import {z} from 'zod'

export type GetApiApiV1AuditSessionSummaryArgs = {'X-Tenant-ID': string, start_date: string, end_date: string, user_email?: string | undefined, limit?: number | undefined};

export type GetApiApiV1AuditSessionSummaryOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const sessionSummaryUsageMetrics = z.object({lines_of_code: z.number().int().optional(), active_time_seconds: z.number().optional(), commits: z.number().int().optional(), pull_requests: z.number().int().optional(), tool_permission_decisions: z.object({accept: z.number().int().optional(), reject: z.number().int().optional()}).optional(), session_count: z.number().int().optional(), tokens_used: z.number().int().optional(), cache_tokens: z.number().int().optional(), cost_usd: z.number().optional()});

export const sessionSummaryBucket = z.object({session_id: z.string().optional(), day: z.string().optional(), user_email: z.string().optional(), tenant_id: z.string().optional(), start_time: z.string().optional(), end_time: z.string().optional(), total: z.number().int().optional(), by_action: z.record(z.string(), z.number().int()).optional(), tools: z.array(z.object({request_type: z.string().optional(), count: z.number().int().optional(), tokens_used: z.number().int().optional(), cost: z.number().optional(), avg_latency_ms: z.number().nullable().optional(), latency_sample_count: z.number().int().optional()})).optional(), tokens_used: z.number().int().optional(), cost: z.number().optional(), avg_latency_ms: z.number().nullable().optional(), latency_sample_count: z.number().int().optional(), usage_metrics: sessionSummaryUsageMetrics.optional()});

export const sessionSummaryResponse = z.object({tenant_id: z.string().optional(), user_email: z.string().optional(), start_date: z.string().optional(), end_date: z.string().optional(), buckets: z.array(sessionSummaryBucket).optional(), bucket_limit: z.number().int().optional(), truncated: z.boolean().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
};

/**
 * Session-level usage summary (Enterprise)
 * 
 * GET /api/v1/audit/session-summary
 */
export const getApiApiV1AuditSessionSummary = async (args: GetApiApiV1AuditSessionSummaryArgs, options?: GetApiApiV1AuditSessionSummaryOptions) => {
const {baseUrl = "https://orchestrator.getaxonflow.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-Tenant-ID'] != null) headers.set("X-Tenant-ID", String(args['X-Tenant-ID']))
if (args.start_date != null) query.append("start_date", String(args.start_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
if (args.user_email != null) query.append("user_email", String(args.user_email))
if (args.limit != null) query.append("limit", String(args.limit))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/audit/session-summary${query.size > 0 ? `?${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(sessionSummaryResponse, await res.json())
};