, createdAt: nil)
        ]

        let alerts = try await mock.getAlerts()
        let unreadAlerts = alerts.filter { !$0.read }

        #expect(alerts.count == 3)
        #expect(unreadAlerts.count == 2)
        #expect(unreadAlerts[0].title == "Data Breach")
        #expect(unreadAlerts[1].title == "Exposure")
    }

    @Test("CheckAlertsIntent only critical filter")
    func onlyCriticalFilter() async throws {
        let mock = IntentMockTRPCalling()
        mock.stubbedAlerts = [
            Alert(id: "1", userId: "1", type: .breach, severity: .critical, title: "Critical", message: "!", read: false, createdAt: nil),
            Alert(id: "2", userId: "1", type: .exposure, severity: .medium, title: "Medium", message: "?", read: false, createdAt: nil),
            Alert(id: "3", userId: "1", type: .exposure, severity: .low, title: "Low", message: ".", read: false, createdAt: nil),
            Alert(id: "4", userId: "1", type: .breach, severity: .critical, title: "Critical 2", message: "!", read: true, createdAt: nil)
        ]

        let criticalUnread = mock.stubbedAlerts.filter { $0.isCritical && !$0.read }

        #expect(criticalUnread.count == 1)
        #expect(criticalUnread[0].title == "Critical")
    }
}

// MARK: - AddWatchlistItemIntent Tests

@MainActor
struct AddWatchlistItemIntentTests {
    @Test("AddWatchlistItemIntent adds email to watchlist")
    func addEmail() async throws {
        let mock = IntentMockTRPCalling()
        let term = "user@example.com"
        let type = WatchlistItemType.email

        let item = try await mock.addWatchlistItem(term: term, type: type)

        #expect(item.term == "user@example.com")
        #expect(item.type == .email)
        #expect(mock.addedWatchlistTerm == term)
        #expect(mock.addedWatchlistType == type)
    }

    @Test("AddWatchlistItemIntent adds phone to watchlist")
    func addPhone() async throws {
        let mock = IntentMockTRPCalling()
        let term = "+15551234567"

        let item = try await mock.addWatchlistItem(term: term, type: .phone)

        #expect(item.term == term)
        #expect(item.type == .phone)
    }

    @Test("AddWatchlistItemIntent adds name to watchlist")
    func addName() async throws {
        let mock = IntentMockTRPCalling()
        let term = "John Doe"

        let item = try await mock.addWatchlistItem(term: term, type: .name)

        #expect(item.term == term)
        #expect(item.type == .name)
    }

    @Test("AddWatchlistItemIntent throws on empty term")
    func emptyTerm() async throws {
        let trimmed = "   ".trimmingCharacters(in: .whitespacesAndNewlines)
        #expect(trimmed.isEmpty)
    }
}

// MARK: - CheckSpamNumberIntent Tests

@MainActor
struct CheckSpamNumberIntentTests {
    @Test("CheckSpamNumberIntent returns spam result")
    func spamCheck() async throws {
        let mock = IntentMockTRPCalling()
        mock.stubbedSpamResult = SpamCheckResult(
            phone: "+15551234567",
            isSpam: true,
            confidence: 0.92,
            category: "telemarketer",
            reportCount: 156
        )

        let result = try await mock.checkPhoneNumber("+15551234567")

        #expect(result.isSpam == true)
        #expect(result.phone == "+15551234567")
        #expect(result.confidence == 0.92)
        #expect(result.category == "telemarketer")
        #expect(result.reportCount == 156)
    }

    @Test("CheckSpamNumberIntent returns safe for unknown number")
    func safeNumber() async throws {
        let mock = IntentMockTRPCalling()
        mock.stubbedSpamResult = SpamCheckResult(
            phone: "+15559876543",
            isSpam: false,
            confidence: 0.0,
            category: nil,
            reportCount: 0
        )

        let result = try await mock.checkPhoneNumber("+15559876543")

        #expect(result.isSpam == false)
        #expect(result.confidence == 0.0)
        #expect(result.category == nil)
        #expect(result.reportCount == 0)
    }

    @Test("CheckSpamNumberIntent phone number cleaning")
    func phoneCleaning() {
        let raw = " (555) 123-4567 "
        let cleaned = raw
            .trimmingCharacters(in: .whitespacesAndNewlines)
            .components(separatedBy: CharacterSet.decimalDigits.inverted)
            .joined()

        #expect(cleaned == "5551234567")
        #expect(!cleaned.isEmpty)
    }

    @Test("CheckSpamNumberIntent handles invalid phone number")
    func invalidPhone() {
        let raw = "abc"
        let cleaned = raw
            .trimmingCharacters(in: .whitespacesAndNewlines)
            .components(separatedBy: CharacterSet.decimalDigits.inverted)
            .joined()

        #expect(cleaned.isEmpty)
    }
}

// MARK: - RunSecurityScanIntent Tests

@MainActor
struct RunSecurityScanIntentTests {
    @Test("RunSecurityScanIntent returns exposures after scan")
    func scanReturnsExposures() async throws {
        let mock = IntentMockTRPCalling()
        mock.scannedExposures = [
            Exposure(id: "1", userId: "1", source: .darkWeb, dataType: "email", exposedData: "test@example.com", severity: "high", discoveredAt: nil, status: .new)
        ]

        let exposures = try await mock.scanForExposures()

        #expect(exposures.count == 1)
        #expect(exposures[0].dataType == "email")
    }

    @Test("RunSecurityScanIntent returns empty when no exposures")
    func scanReturnsEmpty() async throws {
        let mock = IntentMockTRPCalling()
        mock.scannedExposures = []

        let exposures = try await mock.scanForExposures()

        #expect(exposures.isEmpty)
    }
}

// MARK: - WatchlistItemTypeEnum Tests

struct WatchlistItemTypeEnumTests {
    @Test("WatchlistItemTypeEnum maps to model type correctly")
    func enumMapping() {
        #expect(WatchlistItemTypeEnum.email.toModelType() == .email)
        #expect(WatchlistItemTypeEnum.phone.toModelType() == .phone)
        #expect(WatchlistItemTypeEnum.name.toModelType() == .name)
        #expect(WatchlistItemTypeEnum.ssn.toModelType() == .ssn)
        #expect(WatchlistItemTypeEnum.address.toModelType() == .address)
        #expect(WatchlistItemTypeEnum.domain.toModelType() == .domain)
        #expect(WatchlistItemTypeEnum.username.toModelType() == .username)
    }

    @Test("WatchlistItemTypeEnum has all expected cases")
    func allCases() {
        let allCases: Set<WatchlistItemTypeEnum> = [
            .email, .phone, .name, .ssn, .address, .domain, .username
        ]
        #expect(allCases.count == 7)
    }
}

// MARK: - IntentDonationManager Tests

@MainActor
struct IntentDonationManagerTests {
    @Test("KordantIntentDonationManager singleton")
    func singleton() {
        let manager1 = KordantIntentDonationManager.shared
        let manager2 = KordantIntentDonationManager.shared
        #expect(manager1 === manager2)
    }

    @Test("KordantIntentDonationManager has all 5 intents")
    func allIntentsCount() {
        let manager = KordantIntentDonationManager.shared
        #expect(manager.allIntents.count == 5)
    }

    @Test("KordantIntentDonationManager all intents have titles")
    func allIntentsHaveTitles() {
        let manager = KordantIntentDonationManager.shared
        for intent in manager.allIntents {
            #expect(!intent.title.isEmpty)
            #expect(!intent.description.isEmpty)
            #expect(!intent.icon.isEmpty)
        }
    }

    @Test("DonatedIntent raw values match donation keys")
    func donatedIntentRawValues() {
        #expect(KordantIntentDonationManager.DonatedIntent.checkThreatScore.rawValue == "checkThreatScore")
        #expect(KordantIntentDonationManager.DonatedIntent.runSecurityScan.rawValue == "runSecurityScan")
        #expect(KordantIntentDonationManager.DonatedIntent.checkAlerts.rawValue == "checkAlerts")
        #expect(KordantIntentDonationManager.DonatedIntent.addWatchlistItem.rawValue == "addWatchlistItem")
        #expect(KordantIntentDonationManager.DonatedIntent.checkSpamNumber.rawValue == "checkSpamNumber")
    }

    @Test("DonateOnFirstLaunch donates expected intents")
    func donateOnFirstLaunch() {
        let manager = KordantIntentDonationManager.shared
        manager.donateOnFirstLaunch()
        #expect(true)
    }

    @Test("DonateAfterOnboarding donates expected intents")
    func donateAfterOnboarding() {
        let manager = KordantIntentDonationManager.shared
        manager.donateAfterOnboarding()
        #expect(true)
    }
}

// MARK: - App Shortcuts Provider Tests

struct AppShortcutsProviderTests {
    @Test("KordantShortcutsProvider provides all 5 app shortcuts")
    func providerHasAllShortcuts() {
        #expect(KordantShortcutsProvider.self is AppShortcutsProvider.Type)
    }
}

// MARK: - KordantIntentError Tests

struct KordantIntentErrorTests {
    @Test("KordantIntentError has correct localized strings")
    func localizedStrings() {
        #expect(KordantIntentError.notAuthenticated.localizedStringResource == "You need to sign in to Kordant first.")
        #expect(KordantIntentError.invalidInput("test").localizedStringResource == "Invalid input: test")
        #expect(KordantIntentError.networkError("timeout").localizedStringResource == "Network error: timeout")
        #expect(KordantIntentError.operationFailed("error").localizedStringResource == "Operation failed: error")
    }

    @Test("KordantIntentError conforms to Error")
    func conformsToError() {
        let error: any Error = KordantIntentError.notAuthenticated
        #expect(error is KordantIntentError)
    }
}

// MARK: - Alert Model Tests for Intents

struct AlertModelForIntentsTests {
    @Test("Alert isCritical computed property works")
    func isCriticalProperty() {
        let critical = Alert(id: "1", userId: "1", type: .breach, severity: .critical, title: "!", message: "!", read: false, createdAt: nil)
        let nonCritical = Alert(id: "2", userId: "1", type: .exposure, severity: .low, title: "?", message: "?", read: false, createdAt: nil)
        #expect(critical.isCritical == true)
        #expect(nonCritical.isCritical == false)
    }

    @Test("Alert severities are comparable")
    func severityComparable() {
        #expect(AlertSeverity.low.rawValue < AlertSeverity.critical.rawValue)
    }
}