import {z} from 'zod'

export type APIPromptInputModel = {text: string, persona_id?: (number | null) | undefined, stage?: (string | null) | undefined, tags?: Array<string> | undefined, key_topics?: Array<string> | undefined, language?: (string | null) | undefined, platforms?: (Array<'chatgpt' | 'claude' | 'google_ai_overviews' | 'perplexity' | 'meta' | 'google_ai_mode' | 'google_gemini' | 'copilot' | 'grok'>) | undefined};

export type CreateApiBrandIdPromptsArgs = {brand_id: number, body: APIPromptInputModel};

export type CreateApiBrandIdPromptsOptions = {baseUrl?: string | undefined, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const promptListing = z.object({id: z.number().int(), text: z.string(), stage: z.string(), persona_id: z.number().int().nullable(), platforms: z.array(z.enum(["chatgpt", "claude", "google_ai_overviews", "perplexity", "meta", "google_ai_mode", "google_gemini", "copilot", "grok"])), tags: z.array(z.string()), topics: z.array(z.string()), status: z.enum(["active", "paused", "archived"]), created_at: z.string()});

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
};

/**
 * Create Prompt
 * 
 * POST /{brand_id}/prompts
 */
export const createApiBrandIdPrompts = async (args: CreateApiBrandIdPromptsArgs, options?: CreateApiBrandIdPromptsOptions) => {
const {baseUrl = "https://api.scrunchai.com/v1", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.brand_id))}/prompts${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(promptListing, await res.json())
};