import Configuration
import Infrastructure
import Persistence
import Testing

@testable import Website
@testable import WebsiteLibrary

@Suite("ConfigReader properties")
struct ConfigReaderPropertiesTests {

    // MARK: Functional tests

    @Test
    func `analytics to be omitted by default`() {
        // The template ships no website identifier, so an unconfigured deployment embeds no tracker at all.
        #expect(.Analytics.websiteID == "")
        #expect(reader().analytics == nil)
    }

    @Test
    func `analytics to be enabled by setting the website id alone`() throws {
        let analytics = try #require(reader(values: [
            .Analytics.websiteID: "0000-website-id"
        ]).analytics)

        #expect(analytics.scriptURL == .Analytics.scriptURL)
        #expect(analytics.websiteID == "0000-website-id")
        #expect(analytics.domains.isEmpty)
        #expect(analytics.excludeHash)
        #expect(analytics.doNotTrack)
        #expect(analytics.performance)
        #expect(!analytics.recorder)
    }

    @Test
    func `analytics to switch recorder mode on when configured`() throws {
        // Session recording is the most invasive thing the tracker does, so it is opted into rather than out of.
        let analytics = try #require(reader(values: [
            .Analytics.websiteID: "0000-website-id",
            .Analytics.recorder: true
        ]).analytics)

        #expect(analytics.recorder)
    }

    @Test
    func `analytics to override the website id and domains when configured`() throws {
        let analytics = try #require(reader(values: [
            .Analytics.websiteID: "custom-website-id",
            .Analytics.domains: "staging.example.com"
        ]).analytics)

        #expect(analytics.websiteID == "custom-website-id")
        #expect(analytics.domains == "staging.example.com")
        #expect(analytics.scriptURL == .Analytics.scriptURL)
    }

    @Test
    func `analytics to be omitted when the website id is cleared`() {
        #expect(reader(values: [.Analytics.websiteID: ""]).analytics == nil)
    }

}

// MARK: - Helpers

private extension ConfigReaderPropertiesTests {

    // MARK: Methods

    /// Builds a configuration reader over the given in-memory values alone.
    func reader(
        values: [AbsoluteConfigKey: ConfigValue] = [:]
    ) -> ConfigReader {
        ConfigReader(providers: [
            InMemoryProvider(values: values)
        ])
    }

}