import Foundation
import Testing
@testable import Shotdeck
@testable import ShotdeckCore

@Test("DubaiTime.checkTime formats as HH:MM Dubai")
func dubaiTimeCheckTimeFormat() {
    let now = Date()
    let result = DubaiTime.checkTime(now)

    // Dubai timezone format: HH:MM Dubai
    let pattern = "^[0-9]{2}:[0-9]{2} Dubai$"
    let regex = try? NSRegularExpression(pattern: pattern, options: [])
    let range = NSRange(result.startIndex..<result.endIndex, in: result)
    let matches = regex?.matches(in: result, options: [], range: range) ?? []
    #expect(!matches.isEmpty, "checkTime should format as HH:MM Dubai, got: \(result)")
}

@Test("Status message: up-to-date manual check includes Dubai timestamp")
@MainActor
func manualCheckUpToDateIncludesTimestamp() async {
    let checker = UpdateChecker()

    // Inject a stub appcast showing the current version (no update available)
    let currentVersion = UpdateChecker.currentVersion()
    let stubAppcast = """
    {
      "version": "\(currentVersion)",
      "zipURL": "https://example.com/dummy.zip",
      "sha256": "0000000000000000000000000000000000000000000000000000000000000000"
    }
    """
    checker.testAppcastJSON = stubAppcast

    // Capture the status message
    var capturedStatus: String?
    checker.onChecked = {
        capturedStatus = checker.statusMessage
    }

    // Run the manual check
    await checker.checkNow(manual: true)

    // Verify the message matches the expected format and includes a timestamp
    guard let status = capturedStatus else {
        #expect(false, "statusMessage should not be nil for manual check finding no update")
        return
    }

    // Message should be "Redline X.Y.Z is up to date, checked HH:MM Dubai"
    let pattern = "^Redline [0-9]+\\.[0-9]+\\.[0-9]+ is up to date, checked [0-9]{2}:[0-9]{2} Dubai$"
    let regex = try? NSRegularExpression(pattern: pattern, options: [])
    let range = NSRange(status.startIndex..<status.endIndex, in: status)
    let matches = regex?.matches(in: status, options: [], range: range) ?? []
    #expect(!matches.isEmpty, "Manual check up-to-date message should match format, got: \(status)")
}

@Test("Status message: automatic check doesn't set message when up-to-date")
@MainActor
func automaticCheckUpToDateLeavesMessageNil() async {
    let checker = UpdateChecker()

    // Inject a stub appcast showing the current version (no update available)
    let currentVersion = UpdateChecker.currentVersion()
    let stubAppcast = """
    {
      "version": "\(currentVersion)",
      "zipURL": "https://example.com/dummy.zip",
      "sha256": "0000000000000000000000000000000000000000000000000000000000000000"
    }
    """
    checker.testAppcastJSON = stubAppcast

    // Capture the status message
    var capturedStatus: String?
    checker.onChecked = {
        capturedStatus = checker.statusMessage
    }

    // Run an AUTOMATIC check (manual: false)
    await checker.checkNow(manual: false)

    // For automatic checks finding no update, statusMessage should be nil
    #expect(capturedStatus == nil,
            "Automatic check finding no update should leave statusMessage nil, got: \(capturedStatus ?? "(nil)")")
}

@Test("Update status and general status are independent channels")
@MainActor
func statusChannelsAreIndependent() async throws {
    let fm = FileManager.default
    let appSupportRoot = fm.temporaryDirectory
        .appendingPathComponent("update-checker-channel-test-\(UUID().uuidString)", isDirectory: true)
    defer { try? fm.removeItem(at: appSupportRoot) }

    // Create a real AppModel using the standard launch pattern
    let model = AppDelegate.makeLaunchModel(appSupportRoot: appSupportRoot)
    defer { model.hotkeys.unregisterAll() }

    // Test 1: Setting statusLine should NOT affect updateStatusMessage
    model.setStatus("General status: captured 3")
    #expect(model.statusLine == "General status: captured 3", "statusLine should be set")
    #expect(model.updateStatusMessage == nil, "updateStatusMessage should remain nil")

    // Test 2: Setting updateStatus should NOT affect statusLine
    model.setUpdateStatus("Update to 9.9.9 is ready")
    #expect(model.statusLine == "General status: captured 3", "statusLine should remain unchanged")
    #expect(model.updateStatusMessage == "Update to 9.9.9 is ready", "updateStatusMessage should be set")

    // Test 3: Clearing statusLine leaves updateStatus intact
    model.setStatus(nil)
    #expect(model.statusLine == nil, "statusLine should be cleared")
    #expect(model.updateStatusMessage == "Update to 9.9.9 is ready", "updateStatusMessage should persist")

    // Test 4: Clearing updateStatus leaves other state unaffected
    model.setUpdateStatus(nil)
    #expect(model.updateStatusMessage == nil, "updateStatusMessage should be cleared")
}