import {z} from 'zod'

export type ModelColumnDocumented = {name_in_source: string, name_in_destination: string, data_type: string, is_primary_key: boolean, is_last_modified: boolean};

export type ModelConfigDocumented = {model_name: string, description?: string | undefined, columns: Array<ModelColumnDocumented>, source_id: string, source_table?: string | undefined, source_query?: string | undefined, destination_table_name?: string | undefined, organization_column?: string | undefined, skip_transfer_source_validation?: boolean | undefined, is_append_only?: boolean | undefined, model_validation_id_in_provider_system?: string | undefined, model_validation_start_time_epoch?: string | undefined, model_validation_end_time_epoch?: string | undefined, model_validation_tags?: {[key: string]: string} | undefined};

export type CreateModelConfigRequestDocumented = {model: ModelConfigDocumented, skip_model_validation?: boolean | undefined};

export type CreateApiModelsArgs = {body: CreateModelConfigRequestDocumented};

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

export const modelColumnDocumented = z.object({name_in_source: z.string(), name_in_destination: z.string(), data_type: z.string(), is_primary_key: z.boolean(), is_last_modified: z.boolean()});

export const modelConfigDocumented = z.object({model_name: z.string(), description: z.string().optional(), columns: z.array(modelColumnDocumented), source_id: z.string(), source_table: z.string().optional(), source_query: z.string().optional(), destination_table_name: z.string().optional(), organization_column: z.string().optional(), skip_transfer_source_validation: z.boolean().optional(), is_append_only: z.boolean().optional(), model_validation_id_in_provider_system: z.string().optional(), model_validation_start_time_epoch: z.string().optional(), model_validation_end_time_epoch: z.string().optional(), model_validation_tags: z.record(z.string(), z.string()).optional()});

export const modelConfigResponseDocumented = z.object({model: modelConfigDocumented});

export const createApiModelsResponse = z.object({status: z.literal("success"), data: modelConfigResponseDocumented, message: 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
};

/**
 * Create model
 * 
 * POST /models
 */
export const createApiModels = async (args: CreateApiModelsArgs, options?: CreateApiModelsOptions) => {
const {baseUrl = "https://api.prequel.co", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-API-KEY", ApiKeyAuth)

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