feat(variable): add SystemInfoVariable and resolver

Add SystemInfoVariable enum with system information variables and resolver to fetch and display system information in the completion data provider.

shirelang/src/main/kotlin/com/phodal/shirelang/compiler/variable/resolver/SystemInfoVariableResolver.kt

@@ -1,59 +1,98 @@
 package com.phodal.shirelang.compiler.variable.resolver
 
 import com.intellij.openapi.application.ApplicationInfo
+import com.phodal.shirecore.provider.variable.model.ToolchainVariable
 import com.phodal.shirelang.compiler.variable.base.VariableResolver
 import com.phodal.shirelang.compiler.variable.base.VariableResolverContext
 import java.util.*
 
+
+enum class SystemInfoVariable(
+    override val variableName: String,
+    override val description: String,
+) : ToolchainVariable {
+    OS_NAME("os.name", "The name of the operating system") {
+        override var value: Any?
+            get() = System.getProperty("os.name")
+            set(_) {}
+    },
+    OS_VERSION("os.version", "The version of the operating system") {
+        override var value: Any?
+            get() = System.getProperty("os.version")
+            set(_) {}
+    },
+    OS_ARCH("os.arch", "The architecture of the operating system") {
+        override var value: Any?
+            get() = System.getProperty("os.arch")
+            set(_) {}
+    },
+
+    IDE_NAME("ide.name", "The name of the IDE") {
+        override var value: Any?
+            get() = System.getProperty("idea.platform.prefix", "idea")
+            set(_) {}
+    },
+    IDE_VERSION("ide.version", "The version of the IDE") {
+        override var value: Any?
+            get() = ApplicationInfo.getInstance().build.asString()
+            set(_) {}
+    },
+    IDE_CODE("ide.code", "The code of the IDE") {
+        override var value: Any?
+            get() = ApplicationInfo.getInstance().build.productCode
+            set(_) {}
+    },
+
+    TIMEZONE("timezone", "The timezone") {
+        override var value: Any?
+            get() = TimeZone.getDefault().displayName
+            set(_) {}
+    },
+    DATE("date", "The current date") {
+        override var value: Any?
+            get() = Calendar.getInstance().time
+            set(_) {}
+    },
+    TODAY("today", "Today's date") {
+        override var value: Any?
+            get() = Calendar.getInstance().time
+            set(_) {}
+    },
+    NOW("now", "The current time in milliseconds") {
+        override var value: Any?
+            get() = System.currentTimeMillis()
+            set(_) {}
+    },
+
+    LOCALE("locale", "The default locale") {
+        override var value: Any?
+            get() = Locale.getDefault().toString()
+            set(_) {}
+    };
+
+    companion object {
+        fun from(variableName: String): SystemInfoVariable? {
+            return values().firstOrNull { it.variableName == variableName }
+        }
+
+        fun all(): List<SystemInfoVariable> {
+            return values().toList()
+        }
+    }
+}
+
 /**
- * SystemInfoVariable is a class that provides a way to resolve system information variables.
- * like:
- * - OS, OS Version..
- * - IDE information, version, etc.
- * - Timezone, locale, etc.
+ * SystemInfoVariableResolver is a class that provides a way to resolve system information variables.
  */
 class SystemInfoVariableResolver(
-    private val context: VariableResolverContext
+    private val context: VariableResolverContext,
 ) : VariableResolver {
     override fun resolve(): Map<String, Any> {
-        return mapOf(
-            "os" to fetchOsData(),
-            "ide" to fetchIDEData(),
-            "time" to fetchTimezoneData(),
-            "locale" to fetchLocaleData()
-        )
-    }
-
-    private fun fetchOsData(): Map<String, Any> {
-        return mapOf(
-            "name" to System.getProperty("os.name"),
-            "version" to System.getProperty("os.version"),
-            "arch" to System.getProperty("os.arch")
-        )
-    }
-
-    /**
-     * Get data from [com.intellij.util.PlatformUtils]
-     */
-    private fun fetchIDEData(): Map<String, Any> {
-        val buildNumber = ApplicationInfo.getInstance().build
-        return mapOf(
-            "name" to System.getProperty("idea.platform.prefix", "idea"),
-            "version" to buildNumber.asString(),
-            "code" to buildNumber.productCode
-        )
-    }
-
-    private fun fetchTimezoneData(): Map<String, Any> {
-        return mapOf(
-            "timezone" to TimeZone.getDefault().displayName,
-            "date" to Calendar.getInstance().time,
-            "today" to Calendar.getInstance().time,
-            "now" to System.currentTimeMillis()
-        )
-    }
+        val result = mutableMapOf<String, Any>()
+        SystemInfoVariable.all().forEach {
+            result[it.variableName] = it.value!!
+        }
 
-    private fun fetchLocaleData(): Map<String, Any> {
-        return mapOf("locale" to Locale.getDefault().toString())
+        return result
     }
-}
+}

shirelang/src/main/kotlin/com/phodal/shirelang/completion/dataprovider/CompositeVariableProvider.kt

@@ -3,6 +3,7 @@ package com.phodal.shirelang.completion.dataprovider
 import com.phodal.shirecore.provider.variable.model.PsiContextVariable
 import com.phodal.shirecore.provider.variable.model.ToolchainVariable
 import com.phodal.shirecore.provider.variable.model.VcsToolchainVariable
+import com.phodal.shirelang.compiler.variable.resolver.SystemInfoVariable
 
 data class VariableDisplay(
     val name: String,
@@ -30,6 +31,10 @@ object CompositeVariableProvider {
             results.add(VariableDisplay(it.variableName, it.description, 70.0))
         }
 
+        SystemInfoVariable.all().forEach {
+            results.add(VariableDisplay(it.variableName, it.description, 60.0))
+        }
+
         return results
     }
 }