feat: update cli to handle state and plan flows

Author: iamdavidmt

app/cli/main.cli.ts

@@ -7,7 +7,9 @@ export default class MainCli {
 
   private projectName: string;
 
-  private planFile: string;
+  private inputFile: string;
+
+  private fileType: 'plan' | 'state' = 'plan';
 
   public args: arg.Result<any>;
 
@@ -18,11 +20,27 @@ export default class MainCli {
 
     if (!this.args['--project-name']) throw new Error('Specify project name --project-name');
 
-    if (!this.args['--plan-file']) throw new Error('Specify plan file --plan-file <path>');
+    // Determine input file - prefer new --file, fallback to legacy options
+    const file = this.args['--file'];
+    const planFile = this.args['--plan-file'];
+    const stateFile = this.args['--state-file'];
+
+    // Count how many file options are provided
+    const fileOptions = [file, planFile, stateFile].filter(Boolean);
+
+    if (fileOptions.length === 0) {
+      throw new Error('Specify input file with --file <path> (or legacy --plan-file/--state-file)');
+    }
+
+    if (fileOptions.length > 1) {
+      throw new Error('Specify only one input file option');
+    }
+
+    // Use whichever file option was provided
+    this.inputFile = file || planFile || stateFile!;
 
     this.token = this.args['--token'];
     this.breakdown = this.args['--breakdown'] ?? false;
-    this.planFile = this.args['--plan-file'];
     this.projectName = this.args['--project-name'];
   }
 
@@ -38,7 +56,24 @@ export default class MainCli {
     return this.breakdown;
   }
 
-  getPlanFile(): string {
-    return this.planFile;
+  getInputFile(): string {
+    return this.inputFile;
+  }
+
+  // Legacy methods for backward compatibility
+  getPlanFile(): string | null {
+    return this.args['--plan-file'] || null;
+  }
+
+  getStateFile(): string | null {
+    return this.args['--state-file'] || null;
+  }
+
+  getFileType(): 'plan' | 'state' {
+    return this.fileType;
+  }
+
+  setFileType(fileType: 'plan' | 'state') {
+    this.fileType = fileType;
   }
 }