export const ROLE_IDS = {
  systemAdmin: 'TAM0000001',
  headOfficeManager: 'TAM0000006',
  branchManager: 'TAM0000007',
  forecaster: 'TAM0000008',
} as const

export const ROLE_PRIORITY = [
  ROLE_IDS.systemAdmin,
  ROLE_IDS.headOfficeManager,
  ROLE_IDS.branchManager,
  ROLE_IDS.forecaster,
] as const

export const ROLE_NAMES: Record<string, string> = {
  [ROLE_IDS.systemAdmin]: '管理员',
  [ROLE_IDS.headOfficeManager]: '总行资金管理员',
  [ROLE_IDS.branchManager]: '分行/管理部资金管理员',
  [ROLE_IDS.forecaster]: '资金预报员',
}

export const PERMISSIONS = {
  dashboardView: 'dashboard:view',
  approvalCenterView: 'approval-center:view',
  foreignPositionApprovalView: 'foreign-position-approval:view',
  fundsCockpitView: 'funds-cockpit:view',
  announcementView: 'announcement:view',
  announcementManage: 'announcement:manage',
} as const

export type PermissionCode = (typeof PERMISSIONS)[keyof typeof PERMISSIONS]

/** 登录接口角色与移动端功能权限的对应关系。 */
const ROLE_PERMISSION_MAP: Record<string, readonly PermissionCode[]> = {
  [ROLE_IDS.systemAdmin]: [
    PERMISSIONS.dashboardView,
    PERMISSIONS.approvalCenterView,
    PERMISSIONS.foreignPositionApprovalView,
    PERMISSIONS.fundsCockpitView,
    PERMISSIONS.announcementView,
    PERMISSIONS.announcementManage,
  ],
  [ROLE_IDS.headOfficeManager]: [
    PERMISSIONS.dashboardView,
    PERMISSIONS.approvalCenterView,
    PERMISSIONS.foreignPositionApprovalView,
    PERMISSIONS.fundsCockpitView,
    PERMISSIONS.announcementView,
    PERMISSIONS.announcementManage,
  ],
  [ROLE_IDS.branchManager]: [
    PERMISSIONS.dashboardView,
    PERMISSIONS.foreignPositionApprovalView,
    PERMISSIONS.announcementView,
  ],
  [ROLE_IDS.forecaster]: [
    PERMISSIONS.dashboardView,
    PERMISSIONS.announcementView,
  ],
}

/** 多角色用户按 001 > 006 > 007 > 008 选择默认角色。 */
export function resolvePrimaryRoleId(roleIds: readonly string[]) {
  return ROLE_PRIORITY.find((roleId) => roleIds.includes(roleId)) || roleIds[0] || ''
}

export function resolvePermissions(roleIds: readonly string[]) {
  const primaryRoleId = resolvePrimaryRoleId(roleIds)
  return [...(ROLE_PERMISSION_MAP[primaryRoleId] || [])]
}