import XCTest
@testable import AIMenubarUsage

final class CursorProviderTests: XCTestCase {
    func testDecodeUsageSummaryFixture() throws {
        let data = try loadFixture(named: "cursor-usage-summary")
        let summary = try JSONDecoder().decode(CursorUsageSummary.self, from: data)

        XCTAssertEqual(summary.membershipType, "pro")
        XCTAssertEqual(summary.individualUsage.plan.totalPercentUsed, 18.0, accuracy: 0.01)
        XCTAssertEqual(summary.individualUsage.plan.used, 360)
        XCTAssertEqual(summary.individualUsage.onDemand.used, 1250)
    }

    func testSnapshotMapping() throws {
        let data = try loadFixture(named: "cursor-usage-summary")
        let summary = try JSONDecoder().decode(CursorUsageSummary.self, from: data)
        let snapshot = CursorAPI.snapshot(from: summary, fetchedAt: Date(), isStale: false)

        XCTAssertEqual(snapshot.providerID, .cursor)
        XCTAssertEqual(snapshot.formatted(.cursorTotalPercentUsed), "18%")
        XCTAssertEqual(snapshot.formatted(.cursorOnDemandUsed), "$12.50")
    }

    private func loadFixture(named name: String) throws -> Data {
        let url = URL(fileURLWithPath: #filePath)
            .deletingLastPathComponent()
            .appendingPathComponent("Fixtures")
            .appendingPathComponent("\(name).json")
        return try Data(contentsOf: url)
    }
}