import XCTest
@testable import IDPGlobal

final class PairingPayloadParserTests: XCTestCase {
    func testParsesStructuredPairingPayload() throws {
        let payload = "idp.global://pair?token=swiftapp-demo-berlin&origin=code.foss.global&device=Safari%20on%20Berlin%20MBP"

        let context = try PairingPayloadParser.parse(payload)

        XCTAssertEqual(context.deviceName, "Safari on Berlin MBP")
        XCTAssertEqual(context.originHost, "code.foss.global")
        XCTAssertEqual(context.tokenPreview, "berlin")
    }

    func testParsesManualFallbackPayload() throws {
        let context = try PairingPayloadParser.parse("manual pair token 1234567890")

        XCTAssertEqual(context.deviceName, "Manual Session")
        XCTAssertEqual(context.originHost, "code.foss.global")
        XCTAssertEqual(context.tokenPreview, "567890")
    }

    func testRejectsInvalidPayload() {
        XCTAssertThrowsError(try PairingPayloadParser.parse("https://example.com")) { error in
            XCTAssertEqual(error as? AppError, .invalidPairingPayload)
        }
    }
}