import { BaseEditStrategy } from './BaseEditStrategy.js';
import { EditOperation, EditContext, EditResult, AppendOperation } from './IEditStrategy.js';
/**
* Strategy for handling append operations
* Adds content to the end of a file
*/
export class AppendStrategy extends BaseEditStrategy {
/**
* Checks if the operation is an append operation
*/
async canHandle(operation: EditOperation): Promise<boolean> {
return operation.type === 'append';
}
/**
* Executes the append operation
*/
async execute(operation: EditOperation, context: EditContext): Promise<EditResult> {
if (operation.type !== 'append') {
throw new Error('Cannot execute non-append operation');
}
const appendOp = operation as AppendOperation;
try {
await this.appendToFile(context.filepath, appendOp.content, context.client);
return this.formatResult({
success: true,
message: `Successfully appended content to ${context.filepath}`,
operation: 'append',
filepath: context.filepath
});
} catch (error: unknown) {
const errorMessage = error instanceof Error ? error.message : String(error);
return this.formatErrorWithAlternative(
`Append failed: ${errorMessage}`,
'Try using obsidian_simple_append instead',
{
filepath: context.filepath,
content: appendOp.content,
create_file_if_missing: true
}
);
}
}
}
