1 files changed, 128 insertions, 0 deletions
diff --git a/src/main/kotlin/features/misc/LicenseViewer.kt b/src/main/kotlin/features/misc/LicenseViewer.kt
new file mode 100644
index 0000000..4219177
--- /dev/null
+++ b/src/main/kotlin/features/misc/LicenseViewer.kt
@@ -0,0 +1,128 @@
+package moe.nea.firmament.features.misc
+
+import io.github.notenoughupdates.moulconfig.observer.ObservableList
+import io.github.notenoughupdates.moulconfig.xml.Bind
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.Transient
+import kotlinx.serialization.json.decodeFromStream
+import moe.nea.firmament.Firmament
+import moe.nea.firmament.annotations.Subscribe
+import moe.nea.firmament.commands.thenExecute
+import moe.nea.firmament.events.CommandEvent
+import moe.nea.firmament.util.ErrorUtil
+import moe.nea.firmament.util.MC
+import moe.nea.firmament.util.MoulConfigUtils
+import moe.nea.firmament.util.ScreenUtil
+import moe.nea.firmament.util.tr
+
+object LicenseViewer {
+	@Serializable
+	data class Software(
+		val licenses: List<License> = listOf(),
+		val webPresence: String? = null,
+		val projectName: String,
+		val projectDescription: String? = null,
+		val developers: List<Developer> = listOf(),
+	) {
+
+		@Bind
+		fun hasWebPresence() = webPresence != null
+
+		@Bind
+		fun webPresence() = webPresence ?: "<no web presence>"
+		@Bind
+		fun open() {
+			MC.openUrl(webPresence ?: return)
+		}
+
+		@Bind
+		fun projectName() = projectName
+
+		@Bind
+		fun projectDescription() = projectDescription ?: "<no project description>"
+
+		@get:Bind("developers")
+		@Transient
+		val developersO = ObservableList(developers)
+
+		@get:Bind("licenses")
+		@Transient
+		val licenses0 = ObservableList(licenses)
+	}
+
+	@Serializable
+	data class Developer(
+		@get:Bind("name") val name: String,
+		val webPresence: String? = null
+	) {
+
+		@Bind
+		fun open() {
+			MC.openUrl(webPresence ?: return)
+		}
+
+		@Bind
+		fun hasWebPresence() = webPresence != null
+
+		@Bind
+		fun webPresence() = webPresence ?: "<no web presence>"
+	}
+
+	@Serializable
+	data class License(
+		@get:Bind("name") val licenseName: String,
+		val licenseUrl: String? = null
+	) {
+		@Bind
+		fun open() {
+			MC.openUrl(licenseUrl ?: return)
+		}
+
+		@Bind
+		fun hasUrl() = licenseUrl != null
+
+		@Bind
+		fun url() = licenseUrl ?: "<no link to license text>"
+	}
+
+	data class LicenseList(
+		val softwares: List<Software>
+	) {
+		@get:Bind("softwares")
+		val obs = ObservableList(softwares)
+	}
+
+	@OptIn(ExperimentalSerializationApi::class)
+	val licenses: LicenseList? = ErrorUtil.catch("Could not load licenses") {
+		Firmament.json.decodeFromStream<List<Software>?>(
+			javaClass.getResourceAsStream("/LICENSES-FIRMAMENT.json") ?: error("Could not find LICENSES-FIRMAMENT.json")
+		)?.let { LicenseList(it) }
+	}.orNull()
+
+	fun showLicenses() {
+		ErrorUtil.catch("Could not display licenses") {
+			ScreenUtil.setScreenLater(
+				MoulConfigUtils.loadScreen(
+					"license_viewer/index", licenses!!, null
+				)
+			)
+		}.or {
+			MC.sendChat(
+				tr(
+					"firmament.licenses.notfound",
+					"Could not load licenses. Please check the Firmament source code for information directly."
+				)
+			)
+		}
+	}
+
+	@Subscribe
+	fun onSubcommand(event: CommandEvent.SubCommand) {
+		event.subcommand("licenses") {
+			thenExecute {
+				showLicenses()
+			}
+		}
+	}
+}