import {z} from 'zod'

export type SignalType = 'LINKEDIN_OWN_POST_ENGAGEMENT' | 'LINKEDIN_COMPETITOR_POST_ENGAGEMENT' | 'LINKEDIN_PERSON_POST_ENGAGEMENT' | 'LINKEDIN_KEYWORD_MENTION' | 'LINKEDIN_OWN_COMPANY_FOLLOWERS' | 'LINKEDIN_COMPETITOR_FOLLOWERS' | 'LINKEDIN_COMPANY_PAGE_FOLLOWERS' | 'HIRING_SIGNALS' | 'JOB_DESCRIPTION_KEYWORD' | 'FUNDING_EVENTS' | 'TECH_ADOPTION' | 'NEWS_EVENTS' | 'NEW_JOB' | 'CUSTOM_EVENT' | 'LINKEDIN_PARTNER_FOLLOWERS' | 'LINKEDIN_CUSTOMER_FOLLOWERS' | 'LINKEDIN_PARTNER_POST_ENGAGEMENT' | 'LINKEDIN_CUSTOMER_POST_ENGAGEMENT' | 'LINKEDIN_COMPANY_PAGE_POST_ENGAGEMENT' | 'LINKEDIN_OWN_PROFILE_POST_ENGAGEMENT' | 'LINKEDIN_OWN_EMPLOYEES_POST_ENGAGEMENT' | 'LINKEDIN_COMPETITOR_EMPLOYEES_POST_ENGAGEMENT' | 'LINKEDIN_PARTNER_EMPLOYEES_POST_ENGAGEMENT' | 'LINKEDIN_CUSTOMER_EMPLOYEES_POST_ENGAGEMENT' | 'LINKEDIN_OWN_BRAND_MENTION' | 'LINKEDIN_COMPETITOR_MENTION' | 'LINKEDIN_PARTNER_MENTION' | 'LINKEDIN_CUSTOMER_MENTION' | 'LINKEDIN_EVENT_MENTION' | 'COMPETITOR_TECH_ADOPTION' | 'INTEGRATION_TECH_ADOPTION' | 'LINKEDIN_EVENT_PAGE_FOLLOWERS' | 'CHAMPION_CHANGED_JOB' | 'CRM_LIST_ENTRY';

export type FilterTexts = {[key: string]: Array<string>};

export type PreviewSignalPublicInput = {signal_type: SignalType, search_filters?: FilterTexts | undefined};

export type CreateApiV1SignalsPreviewArgs = {body: PreviewSignalPublicInput};

export type CreateApiV1SignalsPreviewOptions = {baseUrl?: string | undefined, BearerApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const signalEventType = z.enum(["CLIENT_POST_REACTION", "CLIENT_POST_COMMENT", "COMPETITOR_POST_REACTION", "COMPETITOR_POST_COMMENT", "PERSON_POST_REACTION", "CLIENT_PAGE_FOLLOW", "COMPETITOR_PAGE_FOLLOW", "COMPANY_PAGE_FOLLOW", "PUBLIC_BRAND_MENTION_LINKEDIN", "PAIN_POINT_PUBLIC_POST", "LEADERSHIP_HIRING", "HIRING_SURGE", "NEW_ROLE", "TECH_ADOPTED", "TECH_DROPPED", "FUNDING_EVENT", "M_AND_A_EVENT", "LEADERSHIP_CHANGE_NEWS", "BRAND_MENTION_NEWS", "CUSTOM_EVENT"]);

export const signalPreviewEntryPublicOutput = z.object({event_type: signalEventType, company_name: z.string().nullable().optional(), company_domain: z.string().nullable().optional(), first_name: z.string().nullable().optional(), last_name: z.string().nullable().optional(), job_title: z.string().nullable().optional(), linkedin_url: z.string().nullable().optional(), email: z.string().nullable().optional()});

export const signalPreviewPublicOutput = z.object({window_days: z.number().int(), total_count: z.number().int().nullable(), items: z.array(signalPreviewEntryPublicOutput), unavailable_reason: z.string().nullable().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
};

/**
 * Preview Signal
 * 
 * POST /v1/signals/preview
 */
export const createApiV1SignalsPreview = async (args: CreateApiV1SignalsPreviewArgs, options?: CreateApiV1SignalsPreviewOptions) => {
const {baseUrl = "https://api.topo.io", fetch: fetchFn = fetch, BearerApiKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/signals/preview${query.size > 0 ? `?${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(signalPreviewPublicOutput, await res.json())
};