import {z} from 'zod'

export type GetApiV1ConversationsByPhaseArgs = {status?: ('opened' | 'closed' | 'inactive') | undefined, tags?: string | undefined, fromDate?: string | undefined, toDate?: string | undefined, channel?: string | undefined, phase?: string | undefined, agent?: string | undefined, preAssigned?: string | undefined, condition?: string | undefined, utmSource?: string | undefined, utmMedium?: string | undefined, utmCampaign?: string | undefined, search?: string | undefined, limit?: number | undefined, offset?: number | undefined, page?: number | undefined, sort?: string | undefined};

export type GetApiV1ConversationsByPhaseOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const phase = z.object({id: z.string().optional(), name: z.string().optional(), order: z.number().int().optional()});

export const pagination = z.object({page: z.number().int().optional(), limit: z.number().int().optional(), total: z.number().int().optional(), totalPages: z.number().int().optional(), hasNext: z.boolean().optional(), hasPrev: z.boolean().optional()});

export const channel = z.enum(["FACEBOOK", "WEB", "WHATSAPP", "INSTAGRAM"]);

export const participant = z.object({id: z.string().optional(), name: z.string().optional(), type: z.enum(["robot", "visitor", "user", "externalOperator", "external_operator"]).optional(), addedAt: z.string().optional(), firstMessageAt: z.string().optional(), lastMessageAt: z.string().optional()});

export const conversationTag = z.object({tagName: z.string().optional(), source: z.enum(["human", "chatbot", "ai"]).optional(), additionDate: z.string().optional(), creatorUserId: z.string().optional()});

export const conversation = z.object({id: z.string().optional(), channelId: z.string().optional(), companyId: z.string().optional(), contactId: z.string().optional(), channel: channel.optional(), status: z.enum(["ACTIVE", "CLOSED", "AWAY", "INACTIVE", "FINALIZED"]).optional(), lastMessage: z.string().optional(), lastMessageAt: z.string().optional(), visitorName: z.string().optional(), visitorEmail: z.string().optional(), visitorPhone: z.string().optional(), participants: z.array(participant).optional(), assignedTo: z.string().optional(), preAssigned: z.string().optional(), persistentLastOperator: z.string().optional(), firstInterventionAt: z.string().nullable().optional(), utmSource: z.string().optional(), utmMedium: z.string().optional(), utmCampaign: z.string().optional(), gaClientId: z.string().optional(), phaseId: z.string().optional(), amount: z.number().optional(), type: z.string().optional(), operatorTags: z.array(conversationTag).optional(), tags: z.array(z.string()).optional(), closed: z.boolean().optional(), createdAt: z.string().optional()});

export const conversationListResponse = z.object({pagination: pagination.optional(), data: z.record(z.string(), conversation).optional()});

export const getApiV1ConversationsByPhaseResponse = z.object({phases: z.array(z.object({phase: phase.optional(), conversations: conversationListResponse.optional()})).optional()});

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
};

/**
 * Conversaciones agrupadas por fase
 * 
 * GET /v1/conversations/by-phase
 */
export const getApiV1ConversationsByPhase = async (args: GetApiV1ConversationsByPhaseArgs, options?: GetApiV1ConversationsByPhaseOptions) => {
const {baseUrl = "https://connect.cliengo.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.status != null) query.append("status", String(args.status))
if (args.tags != null) query.append("tags", String(args.tags))
if (args.fromDate != null) query.append("fromDate", String(args.fromDate))
if (args.toDate != null) query.append("toDate", String(args.toDate))
if (args.channel != null) query.append("channel", String(args.channel))
if (args.phase != null) query.append("phase", String(args.phase))
if (args.agent != null) query.append("agent", String(args.agent))
if (args.preAssigned != null) query.append("preAssigned", String(args.preAssigned))
if (args.condition != null) query.append("condition", String(args.condition))
if (args.utmSource != null) query.append("utmSource", String(args.utmSource))
if (args.utmMedium != null) query.append("utmMedium", String(args.utmMedium))
if (args.utmCampaign != null) query.append("utmCampaign", String(args.utmCampaign))
if (args.search != null) query.append("search", String(args.search))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.page != null) query.append("page", String(args.page))
if (args.sort != null) query.append("sort", String(args.sort))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/conversations/by-phase${query.size > 0 ? `?${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(getApiV1ConversationsByPhaseResponse, await res.json())
};