import {z} from 'zod'

export type CreateApiApiOrgIdFleetRolloutsIdRollbackArgs = {org_id: string, id: string};

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

export const batching = z.union([z.object({kind: z.literal("one")}), z.object({first: z.number().int().gte(0), kind: z.literal("canary")}), z.object({initial: z.number().int().gte(0), kind: z.literal("progressive"), max: z.number().int().gte(0), multiplier: z.number().int().gte(0)})]);

export const rolloutEvent = z.object({at: z.number().int(), detail: z.string().nullable().optional(), key: z.string(), phase: z.number().int().gte(0).nullable().optional()});

export const collectorFleet = z.object({id: z.string(), name: z.string().nullable().optional()});

export const haltClass = z.enum(["proven_bad", "looks_worse", "cannot_see"]);

export const haltExit = z.enum(["rollback", "resume", "fix_forward", "skip"]);

export const rolloutHalt = z.object({at: z.number().int(), class: haltClass, exits: z.array(haltExit), reason: z.string()});

export const fleetVersion = z.object({config: z.string(), version: z.number().int()});

export const deliveryEvidence = z.object({last_heartbeat_at: z.number().int().nullable().optional(), marker: fleetVersion.nullable().optional(), remote_at: z.number().int().nullable().optional(), remote_hash: z.string().nullable().optional(), remote_status: z.string().nullable().optional()});

export const memberState = z.enum(["pending", "assigned", "sent", "accepted", "running", "rejected", "removed"]);

export const rolloutMember = z.object({collector_id: z.string(), evidence: deliveryEvidence.nullable().optional(), excluded: z.boolean(), phase: z.number().int().gte(0), state: memberState});

export const gateResult = z.object({observed: z.string(), passed: z.boolean()});

export const phaseStatus = z.enum(["pending", "deploying", "converging", "observing", "verifying", "done", "failed", "stopped", "timed_out"]);

export const rolloutPhase = z.object({confirmed: z.number().int().gte(0), gate: gateResult.nullable().optional(), index: z.number().int().gte(0), rejected: z.number().int().gte(0), sent: z.number().int().gte(0), size: z.number().int().gte(0), status: phaseStatus, targeted: z.number().int().gte(0)});

export const rolloutStart = z.union([z.object({kind: z.literal("now")}), z.object({at: z.number().int(), kind: z.literal("at")})]);

export const rolloutStatus = z.enum(["scheduled", "waiting", "in_progress", "halted", "completed", "superseded", "rolled_back"]);

export const rollout = z.object({auto_rollback: z.boolean(), batching: batching, config: z.string(), ended_at: z.number().int().nullable().optional(), events: z.array(rolloutEvent), fleet: collectorFleet, from_version: z.number().int().nullable().optional(), halt: rolloutHalt.nullable().optional(), id: z.string(), members: z.array(rolloutMember), phases: z.array(rolloutPhase), running: z.number().int().gte(0), start: rolloutStart, started_at: z.number().int(), started_by: z.string(), status: rolloutStatus, to_version: z.number().int(), total: z.number().int().gte(0), verify: z.boolean()});

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
};

/**
 * Roll back to stable, or to the placeholder without one, and mark this rollout rolled back
 * 
 * POST /api/{org_id}/fleet/rollouts/{id}/rollback
 */
export const createApiApiOrgIdFleetRolloutsIdRollback = async (args: CreateApiApiOrgIdFleetRolloutsIdRollbackArgs, options: CreateApiApiOrgIdFleetRolloutsIdRollbackOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.org_id))}/fleet/rollouts/${encodeURIComponent(String(args.id))}/rollback${query.size > 0 ? `?${query}` : ''}`

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

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

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