import {z} from 'zod'

export type GenAIResearchOutputSchemaProperty = {title?: string | undefined, description?: string | undefined, type: 'string' | 'number' | 'integer' | 'boolean' | 'object' | 'array' | 'null' | Array<'string' | 'number' | 'integer' | 'boolean' | 'object' | 'array' | 'null'>, enum?: Array<unknown> | undefined};

export type GenAIResearchOutputSchemaDefinition = {type?: 'object' | undefined, properties: {[key: string]: GenAIResearchOutputSchemaProperty}, required?: Array<string> | undefined};

export type GenAIResearchParams = {output_schema?: GenAIResearchOutputSchemaDefinition | undefined, query?: string | undefined, prompt_template?: string | undefined};

export type V2ProspectResearchInput = {prospect_id: string, custom_fields?: Record<string, never> | undefined};

export type V2ProspectResearchRequest = {request_context?: (Record<string, never> | null) | undefined, parameters: GenAIResearchParams, prospects: Array<V2ProspectResearchInput> | V2ProspectResearchInput};

export type CreateApiV2ProspectsResearchEnrichArgs = {body: V2ProspectResearchRequest};

export type CreateApiV2ProspectsResearchEnrichOptions = {baseUrl?: string | undefined, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const requestStatus = z.enum(["success", "miss", "failure"]);

export const v2ResponseContext = z.object({correlation_id: z.string(), request_status: requestStatus, time_taken_in_seconds: z.number()});

export const genAIResearchOutputSchema = z.object({research_result: z.unknown()});

export const v2ProspectEnrichRowGenAIResearchOutputSchema = z.object({prospect_id: z.string(), data: z.union([genAIResearchOutputSchema, z.array(genAIResearchOutputSchema)]).optional()});

export const v2ProspectResearchResponseGenAIResearchOutputSchema = z.object({response_context: v2ResponseContext, data: z.array(v2ProspectEnrichRowGenAIResearchOutputSchema), total_results: z.number().int(), generated_prompt: z.string().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Research Prospects
 * 
 * POST /v2/prospects/research/enrich
 * 
 * Also accepts auth: APIKeyHeader
 */
export const createApiV2ProspectsResearchEnrich = async (args: CreateApiV2ProspectsResearchEnrichArgs, options?: CreateApiV2ProspectsResearchEnrichOptions) => {
const {baseUrl = "https://api.explorium.ai", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (APIKeyHeader !== undefined) headers.set("api_key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/prospects/research/enrich${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(v2ProspectResearchResponseGenAIResearchOutputSchema, await res.json())
};