import {z} from 'zod'

export type ConversationMessageDTO = {role: 'user' | 'assistant' | 'system' | 'tool', content: string, occurredAt?: (string | null) | undefined};

export type ConversationTurnUploadDTO = {provider: 'codex' | 'claude', providerSessionId: string, transcriptPathHash: string, firstCwd: string, providerTurnId: string, branch?: (string | null) | undefined, branchSource: 'transcript' | 'git_fallback' | 'missing', routingStatus: 'routable' | 'missing_branch' | 'missing_repo', headSha?: (string | null) | undefined, startedAt: string, completedAt?: (string | null) | undefined, messages?: Array<ConversationMessageDTO> | undefined};

export type CreateApiApiCliRepositoriesRepoIdConversationTurnsCompleteArgs = {repo_id: number, body: ConversationTurnUploadDTO};

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

export const conversationUploadResultDTO = z.object({sourceId: z.string(), turnId: z.string(), routingStatus: z.enum(["routable", "missing_branch", "missing_repo"]), messageCount: z.number().int()});

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
};

/**
 * Complete Conversation Turn
 * 
 * POST /api/cli/repositories/{repo_id}/conversation-turns/complete
 */
export const createApiApiCliRepositoriesRepoIdConversationTurnsComplete = async (args: CreateApiApiCliRepositoriesRepoIdConversationTurnsCompleteArgs, options: CreateApiApiCliRepositoriesRepoIdConversationTurnsCompleteOptions) => {
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 (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/cli/repositories/${encodeURIComponent(String(args.repo_id))}/conversation-turns/complete${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(conversationUploadResultDTO, await res.json())
};