import {z} from 'zod'

export type GetApiApiV1AiAgentsAdminMcpActivityStatsArgs = {projectUuids?: Array<string> | undefined, userUuids?: Array<string> | undefined, agentUuids?: Array<string> | undefined, toolNames?: Array<string> | undefined, clientNames?: Array<string> | undefined, dateFrom?: string | undefined, dateTo?: string | undefined};

export type GetApiApiV1AiAgentsAdminMcpActivityStatsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const mcpActivitySessionGroup = z.object({errorCount: z.number(), callCount: z.number(), key: z.string()});

export const mcpActivityStatus = z.enum(["success", "error"]);

export const recordStringUnknown = z.record(z.string(), z.unknown());

export const mcpActivityItem = z.object({sessionGroup: mcpActivitySessionGroup.nullable(), sessionId: z.string().nullable(), protocolVersion: z.string().nullable(), authType: z.string(), userAgent: z.string().nullable(), clientVersion: z.string().nullable(), clientName: z.string().nullable(), durationMs: z.number(), errorMessage: z.string().nullable(), status: mcpActivityStatus, toolArgs: recordStringUnknown, toolName: z.string(), agent: z.object({name: z.string(), uuid: z.string()}).nullable(), project: z.object({name: z.string(), uuid: z.string()}).nullable(), user: z.object({email: z.string().nullable(), name: z.string(), uuid: z.string()}), createdAt: z.string(), uuid: z.string()});

export const mcpActivityAgentCount = z.object({count: z.number(), agent: z.object({name: z.string(), uuid: z.string()}).nullable()});

export const mcpActivityToolCount = z.object({count: z.number(), toolName: z.string()});

export const mcpActivityStats = z.object({recentErrors: z.array(mcpActivityItem), agents: z.array(mcpActivityAgentCount), topTools: z.array(mcpActivityToolCount), errorCalls: z.number(), totalCalls: z.number()});

export const apiMcpActivityStatsResponse = z.object({results: mcpActivityStats, status: z.literal("ok")});

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
};

/**
 * Get MCP activity stats
 * 
 * GET /api/v1/aiAgents/admin/mcp-activity/stats
 */
export const getApiApiV1AiAgentsAdminMcpActivityStats = async (args: GetApiApiV1AiAgentsAdminMcpActivityStatsArgs, options: GetApiApiV1AiAgentsAdminMcpActivityStatsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

for (const item of args.projectUuids ?? []) query.append("projectUuids", String(item))
for (const item of args.userUuids ?? []) query.append("userUuids", String(item))
for (const item of args.agentUuids ?? []) query.append("agentUuids", String(item))
for (const item of args.toolNames ?? []) query.append("toolNames", String(item))
for (const item of args.clientNames ?? []) query.append("clientNames", String(item))
if (args.dateFrom != null) query.append("dateFrom", String(args.dateFrom))
if (args.dateTo != null) query.append("dateTo", String(args.dateTo))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/aiAgents/admin/mcp-activity/stats${query.size > 0 ? `?${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(apiMcpActivityStatsResponse, await res.json())
};