perestroika

src/commonMain/kotlin/Logger.kt

@@ -0,0 +1,40 @@
+package dev.inmo.kslog.common
+
+
+enum class LogLevel {
+    VERBOSE,
+    INFO,
+    WARNING,
+    ERROR,
+    ASSERT,
+    DEBUG
+}
+
+interface Logger {
+    fun log (level: LogLevel, message: String, tag: String? = null, throwable: Throwable? = null)
+    companion object : Logger {
+        var DEFAULT: Logger = Logger("app")
+        override fun log(level: LogLevel, message: String, tag: String?, throwable: Throwable?) = DEFAULT.log(level, message, tag, throwable)
+
+        operator fun invoke (log: (level: LogLevel, message: String, tag: String?, throwable: Throwable?) -> Unit) = CallbackLogger(log)
+    }
+}
+
+class CallbackLogger(
+    private val logger: (level: LogLevel, message: String, tag: String?, throwable: Throwable?) -> Unit
+) : Logger {
+    override fun log(level: LogLevel, message: String, tag: String?, throwable: Throwable?) = logger(level, message, tag, throwable)
+}
+
+
+expect fun Logger(
+    defaultTag: String,
+    filter: (l: LogLevel, m: String, t: String, Throwable?) -> Boolean
+) : Logger
+
+fun Logger(
+    defaultTag: String,
+    levels: Set<LogLevel> = LogLevel.values().toSet()
+): Logger = Logger (defaultTag) { l, _, _, _ ->
+    l in levels
+}