export type PrincipleCategoryId = 'people' | 'environment' | 'things'

export interface Principle {
  id: string
  categoryId: PrincipleCategoryId
  order: number
  name: string
  description: string
}

export interface PrincipleGroup {
  id: PrincipleCategoryId
  label: string
  order: number
  items: Principle[]
}

export const principleGroups: PrincipleGroup[] = [
  {
    id: 'people',
    label: '人',
    order: 1,
    items: [
      {
        id: 'people-stewardship',
        categoryId: 'people',
        order: 1,
        name: '管家式管理',
        description: '勤勉、尊重和关心他人',
      },
      {
        id: 'people-stakeholders',
        categoryId: 'people',
        order: 2,
        name: '干系人',
        description: '促进干系人有效参与',
      },
      {
        id: 'people-leadership',
        categoryId: 'people',
        order: 3,
        name: '领导力',
        description: '展现领导力行为',
      },
      {
        id: 'people-team',
        categoryId: 'people',
        order: 4,
        name: '团队',
        description: '营造协作的项目团队环境',
      },
    ],
  },
  {
    id: 'environment',
    label: '环境',
    order: 2,
    items: [
      {
        id: 'env-complexity',
        categoryId: 'environment',
        order: 1,
        name: '复杂性',
        description: '驾驭复杂性',
      },
      {
        id: 'env-change',
        categoryId: 'environment',
        order: 2,
        name: '变革',
        description: '为实现目标而驱动变革',
      },
      {
        id: 'env-value',
        categoryId: 'environment',
        order: 3,
        name: '价值',
        description: '聚焦于价值',
      },
      {
        id: 'env-adaptability',
        categoryId: 'environment',
        order: 4,
        name: '适应性和韧性',
        description: '拥抱适应性和韧性',
      },
    ],
  },
  {
    id: 'things',
    label: '事',
    order: 3,
    items: [
      {
        id: 'things-tailoring',
        categoryId: 'things',
        order: 1,
        name: '裁剪',
        description: '根据环境进行裁剪',
      },
      {
        id: 'things-risk',
        categoryId: 'things',
        order: 2,
        name: '风险',
        description: '优化风险应对',
      },
      {
        id: 'things-quality',
        categoryId: 'things',
        order: 3,
        name: '质量',
        description: '将质量融入到过程和成果中',
      },
      {
        id: 'things-system',
        categoryId: 'things',
        order: 4,
        name: '系统交互',
        description: '识别、评估和响应系统交互',
      },
    ],
  },
]

/** 所有原则的扁平数组，顺序为：人×4 → 环境×4 → 事×4 */
export const principles: Principle[] = principleGroups.flatMap((g) => g.items)

/** 原则 id → Principle 快速查找 */
export const principleMap = new Map<string, Principle>(
  principles.map((p) => [p.id, p])
)

/** 从当前原则 id 出发，找下一个未答对的原则（环形搜索） */
export function getNextUnanswered(
  currentId: string,
  answered: Map<string, boolean>
): Principle | null {
  const startIdx = principles.findIndex((p) => p.id === currentId)
  for (let offset = 1; offset <= principles.length; offset++) {
    const candidate = principles[(startIdx + offset) % principles.length]
    if (!answered.get(candidate.id)) return candidate
  }
  return null
}