MCP 3D Printer Server

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src
printers
import { PrinterImplementation } from "../types.js";
import fs from "fs";
import FormData from "form-data";

export class OctoPrintImplementation extends PrinterImplementation {
  async getStatus(host: string, port: string, apiKey: string) {
    const url = `http://${host}:${port}/api/printer`;
    const response = await this.apiClient.get(url, {
      headers: {
        "X-Api-Key": apiKey
      }
    });
    return response.data;
  }

  async getFiles(host: string, port: string, apiKey: string) {
    const url = `http://${host}:${port}/api/files`;
    const response = await this.apiClient.get(url, {
      headers: {
        "X-Api-Key": apiKey
      }
    });
    return response.data;
  }

  async getFile(host: string, port: string, apiKey: string, filename: string) {
    const url = `http://${host}:${port}/api/files/local/${filename}`;
    const response = await this.apiClient.get(url, {
      headers: {
        "X-Api-Key": apiKey
      }
    });
    return response.data;
  }

  async uploadFile(host: string, port: string, apiKey: string, filePath: string, filename: string, print: boolean) {
    const url = `http://${host}:${port}/api/files/local`;
    
    const formData = new FormData();
    formData.append("file", fs.createReadStream(filePath));
    formData.append("filename", filename);
    
    if (print) {
      formData.append("print", "true");
    }
    
    const response = await this.apiClient.post(url, formData as any, {
      headers: {
        "X-Api-Key": apiKey,
        ...formData.getHeaders()
      }
    });
    
    return response.data;
  }

  async startJob(host: string, port: string, apiKey: string, filename: string) {
    const url = `http://${host}:${port}/api/files/local/${filename}`;
    
    const response = await this.apiClient.post(url, {
      command: "select",
      print: true
    } as any, {
      headers: {
        "X-Api-Key": apiKey,
        "Content-Type": "application/json"
      }
    });
    
    return response.data;
  }

  async cancelJob(host: string, port: string, apiKey: string) {
    const url = `http://${host}:${port}/api/job`;
    
    const response = await this.apiClient.post(url, {
      command: "cancel"
    } as any, {
      headers: {
        "X-Api-Key": apiKey,
        "Content-Type": "application/json"
      }
    });
    
    return response.data;
  }

  async setTemperature(host: string, port: string, apiKey: string, component: string, temperature: number) {
    let url = `http://${host}:${port}/api/printer/tool`;
    
    const data: Record<string, any> = {};
    if (component === "bed") {
      data.command = "target";
      data.target = temperature;
      url = `http://${host}:${port}/api/printer/bed`;
    } else if (component.startsWith("extruder")) {
      data.command = "target";
      data.targets = {};
      data.targets[component] = temperature;
    } else {
      throw new Error(`Unsupported component: ${component}`);
    }
    
    const response = await this.apiClient.post(url, data as any, {
      headers: {
        "X-Api-Key": apiKey,
        "Content-Type": "application/json"
      }
    });
    
    return response.data;
  }
} 