refactor application.yaml to become an os definition #40

src/domain/ScriptingDefinition.ts

@@ -0,0 +1,32 @@
+import { ScriptingLanguage } from './ScriptingLanguage';
+import { IScriptingDefinition } from './IScriptingDefinition';
+
+export class ScriptingDefinition implements IScriptingDefinition {
+    public readonly fileExtension: string;
+    constructor(
+            public readonly language: ScriptingLanguage,
+            public readonly startCode: string,
+            public readonly endCode: string,
+        ) {
+        this.fileExtension = findExtension(language);
+        validateCode(startCode, 'start code');
+        validateCode(endCode, 'end code');
+    }
+}
+
+function findExtension(language: ScriptingLanguage): string {
+    switch (language) {
+        case ScriptingLanguage.bash:
+            return 'sh';
+        case ScriptingLanguage.batchfile:
+            return 'bat';
+        default:
+            throw new Error(`unsupported language: ${language}`);
+    }
+}
+
+function validateCode(code: string, name: string) {
+    if (!code) {
+        throw new Error(`undefined ${name}`);
+    }
+}