import {z} from 'zod'

export type CreateApiKnowledgeBasesUrlArgs = {urls: Array<string>, exclude_urls?: Array<string> | undefined, max_urls?: number | undefined, creativity?: number | undefined, open_to_internet_knowledge?: boolean | undefined, team_id?: string | undefined, knowledge_base_name: string};

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

export const modelType = z.enum(["gpt-4.1", "gpt-4.1-mini", "gpt-4.1-nano", "gpt-4-omnimodel-mini", "gpt-4-omnimodel", "gpt-4-omnimodel-128k", "gpt-4-turbo", "gpt-4-turbo-128k", "gpt-4", "gpt-4-32k", "gpt-3.5-turbo", "gpt-3.5-turbo-1106", "gpt-3.5-turbo-16k", "falcon", "mistral", "wizardlm", "gemma", "llama2", "llama3", "llama3_8b", "cohere", "claude_3_opus_9k", "claude_3_opus_32k", "claude_3_opus_128k", "claude_3_opus_200k", "claude_3_sonnet", "claude_3_dot_5_sonnet", "claude_3_haiku", "claude_3_dot_7_sonnet", "claude_4_opus", "claude_4_sonnet", "gemini-2.0-flash", "gemini-2.5-flash", "gemini-2.0-flash-lite", "gpt-5", "gpt-5-mini", "gpt-5-nano", "claude_4_dot_5_sonnet", "claude_4_dot_1_opus", "claude_4_dot_5_haiku", "gemini-2.5-pro", "gemini-2.5-flash-lite", "gpt-5.1", "gemini-3-pro", "gpt-5.2", "gpt-5.4", "gemini-3-flash", "claude_4_dot_6_opus", "claude_4_6_sonnet", "gpt-5.4-mini", "gpt-5.4-nano", "gpt-5.5", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna", "claude_4_7_opus", "claude_4_8_opus", "claude_5_opus", "claude_5_sonnet"]);

export const knowledgeBase = z.object({id: z.string().optional(), date_created: z.string().optional(), date_updated: z.string().optional(), knowledge_base_name: z.string(), indexed: z.object({}).optional(), user_id: z.string(), created_by: z.string().optional(), team_id: z.string().optional(), type: z.string().optional(), num_chars: z.number().int().optional(), vectordb_indexed: z.boolean().optional(), is_currently_training: z.boolean().optional(), last_model_used: modelType.optional(), new_design_activated: z.boolean().optional()});

export const file = z.object({id: z.string().optional(), date_created: z.string().optional(), date_updated: z.string().optional(), name: z.string(), path: z.string(), kb_id: z.string(), type: z.string().optional(), size: z.number().int().optional(), num_chars: z.number().int().optional(), thumbnail: z.string().optional(), file_metadata_id: z.string().optional()});

export const knowledgeBaseResults = z.object({knowledge_base: knowledgeBase, files: z.array(file), total_count: z.number().int().optional()});

export const knowledgeBaseResponse = z.object({results: knowledgeBaseResults});

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 Knowledge Base From Url
 * 
 * POST /knowledge-bases/url
 * 
 * Also accepts auth: OAuth2PasswordBearer
 */
export const createApiKnowledgeBasesUrl = async (args: CreateApiKnowledgeBasesUrlArgs, options: CreateApiKnowledgeBasesUrlOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

for (const item of args.urls ?? []) query.append("urls", String(item))
for (const item of args.exclude_urls ?? []) query.append("exclude_urls", String(item))
if (args.max_urls != null) query.append("max_urls", String(args.max_urls))
if (args.creativity != null) query.append("creativity", String(args.creativity))
if (args.open_to_internet_knowledge != null) query.append("open_to_internet_knowledge", String(args.open_to_internet_knowledge))
if (args.team_id != null) query.append("team_id", String(args.team_id))
if (args.knowledge_base_name != null) query.append("knowledge_base_name", String(args.knowledge_base_name))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/knowledge-bases/url${query.size > 0 ? `?${query}` : ''}`

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

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

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