import type {
  RpgCreationEditorTarget,
  RpgCreationEntityEditorModalProps,
} from './RpgCreationEntityEditorModalImpl';
import type {
  CustomWorldLandmark,
  CustomWorldNpc,
  CustomWorldPlayableNpc,
  CustomWorldProfile,
} from '../../types';

/**
 * 工作包 C 第一轮先把编辑器目标分发需要的 profile 变更收口到 mapper。
 * 后续继续拆 section 表单时，提交 patch 和字段清洗会逐步下沉到这里。
 */

function slugify(value: string) {
  const normalized = value
    .trim()
    .toLowerCase()
    .replace(/[^a-z0-9\u4e00-\u9fa5]+/g, '-')
    .replace(/^-+|-+$/g, '');

  return normalized || 'entry';
}

function createEntryId(prefix: string, label: string, seed: number) {
  return `${prefix}-${slugify(label || `${prefix}-${seed}`)}-${seed.toString(36)}`;
}

const BACKSTORY_UNLOCK_AFFINITY_EASED = 6;
const BACKSTORY_UNLOCK_AFFINITY_FRIENDLY = 12;
const BACKSTORY_UNLOCK_AFFINITY_TRUSTED = 18;
const BACKSTORY_UNLOCK_AFFINITY_CLOSE = 24;

export function createPlayableNpcDraft(
  profile: CustomWorldProfile,
): CustomWorldPlayableNpc {
  const seed = Date.now() + profile.playableNpcs.length;

  return {
    id: createEntryId(
      'playable-npc',
      `角色-${profile.playableNpcs.length + 1}`,
      seed,
    ),
    name: `自定义角色${profile.playableNpcs.length + 1}`,
    title: '自定义身份',
    role: '世界中的行动者',
    description: '',
    backstory: '',
    personality: '',
    motivation: '',
    combatStyle: '',
    initialAffinity: 18,
    relationshipHooks: ['首次接触', '合作空间'],
    relations: [],
    tags: ['自定义'],
    backstoryReveal: {
      publicSummary: '',
      chapters: [
        {
          id: 'surface',
          title: '表层来意',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_EASED,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
        {
          id: 'scar',
          title: '旧事裂痕',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_FRIENDLY,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
        {
          id: 'hidden',
          title: '隐藏执念',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_TRUSTED,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
        {
          id: 'final',
          title: '最终底牌',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_CLOSE,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
      ],
    },
    skills: [
      { id: 'skill-1', name: '基础起手', summary: '', style: '起手压制' },
      { id: 'skill-2', name: '常用变招', summary: '', style: '机动周旋' },
      { id: 'skill-3', name: '压箱底牌', summary: '', style: '爆发终结' },
    ],
    initialItems: [
      {
        id: 'item-1',
        name: '随身武具',
        category: '武器',
        quantity: 1,
        rarity: 'rare',
        description: '',
        tags: ['自定义'],
      },
      {
        id: 'item-2',
        name: '补给包',
        category: '消耗品',
        quantity: 2,
        rarity: 'uncommon',
        description: '',
        tags: ['自定义'],
      },
      {
        id: 'item-3',
        name: '私人物件',
        category: '专属物品',
        quantity: 1,
        rarity: 'rare',
        description: '',
        tags: ['自定义'],
      },
    ],
    templateCharacterId: profile.playableNpcs[0]?.templateCharacterId,
  };
}

export function createStoryNpcDraft(
  profile: Pick<CustomWorldProfile, 'storyNpcs'>,
): CustomWorldNpc {
  const seed = Date.now() + profile.storyNpcs.length;

  return {
    id: createEntryId(
      'story-npc',
      `场景角色-${profile.storyNpcs.length + 1}`,
      seed,
    ),
    name: `自定义场景角色${profile.storyNpcs.length + 1}`,
    title: '自定义头衔',
    role: '自定义身份',
    description: '',
    backstory: '',
    personality: '',
    motivation: '',
    combatStyle: '',
    initialAffinity: 6,
    relationshipHooks: ['合作', '互动'],
    relations: [],
    tags: ['自定义'],
    backstoryReveal: {
      publicSummary: '',
      chapters: [
        {
          id: 'surface',
          title: '表层来意',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_EASED,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
        {
          id: 'scar',
          title: '旧事裂痕',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_FRIENDLY,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
        {
          id: 'hidden',
          title: '隐藏执念',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_TRUSTED,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
        {
          id: 'final',
          title: '最终底牌',
          affinityRequired: BACKSTORY_UNLOCK_AFFINITY_CLOSE,
          teaser: '',
          content: '',
          contextSnippet: '',
        },
      ],
    },
    skills: [
      { id: 'skill-1', name: '基础起手', summary: '', style: '起手压制' },
      { id: 'skill-2', name: '常用变招', summary: '', style: '机动周旋' },
      { id: 'skill-3', name: '压箱底牌', summary: '', style: '爆发终结' },
    ],
    initialItems: [
      {
        id: 'item-1',
        name: '随身武具',
        category: '武器',
        quantity: 1,
        rarity: 'rare',
        description: '',
        tags: ['自定义'],
      },
      {
        id: 'item-2',
        name: '补给包',
        category: '消耗品',
        quantity: 2,
        rarity: 'uncommon',
        description: '',
        tags: ['自定义'],
      },
      {
        id: 'item-3',
        name: '私人物件',
        category: '专属物品',
        quantity: 1,
        rarity: 'rare',
        description: '',
        tags: ['自定义'],
      },
    ],
  } satisfies CustomWorldNpc;
}

export function createLandmarkDraft(
  profile: CustomWorldProfile,
): CustomWorldLandmark {
  const seed = Date.now() + profile.landmarks.length;
  const previousLandmark = profile.landmarks[profile.landmarks.length - 1];

  return {
    id: createEntryId(
      'landmark',
      `scene-${profile.landmarks.length + 1}`,
      seed,
    ),
    name: `自定义场景${profile.landmarks.length + 1}`,
    description: '',
    dangerLevel: '中',
    imageSrc: undefined,
    sceneNpcIds: profile.storyNpcs.slice(0, 3).map((npc) => npc.id),
    connections: previousLandmark
      ? [
          {
            targetLandmarkId: previousLandmark.id,
            relativePosition: 'south',
            summary: `南侧可回到${previousLandmark.name}`,
          },
        ]
      : [],
  };
}

export function buildEditorTargetRendererParams(
  props: RpgCreationEntityEditorModalProps,
) {
  const { profile, target, onClose, onProfileChange } = props;

  return {
    onClose,
    onProfileChange,
    profile,
    target,
  };
}

export function resolveEditablePlayableNpc(
  profile: CustomWorldProfile,
  target: Extract<RpgCreationEditorTarget, { kind: 'playable' }>,
) {
  if (target.mode === 'create') {
    return createPlayableNpcDraft(profile);
  }

  return profile.playableNpcs.find((item) => item.id === target.id) ?? null;
}

export function resolveEditableStoryNpc(
  profile: CustomWorldProfile,
  target: Extract<RpgCreationEditorTarget, { kind: 'story' }>,
) {
  if (target.mode === 'create') {
    return createStoryNpcDraft(profile);
  }

  return profile.storyNpcs.find((item) => item.id === target.id) ?? null;
}

export function resolveEditableLandmark(
  profile: CustomWorldProfile,
  target: Extract<RpgCreationEditorTarget, { kind: 'landmark' }>,
) {
  if (target.mode === 'create') {
    return createLandmarkDraft(profile);
  }

  return profile.landmarks.find((item) => item.id === target.id) ?? null;
}