'use strict';

const ROLE_CAPABILITIES = Object.freeze({
  headquarters_admin: ['*'],
  regional_manager: ['read', 'manage_plans', 'execute_items', 'manage_findings', 'manage_tasks', 'manage_quality'],
  store_manager: ['read', 'manage_plans', 'execute_items', 'manage_findings', 'manage_tasks'],
  executor: ['read', 'manage_plans', 'execute_items', 'manage_findings'],
  auditor: ['read']
});

function hasCapability(binding, capability) {
  const capabilities = ROLE_CAPABILITIES[binding?.role] || [];
  return capabilities.includes('*') || capabilities.includes(capability);
}

function resolveTargetStore(store, accountKey, input = {}) {
  if (input.storeId) return String(input.storeId);
  if (input.roomId) return String(store.getGroup(accountKey, input.roomId)?.store_id || '');
  if (input.itemId) return String(store.getPlanItemWithContext(accountKey, input.itemId)?.store_id || '');
  if (input.findingId) {
    const finding = store.db.prepare('SELECT room_id FROM group_ops_findings WHERE id=? AND account_key=?').get(input.findingId, accountKey);
    return String(finding?.room_id ? store.getGroup(accountKey, finding.room_id)?.store_id || '' : '');
  }
  if (input.taskId) return String(store.getTask(accountKey, input.taskId)?.room_id ? store.getGroup(accountKey, store.getTask(accountKey, input.taskId).room_id)?.store_id || '' : '');
  return '';
}

function authorizeGroupOps(store, accountKey, principal, capability, input = {}) {
  const bindings = store.listRoleBindings(accountKey);
  if (!bindings.length) return { allowed: true, mode: 'bootstrap', warning: '当前账号尚未配置角色绑定，沿用兼容模式。' };
  const binding = store.getRoleBinding(accountKey, principal);
  if (!binding) return { allowed: false, reason: '当前身份未被授予社群运营角色' };
  if (!hasCapability(binding, capability)) return { allowed: false, reason: `角色 ${binding.role} 没有 ${capability} 权限` };
  if (binding.role === 'headquarters_admin' || capability === 'read' && binding.role === 'auditor') return { allowed: true, binding };
  const targetStore = resolveTargetStore(store, accountKey, input);
  if (!targetStore) return { allowed: capability === 'read', binding, reason: capability === 'read' ? '' : '该操作缺少可校验的门店范围' };
  if (!binding.storeScope.includes(targetStore)) return { allowed: false, reason: `无权操作门店 ${targetStore}` };
  return { allowed: true, binding, targetStore };
}

module.exports = { ROLE_CAPABILITIES, authorizeGroupOps };