import {z} from 'zod'

export type GetApiV1ConversationsConversationIdMessagesArgs = {conversation_id: string};

export type GetApiV1ConversationsConversationIdMessagesOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const textChunk = z.object({type: z.literal("text").optional(), text: z.string()});

export const imageDetail = z.enum(["low", "auto", "high"]);

export const imageURL = z.object({url: z.string(), detail: imageDetail.nullable().optional()});

export const imageURLChunk = z.object({type: z.literal("image_url").optional(), image_url: z.union([imageURL, z.string()])});

export const builtInConnectors = z.enum(["web_search", "web_search_premium", "code_interpreter", "image_generation", "document_library", "mistral_mcp"]);

export const toolFileChunk = z.object({type: z.literal("tool_file").optional(), tool: z.union([builtInConnectors, z.string()]), file_id: z.string(), file_name: z.string().nullable().optional(), file_type: z.string().nullable().optional()});

export const documentURLChunk = z.object({type: z.literal("document_url").optional(), document_url: z.string(), document_name: z.string().nullable().optional()});

export const toolReferenceChunk = z.object({type: z.literal("tool_reference").optional(), tool: z.union([builtInConnectors, z.string()]), title: z.string(), url: z.string().nullable().optional(), favicon: z.string().nullable().optional(), description: z.string().nullable().optional()});

export const referenceChunk = z.object({type: z.literal("reference").optional(), reference_ids: z.array(z.union([z.number().int(), z.string()]))});

export const thinkChunk = z.object({type: z.literal("thinking").optional(), thinking: z.array(z.union([textChunk, toolReferenceChunk, referenceChunk])), signature: z.string().nullable().optional(), closed: z.boolean().optional()});

export const messageInputContentChunks = z.array(z.union([textChunk, imageURLChunk, toolFileChunk, documentURLChunk, thinkChunk]));

export const messageInputEntry = z.object({object: z.literal("entry").optional(), type: z.literal("message.input").optional(), created_at: z.string().optional(), completed_at: z.string().nullable().optional(), id: z.string().optional(), role: z.enum(["assistant", "user"]), content: z.union([z.string(), messageInputContentChunks]), prefix: z.boolean().optional()});

export const messageOutputContentChunks = z.array(z.union([textChunk, imageURLChunk, toolFileChunk, documentURLChunk, thinkChunk, toolReferenceChunk]));

export const messageOutputEntry = z.object({object: z.literal("entry").optional(), type: z.literal("message.output").optional(), created_at: z.string().optional(), completed_at: z.string().nullable().optional(), agent_id: z.string().nullable().optional(), model: z.string().nullable().optional(), id: z.string().optional(), role: z.literal("assistant").optional(), content: z.union([z.string(), messageOutputContentChunks])});

export const messageEntries = z.array(z.union([messageInputEntry, messageOutputEntry]));

export const conversationMessages = z.object({object: z.literal("conversation.messages").optional(), conversation_id: z.string(), messages: messageEntries});

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
};

/**
 * Retrieve all messages in a conversation.
 * 
 * GET /v1/conversations/{conversation_id}/messages
 */
export const getApiV1ConversationsConversationIdMessages = async (args: GetApiV1ConversationsConversationIdMessagesArgs, options?: GetApiV1ConversationsConversationIdMessagesOptions) => {
const {baseUrl = "https://api.mistral.ai", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/conversations/${encodeURIComponent(String(args.conversation_id))}/messages${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(conversationMessages, await res.json())
};