{"repo": "adityars07/voxel", "files": {"backend/providers/DeepSeekProvider.js": {"b8e022e764a8008a95c285bbc2f275d68ab60380": {"t": 1785745544.8881001, "n": 1792, "h": "35351eeec18ab168", "c": "const LLMProvider = require('./LLMProvider');\n\n/**\n * DeepSeekProvider — direct integration with official DeepSeek API.\n *\n * Uses the OpenAI-compatible endpoint: https://api.deepseek.com\n */\nclass DeepSeekProvider extends LLMProvider {\n  constructor() {\n    super('DeepSeek');\n\n    const apiKey = process.env.DEEPSEEK_API_KEY;\n    if (!apiKey) {\n      throw new Error('DEEPSEEK_API_KEY environment variable is not set.');\n    }\n\n    // Lazy-load openai SDK\n    const OpenAI = require('openai');\n    this.client = new OpenAI({\n      baseURL: 'https://api.deepseek.com',\n      apiKey,\n    });\n\n    this.defaultModel = 'deepseek-chat';\n  }\n\n  /** @override */\n  async chat(messages, options = {}) {\n    const {\n      model = this.defaultModel,\n      temperature = 0.7,\n      maxTokens = 8000,\n      responseFormat,\n    } = options;\n\n    const requestBody = {\n      model,\n      messages,\n      temperature,\n      max_tokens: maxTokens,\n    };\n\n    if (responseFormat) {\n      requestBody.response_format = responseFormat;\n    }\n\n    try {\n      const completion = await this.client.chat.completions.create(requestBody);\n\n      const choice = completion.choices?.[0];\n      if (!choice) {\n        throw new Error('DeepSeek returned no choices.');\n      }\n\n      return {\n        content: choice.message?.content || '',\n        reasoningContent: choice.message?.reasoning_content || null,\n        usage: completion.usage || null,\n        model: completion.model || model,\n        finishReason: choice.finish_reason,\n      };\n    } catch (err) {\n      const enriched = new Error(`[DeepSeek/${model}] ${err.message || 'Unknown error'}`);\n      enriched.status = err.status || err.statusCode;\n      enriched.originalError = err;\n      throw enriched;\n    }\n  }\n}\n\nmodule.exports = DeepSeekProvider;\n"}}}}