import {z} from 'zod'

export type GetApiV1EventsArgs = {limit?: number | undefined, after?: string | undefined, before?: string | undefined, state?: ('all' | 'any' | 'confirmed' | 'canceled' | 'awaiting_reschedule' | 'awaiting_checkout' | 'checkout_expired' | 'awaiting_approval' | 'declined' | 'tentative') | undefined, period?: ('past' | 'upcoming' | 'fixed' | 'all') | undefined, from?: string | undefined, until?: string | undefined, time_zone?: string | undefined, q?: string | undefined, direction?: ('asc' | 'desc') | undefined, attendance?: ('attending' | 'any') | undefined, link?: string | undefined};

export type GetApiV1EventsOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const linkPreview = z.object({description: z.string(), id: z.string(), name: z.string(), private_name: z.string().nullable(), slug: z.string()});

export const pollPreview = z.object({id: z.string(), name: z.string(), slug: z.string()});

export const fieldOption = z.object({id: z.string(), value: z.string()});

export const eventField = z.object({id: z.string(), label: z.string(), options: z.array(fieldOption), type: z.enum(["short_text", "long_text", "checkboxes", "radios", "select", "url", "hidden"]), value: z.string().nullable()});

export const eventAttendee = z.object({display_name: z.string(), email: z.string(), fields: z.array(eventField), first_name: z.string(), id: z.string(), is_organizer: z.boolean(), last_name: z.string(), marketing_opt_in: z.boolean(), phone_number: z.string().nullable().optional(), response_status: z.enum(["accepted", "tentative", "needs_action", "declined"]), time_zone: z.string()});

export const payment = z.object({amount_total: z.number().int().nullable(), state: z.enum(["awaiting_checkout", "paid"]), url: z.string().nullable()});

export const scopePreview = z.object({id: z.string(), name: z.string(), slug: z.string()});

export const event = z.object({canceled_at: z.string().nullable().optional(), rescheduled_at: z.string().nullable().optional(), location_settings: z.array(z.object({type: z.string()}).and(z.record(z.string(), z.unknown()))).optional(), description_settings: z.object({include_attendees: z.boolean(), include_fields: z.boolean(), include_link_name: z.boolean()}), location: z.string().nullable().optional(), buffer_before: z.number().int(), additional_info: z.string().nullable().optional(), duration: z.number().int(), uuid: z.string(), reschedule_reason: z.string().nullable().optional(), conferencing: z.object({instructions: z.string().nullable().optional(), join_url: z.string().nullable().optional(), meeting_id: z.string().nullable().optional(), type: z.string()}), link: linkPreview.nullable().optional(), poll: pollPreview.nullable().optional(), summary: z.string(), original_end_at: z.string().nullable().optional(), description: z.string().optional(), id: z.string(), cancel_reason: z.string().nullable().optional(), organizer: eventAttendee, is_group_session: z.boolean().nullable(), original_start_at: z.string().nullable().optional(), start_at: z.string(), url: z.string(), payment: payment.nullable().optional(), maximum_group_size: z.number().int().nullable(), end_at: z.string(), state: z.enum(["confirmed", "canceled", "awaiting_reschedule", "awaiting_checkout", "checkout_expired", "awaiting_approval", "declined", "tentative"]), attendees: z.array(eventAttendee), scheduler: eventAttendee.nullable().optional(), scope: scopePreview.nullable().optional(), buffer_after: z.number().int(), metadata: z.object({}), created_at: z.string()});

export const paginationMeta = z.object({after: z.string().nullable().optional(), before: z.string().nullable().optional(), limit: z.number().int()});

export const eventListResponse = z.object({entries: z.array(event), metadata: paginationMeta});

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 events
 * 
 * GET /v1/events
 * 
 * Also accepts auth: PersonalAccessToken
 */
export const getApiV1Events = async (args: GetApiV1EventsArgs, options?: GetApiV1EventsOptions) => {
const {baseUrl = "https://api.savvycal.com", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.after != null) query.append("after", String(args.after))
if (args.before != null) query.append("before", String(args.before))
if (args.state != null) query.append("state", String(args.state))
if (args.period != null) query.append("period", String(args.period))
if (args.from != null) query.append("from", String(args.from))
if (args.until != null) query.append("until", String(args.until))
if (args.time_zone != null) query.append("time_zone", String(args.time_zone))
if (args.q != null) query.append("q", String(args.q))
if (args.direction != null) query.append("direction", String(args.direction))
if (args.attendance != null) query.append("attendance", String(args.attendance))
if (args.link != null) query.append("link", String(args.link))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/events${query.size > 0 ? `?${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(eventListResponse, await res.json())
};