import {z} from 'zod'

export type AnnotationContextItem = {kind?: 'annotation' | undefined, measurement_id: string};

export type RegionContextItem = {kind?: 'region' | undefined, page_id: string, x: number, y: number, width: number, height: number};

export type UiState = {active_takeoff_tool?: (string | null) | undefined, active_markup_tool?: (string | null) | undefined, selected_measurement_ids?: Array<string> | undefined, selected_annotation_ids?: Array<string> | undefined, total_selected?: (number | null) | undefined};

export type MessageContext = {active_page_id?: (string | null) | undefined, items?: (Array<AnnotationContextItem | RegionContextItem>) | undefined, ui_state?: (UiState | null) | undefined};

export type OverlaySheetStatus = {page_id: string, page_identity_id: string, from_page_id: string, to_page_id: string, status: 'pending' | 'diffed' | 'summarized' | 'misaligned' | 'failed', change_count: number};

export type OverlayChangeInstance = {page_id: string, x: number, y: number, width: number, height: number};

export type OverlayChange = {change_id: string, page_id: string, x: number, y: number, width: number, height: number, title?: (string | null) | undefined, summary?: (string | null) | undefined, significance?: ('substantive' | 'administrative' | 'cosmetic' | null) | undefined, confidence?: (number | null) | undefined, cloud_marked?: boolean | undefined, instances?: (Array<OverlayChangeInstance> | null) | undefined, dead_ink?: number | undefined, new_ink?: number | undefined};

export type OverlayChangeSet = {from_revision_id: string, to_revision_id: string, fingerprint: string, status: 'running' | 'ready' | 'partial', canceled?: boolean | undefined, truncated?: boolean | undefined, sheets: Array<OverlaySheetStatus>, changes: Array<OverlayChange>};

export type OverlayChangeSetArtifact = {kind?: 'overlay_change_set' | undefined, version?: 2 | undefined, body: OverlayChangeSet};

export type PostMessageRequest = {content: string, context?: (MessageContext | null) | undefined, client_artifacts?: Array<OverlayChangeSetArtifact> | undefined};

export type CreateApiApiV1ConversationsConversationIdMessagesArgs = {conversation_id: string, rev?: (string | null) | undefined, body: PostMessageRequest};

export type CreateApiApiV1ConversationsConversationIdMessagesOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const createApiApiV1ConversationsConversationIdMessagesResponse = z.unknown();

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
};

/**
 * Post Message
 * 
 * POST /api/v1/conversations/{conversation_id}/messages
 */
export const createApiApiV1ConversationsConversationIdMessages = async (args: CreateApiApiV1ConversationsConversationIdMessagesArgs, options: CreateApiApiV1ConversationsConversationIdMessagesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.rev != null) query.append("rev", String(args.rev))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/conversations/${encodeURIComponent(String(args.conversation_id))}/messages${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(createApiApiV1ConversationsConversationIdMessagesResponse, await res.json())
};