import XCTest

@testable import OpenFoodFactsSDK

final class OpenFoodFactsTests: XCTestCase {

	var client: OpenFoodFactsClient!

	override func setUp() {
		let config = OpenFoodFactsConfig(
			environment: .staging,
			userAgent: .init(
				appName: "SwiftOpenFoodFactsTests", version: "1.0",
				contactInfo: "(test@test.com)")
		)
		client = OpenFoodFactsClient(config: config)
	}

	func testProductFetch() async throws {
		// Fetch specific fields only
		let response = try await client.product(
			barcode: "3017620422003",  // Nutella
			fields: [.code, .productName, .nutriscoreGrade, .nutriments]
		)

		let product = response.product

		XCTAssertEqual(product?.code, "3017620422003")
		XCTAssertNotNil(product?.productName)
		XCTAssertNotNil(product?.nutriscoreGrade)
		// This field was NOT requested, so it should be nil (if decoding handles strict optionals)
		// or the struct just holds nil.
	}

	func testSearch() async throws {
		let response = try await client.search(
			.query("chocolate"),
			.tag(tag: .brands, value: "milka"),
			.pageSize(5),
			.sort(.popularity),
		)

		let results = response.products ?? []

		let jsonResults = try JSONEncoder().encode(results)
		try jsonResults.write(to: .init(filePath: "./jsonResults.json"))

		XCTAssertFalse(results.isEmpty)
		XCTAssertEqual(results.count, 5)
		// XCTAssertTrue(
		// 	results.first?.brands?.lowercased().contains("milka") ?? false)
	}
}