import {
  mockAuditEvents,
  mockIdentitySetting,
  mockIdps,
  mockLimits,
  mockPolicies,
  mockRecipients,
  mockSignOnRules,
  mockSubscriptions,
  mockUserDetails,
  mockUsers,
} from './mock'
import { mockOn, mocked, request } from './request'
import type {
  AuditEventsResult,
  IamUser,
  IdentityDomain,
  IamUserDetail,
  IdentityProvider,
  IdentitySetting,
  LimitItem,
  LimitService,
  NotificationRecipients,
  PasswordPolicy,
  SignOnRule,
  SubscriptionDetail,
  SubscriptionSummary,
} from '@/types/api'

// ---- 配额 ----
export interface LimitsQuery {
  service?: string
  region?: string
  name?: string
  scopeType?: 'GLOBAL' | 'REGION' | 'AD'
  availabilityDomain?: string
  /** 服务端过滤上限为 0 的配额项，查用量时不占并发名额 */
  nonZero?: boolean
  withAvailability?: boolean
}

export function listLimits(id: number, query: LimitsQuery = {}): Promise<LimitItem[]> {
  if (mockOn) {
    if (query.service === 'regions')
      return mocked([{ name: 'subscribed-region-count', scopeType: 'GLOBAL', value: 3 }])
    const needle = (query.name ?? '').toLowerCase()
    return mocked(
      mockLimits
        .filter((l) => !needle || l.name.toLowerCase().includes(needle))
        .filter((l) => !query.scopeType || l.scopeType === query.scopeType)
        .filter((l) => !query.nonZero || l.value > 0),
    )
  }
  return request(`/oci-configs/${id}/limits`, { query: { ...query } })
}

export function listLimitServices(id: number): Promise<LimitService[]> {
  if (mockOn)
    return mocked([
      { name: 'compute', description: 'Compute' },
      { name: 'vcn', description: 'Virtual Cloud Network' },
      { name: 'block-storage', description: 'Block Volume' },
    ])
  return request(`/oci-configs/${id}/limits/services`)
}

// ---- 订阅 ----
export function listSubscriptions(id: number): Promise<SubscriptionSummary[]> {
  if (mockOn)
    return mocked(
      mockSubscriptions.map((d) => ({
        id: d.id,
        serviceName: d.serviceName,
        timeCreated: d.timeCreated,
        timeUpdated: d.timeUpdated,
      })),
    )
  return request(`/oci-configs/${id}/subscriptions`)
}

export function getSubscription(id: number, subscriptionId: string): Promise<SubscriptionDetail> {
  if (mockOn)
    return mocked(mockSubscriptions.find((d) => d.id === subscriptionId) ?? mockSubscriptions[0])
  return request(`/oci-configs/${id}/subscriptions/${subscriptionId}`)
}

// ---- 身份域 ----
/** 租户 ACTIVE 身份域列表;空数组表示无域老租户(隐藏选择器走经典路径) */
export function listIdentityDomains(id: number): Promise<IdentityDomain[]> {
  if (mockOn)
    return mocked([
      { id: 'ocid1.domain.default', displayName: 'Default', homeRegion: 'us-phoenix-1', type: 'DEFAULT', licenseType: 'free' },
      { id: 'ocid1.domain.idcs', displayName: 'OracleIdentityCloudService', homeRegion: 'us-phoenix-1', type: 'SECONDARY', licenseType: 'idcs-foundation' },
    ])
  return request(`/oci-configs/${id}/domains`)
}

// ---- 用户 ----
export function listUsers(id: number, domainId?: string): Promise<IamUser[]> {
  if (mockOn) return mocked(mockUsers)
  return request(`/oci-configs/${id}/users`, { query: { domainId } })
}

// 编辑表单预填充用;不在身份域的经典用户返回 inDomain: false
export function getUserDetail(id: number, userId: string, domainId?: string): Promise<IamUserDetail> {
  if (mockOn)
    return mocked(
      mockUserDetails[userId] ?? {
        inDomain: false,
        givenName: '',
        familyName: '',
        isDomainAdmin: false,
        inAdminGroup: false,
      },
    )
  return request(`/oci-configs/${id}/users/${userId}`, { query: { domainId } })
}

export interface CreateUserBody {
  name: string
  givenName: string
  familyName: string
  description?: string
  email?: string
  /** 同时勾选时后端先授身份域管理员，再加入管理员组 */
  grantDomainAdmin?: boolean
  addToAdminGroup?: boolean
}

export function createUser(id: number, body: CreateUserBody, domainId?: string): Promise<IamUser> {
  if (mockOn)
    return mocked({ ...mockUsers[2], id: 'ocid1.user..new', name: body.name, email: body.email ?? '' })
  return request(`/oci-configs/${id}/users`, { method: 'POST', body, query: { domainId } })
}

export interface UpdateUserBody {
  description?: string
  email?: string
  givenName?: string
  familyName?: string
  /** 三态：true 授予/加入，false 撤销/移出，缺省不动 */
  grantDomainAdmin?: boolean
  addToAdminGroup?: boolean
}

export function updateUser(id: number, userId: string, body: UpdateUserBody, domainId?: string): Promise<IamUser> {
  if (mockOn) {
    const u = mockUsers.find((x) => x.id === userId) ?? mockUsers[2]
    if (body.description !== undefined) u.description = body.description
    if (body.email !== undefined) u.email = body.email
    return mocked({ ...u })
  }
  return request(`/oci-configs/${id}/users/${userId}`, { method: 'PUT', body, query: { domainId } })
}

export function deleteUser(id: number, userId: string, domainId?: string): Promise<void> {
  if (mockOn) return mocked(undefined)
  return request(`/oci-configs/${id}/users/${userId}`, { method: 'DELETE', query: { domainId } })
}

export function resetUserPassword(id: number, userId: string, domainId?: string): Promise<{ password: string }> {
  if (mockOn) return mocked({ password: 'Xy9#kQ2m$Lp8' })
  return request(`/oci-configs/${id}/users/${userId}/reset-password`, { method: 'POST', query: { domainId } })
}

export function clearUserMfa(id: number, userId: string, domainId?: string): Promise<{ deletedTotpDevices: number }> {
  if (mockOn) return mocked({ deletedTotpDevices: 1 })
  return request(`/oci-configs/${id}/users/${userId}/mfa-devices`, { method: 'DELETE', query: { domainId } })
}

export function deleteUserApiKeys(
  id: number,
  userId: string,
  includeCurrent = false,
): Promise<{ deletedApiKeys: number }> {
  if (mockOn) return mocked({ deletedApiKeys: 1 })
  return request(`/oci-configs/${id}/users/${userId}/api-keys`, {
    method: 'DELETE',
    query: { includeCurrent },
  })
}

// ---- 审计日志 ----
/** 批式懒加载查询审计事件:cursor 空自当前时刻首查,
 *  非空从上次响应游标向更早续取一批(~100 条,服务端分窗回溯) */
export function listAuditEvents(
  id: number,
  opts: { region?: string; cursor?: string; limit?: number } = {},
): Promise<AuditEventsResult> {
  // mock:首批带游标,续查一批后到尽头,演示懒加载链路
  if (mockOn)
    return mocked(
      { items: mockAuditEvents, cursor: opts.cursor ? undefined : 'mock-cursor', exhausted: !!opts.cursor },
      300,
    )
  return request(`/oci-configs/${id}/audit-events`, { query: { ...opts } })
}

/** 取回单条审计事件的原始 JSON;404 表示缓存过期且重查未找回(前端降级展示精简字段) */
export function getAuditEventDetail(
  id: number,
  q: { eventId: string; eventTime: string; region?: string },
): Promise<{ raw: unknown }> {
  if (mockOn) return mocked({ raw: { eventId: q.eventId, mock: true, note: '演示原始事件' } }, 200)
  return request(`/oci-configs/${id}/audit-events/detail`, { query: q })
}

// ---- 域设置 ----
export function getNotificationRecipients(id: number, domainId?: string): Promise<NotificationRecipients> {
  if (mockOn) return mocked(mockRecipients)
  return request(`/oci-configs/${id}/notification-recipients`, { query: { domainId } })
}

export function updateNotificationRecipients(
  id: number,
  recipients: string[],
  domainId?: string,
): Promise<NotificationRecipients> {
  if (mockOn) return mocked({ recipients, testModeEnabled: recipients.length > 0 })
  return request(`/oci-configs/${id}/notification-recipients`, {
    method: 'PUT',
    body: { recipients },
    query: { domainId },
  })
}

export function listPasswordPolicies(id: number, domainId?: string): Promise<PasswordPolicy[]> {
  if (mockOn) return mocked(mockPolicies)
  return request(`/oci-configs/${id}/password-policies`, { query: { domainId } })
}

export function updatePasswordPolicy(
  id: number,
  policyId: string,
  body: { passwordExpiresAfter?: number; minLength?: number; numPasswordsInHistory?: number },
  domainId?: string,
): Promise<PasswordPolicy> {
  if (mockOn) return mocked({ ...mockPolicies[0], ...body })
  return request(`/oci-configs/${id}/password-policies/${policyId}`, { method: 'PUT', body, query: { domainId } })
}

// ---- 身份设置 ----
export function getIdentitySetting(id: number, domainId?: string): Promise<IdentitySetting> {
  if (mockOn) return mocked({ ...mockIdentitySetting })
  return request(`/oci-configs/${id}/identity-settings`, { query: { domainId } })
}

export function updateIdentitySetting(
  id: number,
  primaryEmailRequired: boolean,
  domainId?: string,
): Promise<IdentitySetting> {
  if (mockOn) {
    mockIdentitySetting.primaryEmailRequired = primaryEmailRequired
    return mocked({ ...mockIdentitySetting })
  }
  return request(`/oci-configs/${id}/identity-settings`, {
    method: 'PUT',
    body: { primaryEmailRequired },
    query: { domainId },
  })
}

export async function downloadSamlMetadata(id: number, domainId?: string): Promise<void> {
  if (mockOn) {
    const blob = new Blob(['<mock-saml-metadata/>'], { type: 'application/xml' })
    triggerDownload(blob, 'oci-domain-saml-metadata.xml')
    return
  }
  const { useAuthStore } = await import('@/stores/auth')
  const auth = useAuthStore()
  const qs = domainId ? `?domainId=${encodeURIComponent(domainId)}` : ''
  const resp = await fetch(`/api/v1/oci-configs/${id}/saml-metadata${qs}`, {
    headers: auth.token ? { Authorization: `Bearer ${auth.token}` } : {},
  })
  if (!resp.ok) throw new Error(`下载失败（${resp.status}）`)
  triggerDownload(await resp.blob(), 'oci-domain-saml-metadata.xml')
}

function triggerDownload(blob: Blob, filename: string) {
  const url = URL.createObjectURL(blob)
  const a = document.createElement('a')
  a.href = url
  a.download = filename
  a.click()
  URL.revokeObjectURL(url)
}

// ---- Federation ----
export interface CreateIdpBody {
  name: string
  metadata: string
  description?: string
  /** logo：data URI 或外链 URL */
  iconUrl?: string
  nameIdFormat?: string
  /** 非空表示按断言属性映射；空则按 SAML NameID 映射 */
  assertionAttribute?: string
  userStoreAttribute?: string
  jitEnabled?: boolean
  jitCreate?: boolean
  jitUpdate?: boolean
  jitAssignAdminGroup?: boolean
  jitMapEmail?: boolean
}

export function createIdp(id: number, body: CreateIdpBody, domainId?: string): Promise<IdentityProvider> {
  if (mockOn) {
    const created = {
      ...mockIdps[1],
      id: `idp-${mockIdps.length + 1}`,
      name: body.name,
      enabled: false,
    }
    mockIdps.push(created)
    return mocked(created, 900)
  }
  return request(`/oci-configs/${id}/identity-providers`, { method: 'POST', body, query: { domainId } })
}

export function listIdps(id: number, domainId?: string): Promise<IdentityProvider[]> {
  if (mockOn) return mocked(mockIdps)
  return request(`/oci-configs/${id}/identity-providers`, { query: { domainId } })
}

export function activateIdp(id: number, idpId: string, enabled: boolean, domainId?: string): Promise<IdentityProvider> {
  if (mockOn) return mocked({ ...mockIdps[0], enabled })
  return request(`/oci-configs/${id}/identity-providers/${idpId}/activate`, {
    method: 'POST',
    body: { enabled },
    query: { domainId },
  })
}

export function deleteIdp(id: number, idpId: string, domainId?: string): Promise<void> {
  if (mockOn) return mocked(undefined)
  return request(`/oci-configs/${id}/identity-providers/${idpId}`, { method: 'DELETE', query: { domainId } })
}

export function listSignOnRules(id: number, domainId?: string): Promise<SignOnRule[]> {
  if (mockOn) return mocked(mockSignOnRules)
  return request(`/oci-configs/${id}/sign-on-rules`, { query: { domainId } })
}

export function createSignOnExemption(id: number, identityProviderId: string, domainId?: string): Promise<SignOnRule> {
  if (mockOn) return mocked(mockSignOnRules[0])
  return request(`/oci-configs/${id}/sign-on-exemptions`, {
    method: 'POST',
    body: { identityProviderId },
    query: { domainId },
  })
}

export function deleteSignOnExemption(id: number, ruleId: string, domainId?: string): Promise<void> {
  if (mockOn) return mocked(undefined)
  return request(`/oci-configs/${id}/sign-on-exemptions/${ruleId}`, { method: 'DELETE', query: { domainId } })
}