// K8s ClusterRole Schema - 由 ConfTemplate 生成
// 生成时间: 自动生成

export const k8sClusterRoleSchema = {
  id: 'k8s-clusterrole',
  name: 'K8s ClusterRole',
  icon: 'ShieldCheck',
  category: '云原生',
  description: 'Kubernetes 集群级 RBAC 角色',
  format: 'yaml',
  fileName: 'clusterrole.yaml',
  groups: [
    {
      title: '基础信息',
      fields: [
        {
          key: 'name',
          label: 'ClusterRole 名称',
          type: 'text',
          placeholder: 'my-cluster-role',
          default: 'my-cluster-role',
          required: true,
          tip: '将用作 ClusterRole 的 metadata.name',
        },
      ],
    },
    {
      title: '权限规则',
      fields: [
        {
          key: 'resources',
          label: '资源类型',
          type: 'select',
          multiple: true,
          options: [
            { label: 'Pods', value: 'pods' },
            { label: 'Services', value: 'services' },
            { label: 'ConfigMaps', value: 'configmaps' },
            { label: 'Deployments', value: 'deployments' },
            { label: 'Secrets', value: 'secrets' },
            { label: 'Nodes', value: 'nodes' },
            { label: 'Namespaces', value: 'namespaces' },
            { label: 'All (*)', value: '*' },
          ],
          default: ['pods'],
          tip: '可多选，选择要授权的资源类型',
        },
        {
          key: 'verbs',
          label: '操作动词',
          type: 'select',
          multiple: true,
          options: [
            { label: 'Get (读取)', value: 'get' },
            { label: 'List (列表)', value: 'list' },
            { label: 'Watch (监听)', value: 'watch' },
            { label: 'Create (创建)', value: 'create' },
            { label: 'Update (更新)', value: 'update' },
            { label: 'Delete (删除)', value: 'delete' },
            { label: 'Patch (补丁)', value: 'patch' },
            { label: 'All (*)', value: '*' },
          ],
          default: ['get', 'list', 'watch'],
          tip: '可多选，选择允许的操作',
        },
        {
          key: 'apiGroups',
          label: 'API 组',
          type: 'text',
          placeholder: '"" (核心组留空)',
          default: '',
          tip: 'API 组，核心资源(如 pods, services)留空',
        },
      ],
    },
  ],
}




function yamlScalar(v) {
  if (v === null || v === undefined) return ''
  if (typeof v === 'number' || typeof v === 'boolean') return String(v)
  const s = String(v)
  if (/[:#\n"'`]|^[\s\-]|[\s]$/.test(s) || /^(true|false|null|yes|no|on|off|~)$/i.test(s)) {
    return JSON.stringify(s)
  }
  return s
}

function isEmptyMapping(o) {
  if (!o || typeof o !== 'object' || Array.isArray(o)) return false
  return Object.values(o).every(v => v === null || v === undefined || v === '' || (typeof v === 'object' && isEmptyMapping(v)))
}

function toYaml(obj, baseIndent = '') {
  const lines = []
  for (const [key, value] of Object.entries(obj)) {
    if (value === null || value === undefined || value === '') continue
    if (Array.isArray(value)) {
      const items = value.filter(v => v !== null && v !== undefined && v !== '')
      if (!items.length) continue
      lines.push(`${baseIndent}${key}:`)
      for (const item of items) {
        if (item && typeof item === 'object' && !Array.isArray(item)) {
          if (isEmptyMapping(item)) continue
          const entries = Object.entries(item).filter(([, v]) => v !== null && v !== undefined && v !== '')
          if (!entries.length) continue
          const childIndent = baseIndent + '  '
          const subAllIndent = childIndent + '  '
          const subObj = {}
          for (const [k, v] of entries) subObj[k] = v
          const subRendered = toYaml(subObj, subAllIndent)
          const subLines = subRendered.split('\n')
          if (subLines[0].startsWith(subAllIndent)) {
            subLines[0] = childIndent + '- ' + subLines[0].slice(subAllIndent.length)
          } else {
            subLines[0] = childIndent + '- ' + subLines[0].trimStart()
          }
          lines.push(...subLines)
        } else {
          lines.push(`${baseIndent}  - ${yamlScalar(item)}`)
        }
      }
    } else if (typeof value === 'object') {
      if (isEmptyMapping(value)) {
        lines.push(`${baseIndent}${key}: {}`)
        continue
      }
      lines.push(`${baseIndent}${key}:`)
      const childIndent = baseIndent + '  '
      lines.push(toYaml(value, childIndent))
    } else {
      lines.push(`${baseIndent}${key}: ${yamlScalar(value)}`)
    }
  }
  return lines.join('\n')
}

export function generateK8sClusterRoleYaml(config) {
  const resources = Array.isArray(config.resources) ? config.resources : [config.resources || 'pods']
  const verbs = Array.isArray(config.verbs) ? config.verbs : [config.verbs || 'get']
  const apiGroups = config.apiGroups !== undefined && config.apiGroups !== ''
    ? config.apiGroups.split(',').map(g => g.trim())
    : ['']

  const rule = {
    apiGroups,
    resources,
    verbs,
  }

  const clusterRole = {
    apiVersion: 'rbac.authorization.k8s.io/v1',
    kind: 'ClusterRole',
    metadata: {
      name: config.name,
    },
    rules: [rule],
  }

  const header = `# K8s ClusterRole - 由 ConfTemplate 生成
# 生成时间: ${new Date().toLocaleString('zh-CN')}
# 部署命令: kubectl apply -f ${config.fileName || 'clusterrole.yaml'}
`

  return header + '\n' + toYaml(clusterRole)
}