import { IEditStrategy, EditOperation, EditContext, EditResult, BatchOperation } from './IEditStrategy.js';
export class BatchEditStrategy implements IEditStrategy {
constructor(
private appendStrategy: IEditStrategy,
private replaceStrategy: IEditStrategy,
private headingStrategy: IEditStrategy
) {}
async canHandle(operation: EditOperation): Promise<boolean> {
return operation.type === 'batch';
}
async execute(operation: EditOperation, context: EditContext): Promise<EditResult> {
if (operation.type !== 'batch') {
throw new Error('BatchEditStrategy can only handle batch operations');
}
const batchOp = operation as BatchOperation;
const results: Array<{ operation: number; result: EditResult }> = [];
const errors: Array<{ operation: number; error: string; attempted: EditOperation }> = [];
// Process each operation in sequence
for (let i = 0; i < batchOp.operations.length; i++) {
const op = batchOp.operations[i];
try {
// Find the appropriate strategy for this operation
let strategy: IEditStrategy | null = null;
if (await this.appendStrategy.canHandle(op)) {
strategy = this.appendStrategy;
} else if (await this.replaceStrategy.canHandle(op)) {
strategy = this.replaceStrategy;
} else if (await this.headingStrategy.canHandle(op)) {
strategy = this.headingStrategy;
}
if (!strategy) {
errors.push({
operation: i,
error: `No strategy available for operation type: ${op.type}`,
attempted: op
});
continue;
}
// Execute the operation
const result = await strategy.execute(op, context);
if (result.success) {
results.push({ operation: i, result });
} else {
errors.push({
operation: i,
error: result.error || 'Operation failed',
attempted: op
});
}
} catch (error) {
errors.push({
operation: i,
error: error instanceof Error ? error.message : String(error),
attempted: op
});
}
}
const successCount = results.length;
const failureCount = errors.length;
const totalOperations = batchOp.operations.length;
return {
success: true, // Batch always completes, even if some operations fail
message: `Batch operation completed: ${successCount}/${totalOperations} successful`,
batch_results: {
total_operations: totalOperations,
successful: successCount,
failed: failureCount,
results: results,
errors: errors.length > 0 ? errors : undefined
}
};
}
}
