import {z} from 'zod'

export type GetApiBackupAndDrPoliciesArgs = {page?: number | undefined, page_size?: number | undefined, search?: string | undefined, status?: (Array<'Active' | 'Inactive'>) | undefined, integration_id?: Array<string> | undefined, region?: Array<string> | undefined, provider_type?: Array<string> | undefined, sort_by?: ('status' | 'snapshots_count' | 'policy_name' | 'created_at' | 'last_backup_time') | undefined, sort_order?: ('asc' | 'desc') | undefined};

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

export const scheduleFrequency = z.enum(["One-time", "Daily", "Weekly", "Monthly"]);

export const scheduleConfig = z.object({frequency: scheduleFrequency, hour: z.number().int().gte(0).lte(23).optional(), minute: z.number().int().gte(0).lte(59).optional(), days_of_week: z.array(z.enum(["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"])).optional(), monthly_schedule_type: z.enum(["specific_day", "specific_weekday", "last_day"]).optional(), day_of_month: z.number().int().gte(1).lte(31).optional(), weekday_ordinal: z.enum(["First", "Second", "Third", "Fourth", "Last"]).optional(), weekday_name: z.enum(["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]).optional(), cron_expression: z.string().optional()});

export const scopeConfig = z.object({type: z.enum(["tags", "resource_group", "asset_types", "exclude_asset_types", "selected_resources"]), value: z.array(z.string())});

export const applicationScope = z.array(scopeConfig);

export const vCSConfig = z.object({project_id: z.string().optional(), vcs_integration_id: z.string().optional(), repo_id: z.string().optional()});

export const policyStatus = z.enum(["Active", "Inactive"]);

export const policy = z.object({account_id: z.string().optional(), policy_id: z.string().optional(), policy_name: z.string().optional(), description: z.string().optional(), integration_id: z.string().optional(), region: z.string().optional(), provider_type: z.string().max(50).optional(), schedule: scheduleConfig.optional(), scope: applicationScope.optional(), notificationId: z.string().optional(), vcs: vCSConfig.optional(), restore_instructions: z.string().optional(), status: policyStatus.optional(), snapshots_count: z.number().int().optional(), last_backup_snapshot_id: z.string().optional(), last_backup_time: z.string().optional(), last_backup_status: z.string().optional(), next_backup_time: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional()});

export const pagination = z.object({page: z.number().int(), page_size: z.number().int(), total: z.number().int(), has_next: z.boolean(), has_prev: z.boolean()});

export const facetValue = z.object({value: z.string().optional(), count: z.number().int().optional()});

export const facet = z.object({field: z.string(), size: z.number().int(), pagination: pagination, values: z.array(facetValue)});

export const policyListResponse = z.object({data: z.array(policy).optional(), pagination: pagination.optional(), facets: z.array(facet).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
};

/**
 * List backup policies
 * 
 * GET /backup-and-dr/policies
 */
export const getApiBackupAndDrPolicies = async (args: GetApiBackupAndDrPoliciesArgs, options?: GetApiBackupAndDrPoliciesOptions) => {
const {baseUrl = "https://api.firefly.ai/v2", fetch: fetchFn = fetch} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.search != null) query.append("search", String(args.search))
for (const item of args.status ?? []) query.append("status", String(item))
for (const item of args.integration_id ?? []) query.append("integration_id", String(item))
for (const item of args.region ?? []) query.append("region", String(item))
for (const item of args.provider_type ?? []) query.append("provider_type", String(item))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.sort_order != null) query.append("sort_order", String(args.sort_order))

const url = `${baseUrl.replace(/\/+$/, '')}/backup-and-dr/policies${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(policyListResponse, await res.json())
};