import {z} from 'zod'

export type ApproveProposalRequest = {notes?: (string | null) | undefined};

export type CreateApiV1ProposalsProposalIdApproveArgs = {proposal_id: string, body: ApproveProposalRequest};

export type CreateApiV1ProposalsProposalIdApproveOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const proposedMutation = z.object({gene_name: z.string(), current_value: z.unknown(), proposed_value: z.unknown(), rationale: z.string(), confidence: z.number()});

export const proposal = z.object({id: z.string(), team_id: z.string(), agent_id: z.string(), genome_id: z.string(), genome_version: z.number().int(), status: z.string(), created_at: z.number().int(), trigger_summary: z.string().optional(), mutations: z.array(proposedMutation).optional(), pre_fitness: z.record(z.string(), z.number()).nullable().optional(), post_fitness: z.record(z.string(), z.number()).nullable().optional(), fitness_delta: z.record(z.string(), z.number()).nullable().optional(), net_fitness_delta: z.number().nullable().optional(), reviewed_at: z.number().int().nullable().optional(), reviewed_by: z.string().nullable().optional(), reviewer_notes: z.string().nullable().optional(), engine_name: z.string().nullable().optional(), extra: z.record(z.string(), z.unknown()).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
};

/**
 * Approve Proposal
 * 
 * POST /v1/proposals/{proposal_id}/approve
 */
export const createApiV1ProposalsProposalIdApprove = async (args: CreateApiV1ProposalsProposalIdApproveArgs, options: CreateApiV1ProposalsProposalIdApproveOptions) => {
const {baseUrl, 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/proposals/${encodeURIComponent(String(args.proposal_id))}/approve${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(proposal, await res.json())
};