import {z} from 'zod'

export type CreateApiApiAgentDeepSignalArgs = {body: {name: string}};

export type CreateApiApiAgentDeepSignalOptions = {baseUrl?: string | undefined, creditPackKey?: string | undefined, fetch?: typeof fetch | undefined};

export const deepSignal = z.object({found: z.boolean(), name: z.string().optional(), sector: z.string().optional(), stage: z.string().optional(), geography: z.string().optional(), signalType: z.string().optional(), scores: z.object({velocity: z.number().int().gte(0).lte(100).optional(), growth: z.number().int().gte(0).lte(100).optional(), novelty: z.number().int().gte(0).lte(100).optional(), composite: z.number().int().gte(0).lte(100).optional()}).optional(), rank: z.object({inSector: z.number().int().optional(), sectorTotal: z.number().int().optional(), sectorPercentile: z.number().int().gte(0).lte(100).optional()}).optional(), thesis: z.string().optional(), comparables: z.array(z.object({name: z.string().optional(), commitVelocityChange: z.string().optional(), signalType: z.string().optional()})).optional(), balance: z.number().int().gte(0).optional(), charged: z.number().int().gte(0).lte(1).optional(), citation: 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
};

/**
 * Get deep enriched signal (paid, per-request)
 * 
 * POST /api/agent/deep-signal
 */
export const createApiApiAgentDeepSignal = async (args: CreateApiApiAgentDeepSignalArgs, options?: CreateApiApiAgentDeepSignalOptions) => {
const {baseUrl = "https://signals.gitdealflow.com", fetch: fetchFn = fetch, creditPackKey} = options ?? {}

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

if (creditPackKey !== undefined) headers.set('authorization', `Bearer ${creditPackKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/agent/deep-signal${query.size > 0 ? `?${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(deepSignal, await res.json())
};