export function normalizeCanvasAgentClientIntentText(value: unknown) {
  return String(value || "")
    .replace(/\u200b/g, " ")
    .replace(/\s+/g, " ")
    .trim()
    .toLowerCase();
}

const CANVAS_AGENT_IMAGE_GENERATION_OR_EDIT_REGEX =
  /(生成|生图|出图|画一张|来一张|做一张|做图|做视频|生成视频|视频生成|换背景|背景换|白底|去背景|删除背景|抠图|高清|增强|超清|超分|修图|重绘|扩图|扩展画幅|局部重绘|风格化|海报|主图|logo)/i;

const CANVAS_AGENT_VIEW_CONTROL_REGEX =
  /(看全局|看全部|缩小看|适配全部|适配画布|聚焦选中|聚焦结果|聚焦刚生成|对比.{0,8}(原图|新图|结果|版本)|(原图|新图|结果|版本).{0,8}对比|focus selection|focus latest|fit all|zoom in|zoom out|pan to)|(画布|视角|镜头|viewport|canvas).{0,12}(放大|缩小|缩放|聚焦|定位|居中|看全局|看全部|移动|平移|拖动|zoom|fit|focus|pan)|(放大|缩小|缩放|聚焦|定位|居中|zoom|fit|focus).{0,12}(画布|视角|镜头|全局|全部|选中|选择|刚生成|结果|节点|对象|图片|图)/i;

const CANVAS_AGENT_SLOT_MANAGEMENT_REGEX =
  /(新建|创建|添加|插入|放置|加一个|建一个).{0,10}(图片|视频|ui|画面|空)?(槽位|slot|空框|占位框|框)|(槽位|slot|空框|占位框).{0,10}(新建|创建|添加|插入|放置)/i;

const CANVAS_AGENT_SLOT_FILL_CONTEXT_REGEX =
  /(填充|生成|生图|出图|画一张|来一张|做一张|做图|做视频|视频生成|生成视频|放到|放进|放入|在这里|这个空框|这个槽位|选中槽位|槽位|slot|空框|占位框)/i;

const CANVAS_AGENT_STRUCTURAL_OPERATION_REGEX =
  /(删除|移除|移动|挪动|排列|对齐|重命名|改名|连线|连接|添加批注|批注|备注|标注|添加文字|文字节点|更新文字|修改文字).{0,14}(画布|节点|对象|元素|图片|图|文本|便签|选中|这些|它们|这个)|(画布|节点|对象|元素|图片|图|文本|便签|选中|这些|它们|这个).{0,14}(删除|移除|移动|挪动|排列|对齐|重命名|改名|连线|连接|添加批注|批注|备注|标注|添加文字|文字节点|更新文字|修改文字)/i;

export function hasCanvasAgentNonGenerativeControlIntent(value: unknown) {
  const text = normalizeCanvasAgentClientIntentText(value);
  if (!text) return false;
  if (CANVAS_AGENT_VIEW_CONTROL_REGEX.test(text)) return true;
  if (CANVAS_AGENT_IMAGE_GENERATION_OR_EDIT_REGEX.test(text)) return false;
  return (
    CANVAS_AGENT_SLOT_MANAGEMENT_REGEX.test(text) ||
    CANVAS_AGENT_STRUCTURAL_OPERATION_REGEX.test(text)
  );
}

export function hasCanvasAgentSlotFillContextIntent(value: unknown) {
  const text = normalizeCanvasAgentClientIntentText(value);
  if (!text) return false;
  return CANVAS_AGENT_SLOT_FILL_CONTEXT_REGEX.test(text);
}

export function shouldBypassCanvasImagePointsPrecheckForAgentControl(params: {
  text: unknown;
  activeComposerMode?: string | null;
  attachmentCount?: number;
  hasSkillTag?: boolean;
  hasWorkflowContext?: boolean;
  isDetailGenerationMode?: boolean;
  agentEnabled?: boolean;
}) {
  if (params.activeComposerMode === "agent") return true;
  if (params.agentEnabled === false) return false;
  if ((params.attachmentCount || 0) > 0) return false;
  if (params.hasSkillTag || params.hasWorkflowContext || params.isDetailGenerationMode) {
    return false;
  }
  return hasCanvasAgentNonGenerativeControlIntent(params.text);
}

export function shouldPreserveCanvasAgentSlotOnlyContext(params: {
  text: unknown;
  activeComposerMode?: string | null;
  selectedAgentSlotCount?: number;
  attachmentCount?: number;
  hasSkillTag?: boolean;
  hasWorkflowContext?: boolean;
  isDetailGenerationMode?: boolean;
  agentEnabled?: boolean;
}) {
  if ((params.selectedAgentSlotCount || 0) <= 0) return false;
  if (params.activeComposerMode === "agent") return true;
  if (params.agentEnabled === false) return false;
  if ((params.attachmentCount || 0) > 0) return false;
  if (params.hasSkillTag || params.hasWorkflowContext || params.isDetailGenerationMode) {
    return false;
  }
  return hasCanvasAgentSlotFillContextIntent(params.text);
}