import {z} from 'zod'

export type ConversationMessage = {role: string, content: string};

export type InterviewQueryRequest = {query: string, anonymize?: boolean | undefined, top_k?: number | undefined, conversation_history?: (Array<ConversationMessage> | null) | undefined, model?: (string | null) | undefined};

export type CreateApiV1InterviewsInterviewIdGraphQueryArgs = {interview_id: string, 'X-API-Key'?: (string | null) | undefined, body: InterviewQueryRequest};

export type CreateApiV1InterviewsInterviewIdGraphQueryOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const patternOut = z.object({theme: z.string(), description: z.string(), mention_count: z.number().int(), total_respondents: z.number().int(), percentage: z.number(), departments_affected: z.array(z.string()), supporting_passage_keys: z.array(z.string())});

export const divergenceOut = z.object({topic: z.string(), position_a: z.string(), sources_a: z.array(z.string()), departments_a: z.array(z.string()), position_b: z.string(), sources_b: z.array(z.string()), departments_b: z.array(z.string()), magnitude: z.string()});

export const passageOut = z.object({key: z.string(), text: z.string(), contact_name: z.string().nullable().optional(), department: z.string().nullable().optional(), job_title: z.string().nullable().optional(), seniority_level: z.number().int().nullable().optional(), similarity_score: z.number().optional(), verification: z.string().nullable().optional()});

export const provenanceLinkOut = z.object({claim: z.string(), passages: z.array(passageOut)});

export const verificationOut = z.object({passed: z.boolean(), department_coverage: z.number(), departments_hit: z.array(z.string()), departments_missing: z.array(z.string()), passage_count: z.number().int(), unique_contacts: z.number().int()});

export const interviewQueryResponse = z.object({answer: z.string(), patterns: z.array(patternOut), divergences: z.array(divergenceOut), provenance: z.array(provenanceLinkOut), verification: verificationOut, query_complexity: z.string(), strategies_used: z.array(z.string())});

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
};

/**
 * Query Interview Graph
 * 
 * POST /v1/interviews/{interview_id}/graph/query
 */
export const createApiV1InterviewsInterviewIdGraphQuery = async (args: CreateApiV1InterviewsInterviewIdGraphQueryArgs, options: CreateApiV1InterviewsInterviewIdGraphQueryOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args['X-API-Key'] != null) headers.set("X-API-Key", String(args['X-API-Key']))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/interviews/${encodeURIComponent(String(args.interview_id))}/graph/query${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(interviewQueryResponse, await res.json())
};