import {z} from 'zod'

export type GetApiApiV1EquitiesSymbolNewsSentimentArgs = {symbol: string, timespan?: string | undefined};

export type GetApiApiV1EquitiesSymbolNewsSentimentOptions = {baseUrl?: string | undefined, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const timelinePoint = z.object({date: z.string(), value: z.number()});

export const sentimentBlock = z.object({latest_tone: z.number().nullable().optional(), average_tone: z.number().nullable().optional(), timeline: z.array(timelinePoint).optional(), scale: z.string(), unavailable_reason: z.string().nullable().optional()}).and(z.record(z.string(), z.unknown()));

export const attentionBlock = z.object({timeline: z.array(timelinePoint).optional(), first_party_article_count: z.number().int().optional(), unavailable_reason: z.string().nullable().optional()}).and(z.record(z.string(), z.unknown()));

export const newsHeadline = z.object({title: z.string().nullable().optional(), source: z.string().nullable().optional(), published: z.string().nullable().optional(), url: z.string().nullable().optional()}).and(z.record(z.string(), z.unknown()));

export const newsSentimentData = z.object({symbol: z.string(), company_name: z.string(), former_names: z.array(z.string()).optional(), cik: z.string().nullable().optional(), match_basis: z.string().optional(), entity_unavailable_reason: z.string().nullable().optional(), query: z.string(), timespan: z.string(), sentiment: sentimentBlock, attention: attentionBlock, no_articles_matched: z.boolean().nullable().optional(), recent_headlines: z.array(newsHeadline).optional(), source: z.string().optional(), note: z.string()}).and(z.record(z.string(), z.unknown()));

export const sugraMeta = z.object({endpoint: z.string(), data_time: z.string(), response_time: z.string(), provider: z.string(), data_age_days: z.number().nullable().optional(), source: z.string().nullable().optional(), attribution: z.string().nullable().optional(), source_url: z.string().nullable().optional(), citation: z.string().nullable().optional(), fallback_used: z.boolean().nullable().optional(), fallback_chain: z.array(z.string()).nullable().optional(), cached: z.boolean().nullable().optional(), stale: z.boolean().nullable().optional(), stale_since: z.string().nullable().optional(), period: z.string().nullable().optional(), notes: z.string().nullable().optional()});

export const envelopeNewsSentimentData = z.object({data: newsSentimentData, meta: sugraMeta});

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
};

/**
 * Per-ticker news-flow sentiment + attention
 * 
 * GET /api/v1/equities/{symbol}/news-sentiment
 */
export const getApiApiV1EquitiesSymbolNewsSentiment = async (args: GetApiApiV1EquitiesSymbolNewsSentimentArgs, options?: GetApiApiV1EquitiesSymbolNewsSentimentOptions) => {
const {baseUrl = "https://sugra.ai", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.timespan != null) query.append("timespan", String(args.timespan))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/equities/${encodeURIComponent(String(args.symbol))}/news-sentiment${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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