import 'dotenv/config';
import Anthropic from '@anthropic-ai/sdk';

export interface BaseTool {
  readonly name: string;
  readonly input_schema: {
    readonly type: 'object';
    readonly properties: Record<string, unknown>;
    readonly required?: readonly string[];
    readonly description?: string;
  };
}

export type ToolUseBlock = {
  type: 'tool_use';
  id: string;
  name: string;
  input: Record<string, any>;
};

export async function makeRequest<T extends BaseTool>(prompt: string, tool: T) {
  if (!process.env.ANTHROPIC_API_KEY) {
    throw Error('No Anthropic API key found.');
  }

  const client = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY });

  try {
    const response = await client.messages.create({
      model: 'claude-sonnet-4-0',
      max_tokens: 8192,
      temperature: 1,
      tools: [tool],
      messages: [{ role: 'user', content: prompt }]
    });

    if (response.stop_reason && response.stop_reason !== 'tool_use') {
      throw Error(JSON.stringify(response));
    }

    if (response.content.length != 2) {
      throw Error(JSON.stringify(response));
    }

    const content = response.content;

    const toolUse = content.find((block): block is ToolUseBlock => block.type === 'tool_use');

    if (!toolUse) {
      throw new Error('No tool_use block found in response');
    }

    return toolUse.input;
  } catch (error) {
    console.error('Error making request:', error);
    throw Error('Anthropic client error.');
  }
}