import {z} from 'zod'

export type ToolCallData = {name: string, description: string, inputParameters?: {[key: string]: unknown} | undefined, output?: string | undefined, reasoning?: string | undefined};

export type BaseSpan = {uuid: string, name: string, input?: string | undefined, output?: string | undefined, error?: string | undefined, status?: ('SUCCESS' | 'ERRORED') | undefined, startTime: string, endTime: string, parentUuid?: string | undefined, metadata?: {[key: string]: unknown} | undefined, metricCollection?: string | undefined, type?: string | undefined, retrievalContext?: Array<string> | undefined, context?: Array<string> | undefined, expectedOutput?: string | undefined, toolsCalled?: Array<ToolCallData> | undefined, expectedTools?: Array<ToolCallData> | undefined, integration?: string | undefined};

export type LlmSpan = {uuid?: string | undefined, name?: string | undefined, input?: string | undefined, output?: string | undefined, error?: string | undefined, status?: ('SUCCESS' | 'ERRORED') | undefined, startTime?: string | undefined, endTime?: string | undefined, parentUuid?: string | undefined, metadata?: {[key: string]: unknown} | undefined, metricCollection?: string | undefined, type?: string | undefined, retrievalContext?: Array<string> | undefined, context?: Array<string> | undefined, expectedOutput?: string | undefined, toolsCalled?: Array<ToolCallData> | undefined, expectedTools?: Array<ToolCallData> | undefined, model: string, provider?: string | undefined, integration?: string | undefined, promptAlias?: string | undefined, promptCommitHash?: string | undefined, promptLabel?: string | undefined, promptVersion?: string | undefined, costPerInputToken?: number | undefined, costPerOutputToken?: number | undefined, inputTokenCount?: number | undefined, outputTokenCount?: number | undefined};

export type RetrieverSpan = {uuid?: string | undefined, name?: string | undefined, input?: string | undefined, output?: string | undefined, error?: string | undefined, status?: ('SUCCESS' | 'ERRORED') | undefined, startTime?: string | undefined, endTime?: string | undefined, parentUuid?: string | undefined, metadata?: {[key: string]: unknown} | undefined, metricCollection?: string | undefined, type?: string | undefined, retrievalContext?: Array<string> | undefined, context?: Array<string> | undefined, expectedOutput?: string | undefined, integration?: string | undefined, toolsCalled?: Array<ToolCallData> | undefined, expectedTools?: Array<ToolCallData> | undefined, embedder: string, topK?: number | undefined, chunkSize?: number | undefined};

export type ToolSpan = {uuid?: string | undefined, name?: string | undefined, input?: string | undefined, output?: string | undefined, error?: string | undefined, integration?: string | undefined, status?: ('SUCCESS' | 'ERRORED') | undefined, startTime?: string | undefined, endTime?: string | undefined, parentUuid?: string | undefined, metadata?: {[key: string]: unknown} | undefined, metricCollection?: string | undefined, type?: string | undefined, retrievalContext?: Array<string> | undefined, context?: Array<string> | undefined, expectedOutput?: string | undefined, toolsCalled?: Array<ToolCallData> | undefined, expectedTools?: Array<ToolCallData> | undefined, description?: string | undefined};

export type AgentSpan = {uuid?: string | undefined, name?: string | undefined, input?: string | undefined, output?: string | undefined, integration?: string | undefined, error?: string | undefined, status?: ('SUCCESS' | 'ERRORED') | undefined, startTime?: string | undefined, endTime?: string | undefined, parentUuid?: string | undefined, metadata?: {[key: string]: unknown} | undefined, metricCollection?: string | undefined, type?: string | undefined, retrievalContext?: Array<string> | undefined, context?: Array<string> | undefined, expectedOutput?: string | undefined, toolsCalled?: Array<ToolCallData> | undefined, expectedTools?: Array<ToolCallData> | undefined, availableTools?: Array<string> | undefined, agentHandoffs?: Array<string> | undefined};

export type TraceAttachment = {url?: string | undefined, dataBase64?: string | undefined, mimeType?: string | undefined};

export type Trace = {uuid: string, name?: string | undefined, input?: string | undefined, output?: string | undefined, startTime: string, endTime: string, environment?: ('production' | 'development' | 'staging' | 'testing') | undefined, metadata?: {[key: string]: unknown} | undefined, tags?: Array<string> | undefined, spans?: (Array<BaseSpan | LlmSpan | RetrieverSpan | ToolSpan | AgentSpan>) | undefined, threadId?: string | undefined, thread?: ({id?: string | undefined, metadata?: ({[key: string]: unknown} | null) | undefined, tags?: (Array<string> | null) | undefined}) | undefined, userId?: string | undefined, metricCollection?: string | undefined, testRunId?: string | undefined, retrievalContext?: Array<string> | undefined, context?: Array<string> | undefined, expectedOutput?: string | undefined, toolsCalled?: Array<ToolCallData> | undefined, expectedTools?: Array<ToolCallData> | undefined, attachments?: {[key: string]: TraceAttachment} | undefined};

export type CreateApiV1TracesArgs = {body: Trace};

export type CreateApiV1TracesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const createTraceResponse = z.object({success: z.boolean(), data: z.object({id: z.string().optional()}), link: z.string(), deprecated: z.boolean()});

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
};

/**
 * Trace Ingestion
 * 
 * POST /v1/traces
 */
export const createApiV1Traces = async (args: CreateApiV1TracesArgs, options?: CreateApiV1TracesOptions) => {
const {baseUrl = "https://api.confident-ai.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/traces${query.size > 0 ? `?${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(createTraceResponse, await res.json())
};