sim/providers/utils.ts

import { useCustomToolsStore } from '@/stores/custom-tools/store'
import { anthropicProvider } from './anthropic'
import { cerebrasProvider } from './cerebras'
import { deepseekProvider } from './deepseek'
import { googleProvider } from './google'
import { openaiProvider } from './openai'
import { ProviderConfig, ProviderId, ProviderToolConfig } from './types'
import { xAIProvider } from './xai'

/**
 * Provider configurations with associated model names/patterns
 */
export const providers: Record<
  ProviderId,
  ProviderConfig & {
    models: string[]
    modelPatterns?: RegExp[]
  }
> = {
  openai: {
    ...openaiProvider,
    models: ['gpt-4o', 'o1', 'o3-mini'],
    modelPatterns: [/^gpt/, /^o1/],
  },
  anthropic: {
    ...anthropicProvider,
    models: ['claude-3-7-sonnet-20250219'],
    modelPatterns: [/^claude/],
  },
  google: {
    ...googleProvider,
    models: ['gemini-2.0-flash'],
    modelPatterns: [/^gemini/],
  },
  deepseek: {
    ...deepseekProvider,
    models: ['deepseek-v3', 'deepseek-r1'],
    modelPatterns: [/^deepseek/],
  },
  xai: {
    ...xAIProvider,
    models: ['grok-2-latest'],
    modelPatterns: [/^grok/],
  },
  cerebras: {
    ...cerebrasProvider,
    models: ['cerebras/llama-3.3-70b'],
    modelPatterns: [/^cerebras\/llama/],
  },
}

/**
 * Direct mapping from model names to provider IDs
 * Automatically generated from the providers configuration
 */
export const MODEL_PROVIDERS: Record<string, ProviderId> = Object.entries(providers).reduce(
  (map, [providerId, config]) => {
    config.models.forEach((model) => {
      map[model.toLowerCase()] = providerId as ProviderId
    })
    return map
  },
  {} as Record<string, ProviderId>
)

export function getProviderFromModel(model: string): ProviderId {
  const normalizedModel = model.toLowerCase()
  if (normalizedModel in MODEL_PROVIDERS) {
    return MODEL_PROVIDERS[normalizedModel]
  }

  for (const [providerId, config] of Object.entries(providers)) {
    if (config.modelPatterns) {
      for (const pattern of config.modelPatterns) {
        if (pattern.test(normalizedModel)) {
          return providerId as ProviderId
        }
      }
    }
  }

  return 'deepseek'
}

export function getProvider(id: string): ProviderConfig | undefined {
  // Handle both formats: 'openai' and 'openai/chat'
  const providerId = id.split('/')[0] as ProviderId
  return providers[providerId]
}

export function getProviderConfigFromModel(model: string): ProviderConfig | undefined {
  const providerId = getProviderFromModel(model)
  return providers[providerId]
}

export function getAllModels(): string[] {
  return Object.values(providers).flatMap((provider) => provider.models || [])
}

export function getAllProviderIds(): ProviderId[] {
  return Object.keys(providers) as ProviderId[]
}

export function getProviderModels(providerId: ProviderId): string[] {
  const provider = providers[providerId]
  return provider?.models || []
}

export function generateStructuredOutputInstructions(responseFormat: any): string {
  if (!responseFormat?.fields) return ''

  function generateFieldStructure(field: any): string {
    if (field.type === 'object' && field.properties) {
      return `{
    ${Object.entries(field.properties)
      .map(([key, prop]: [string, any]) => `"${key}": ${prop.type === 'number' ? '0' : '"value"'}`)
      .join(',\n    ')}
  }`
    }
    return field.type === 'string'
      ? '"value"'
      : field.type === 'number'
        ? '0'
        : field.type === 'boolean'
          ? 'true/false'
          : '[]'
  }

  const exampleFormat = responseFormat.fields
    .map((field: any) => `  "${field.name}": ${generateFieldStructure(field)}`)
    .join(',\n')

  const fieldDescriptions = responseFormat.fields
    .map((field: any) => {
      let desc = `${field.name} (${field.type})`
      if (field.description) desc += `: ${field.description}`
      if (field.type === 'object' && field.properties) {
        desc += '\nProperties:'
        Object.entries(field.properties).forEach(([key, prop]: [string, any]) => {
          desc += `\n  - ${key} (${(prop as any).type}): ${(prop as any).description || ''}`
        })
      }
      return desc
    })
    .join('\n')

  return `
Please provide your response in the following JSON format:
{
${exampleFormat}
}

Field descriptions:
${fieldDescriptions}

Your response MUST be valid JSON and include all the specified fields with their correct types.
Each metric should be an object containing 'score' (number) and 'reasoning' (string).`
}

export function extractAndParseJSON(content: string): any {
  // First clean up the string
  const trimmed = content.trim()

  // Find the first '{' and last '}'
  const firstBrace = trimmed.indexOf('{')
  const lastBrace = trimmed.lastIndexOf('}')

  if (firstBrace === -1 || lastBrace === -1) {
    throw new Error('No JSON object found in content')
  }

  // Extract just the JSON part
  const jsonStr = trimmed.slice(firstBrace, lastBrace + 1)

  try {
    return JSON.parse(jsonStr)
  } catch (error) {
    // If parsing fails, try to clean up common issues
    const cleaned = jsonStr
      .replace(/\n/g, ' ') // Remove newlines
      .replace(/\s+/g, ' ') // Normalize whitespace
      .replace(/,\s*([}\]])/g, '$1') // Remove trailing commas

    try {
      return JSON.parse(cleaned)
    } catch (innerError) {
      console.error('Original content:', content)
      console.error('Extracted JSON:', jsonStr)
      console.error('Cleaned JSON:', cleaned)
      throw new Error(
        `Failed to parse JSON after cleanup: ${innerError instanceof Error ? innerError.message : 'Unknown error'}`
      )
    }
  }
}

/**
 * Transforms a custom tool schema into a provider tool config
 */
export function transformCustomTool(customTool: any): ProviderToolConfig {
  const schema = customTool.schema

  if (!schema || !schema.function) {
    throw new Error('Invalid custom tool schema')
  }

  return {
    id: `custom_${customTool.id}`, // Prefix with 'custom_' to identify custom tools
    name: schema.function.name,
    description: schema.function.description || '',
    params: {}, // This will be derived from parameters
    parameters: {
      type: schema.function.parameters.type,
      properties: schema.function.parameters.properties,
      required: schema.function.parameters.required || [],
    },
  }
}

/**
 * Gets all available custom tools as provider tool configs
 */
export function getCustomTools(): ProviderToolConfig[] {
  // Get custom tools from the store
  const customTools = useCustomToolsStore.getState().getAllTools()

  // Transform each custom tool into a provider tool config
  return customTools.map(transformCustomTool)
}