import {z} from 'zod'

export type AppliedCompanyFilterDto = {type: 'text', operator: 'contains' | 'equals' | 'startsWith' | 'notEquals', path: 'name' | 'domain', value: string} | {type: 'text', operator: 'equals', path: 'company.linkedin.id', value: string};

export type SearchCompaniesRequestDto = {filters?: Array<AppliedCompanyFilterDto> | undefined, page?: number | undefined, pageSize?: number | undefined};

export type CreateApiCompaniesSearchArgs = {body: SearchCompaniesRequestDto};

export type CreateApiCompaniesSearchOptions = {baseUrl: string, xApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const companySearchItemDto = z.object({id: z.string(), name: z.string(), domain: z.string().nullable(), logoUrl: z.string().nullable()});

export const searchCompaniesPaginationDto = z.object({hasNextPage: z.boolean()});

export const searchCompaniesResponseDto = z.object({items: z.array(companySearchItemDto), pagination: searchCompaniesPaginationDto});

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
};

/**
 * Search companies
 * 
 * POST /companies/_search
 */
export const createApiCompaniesSearch = async (args: CreateApiCompaniesSearchArgs, options: CreateApiCompaniesSearchOptions) => {
const {baseUrl, fetch: fetchFn = fetch, xApiKey} = options ?? {}

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

if (xApiKey !== undefined) headers.set("x-api-key", xApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/companies/_search${query.size > 0 ? `?${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(searchCompaniesResponseDto, await res.json())
};