'use strict';

const { getModelByKey } = require('../config');

function buildProfile(model) {
  const supportsThinking = model.modes === 'thinking' || model.modes === 'fast+thinking';
  return {
    key: model.key,
    name: model.name,
    base_url: model.base_url,
    api_key: model.api_key,
    model_id: model.model_id || model.name,
    modes: model.modes,
    multimodal: model.multimodal,
    max_output: Number.isFinite(model.max_output) ? model.max_output : null,
    max_context: Number.isFinite(model.max_context) ? model.max_context : null,
    supports_thinking: supportsThinking,
    thinking_params: supportsThinking
      ? {
          fast: { thinking: { type: 'disabled' } },
          thinking: { thinking: { type: 'enabled' } },
        }
      : { fast: {}, thinking: {} },
  };
}

function getModelProfile(config, modelKey) {
  const model = getModelByKey(config, modelKey);
  if (!model || !model.valid) {
    throw new Error(`模型配置无效或不存在: ${modelKey || ''}`);
  }
  return buildProfile(model);
}

module.exports = { getModelProfile };