'use strict';

const crypto = require('node:crypto');

function toolSignature(tool) {
  return crypto.createHash('sha256').update(JSON.stringify(tool)).digest('hex');
}

function inlineTool(tool) {
  const kind = tool?.kind || tool?.meta?.kind;
  const name = String(tool?.name || '');
  const target = String(tool?.input?.tool || tool?.input?.name || tool?.meta?.subtitle || '');
  return ['todo_list', 'collab_agent_tool_call', 'subAgentActivity'].includes(kind)
    || ['AskUserQuestion', 'subAgentActivity'].includes(name)
    || /(?:^|[./])ccweb_display_image$/.test(target);
}

// 折叠工具只传显示摘要；原始输入、输出仍由详情接口完整读取。
function summarizeTools(tools, reference) {
  return (Array.isArray(tools) ? tools : []).map((tool, index) => {
    if (!tool || typeof tool !== 'object' || inlineTool(tool)) return tool;
    const input = {};
    for (const key of ['command', 'path', 'file_path', 'tool', 'name', 'kind']) {
      if (typeof tool.input?.[key] === 'string') input[key] = tool.input[key].slice(0, 240);
    }
    const meta = {};
    for (const key of ['title', 'subtitle', 'kind', 'exitCode', 'status']) {
      const value = tool.meta?.[key];
      if (typeof value === 'string') meta[key] = value.slice(0, 240);
      else if (typeof value === 'number' || typeof value === 'boolean') meta[key] = value;
    }
    return { id: tool.id, name: tool.name, kind: tool.kind, done: tool.done, input, meta,
      detailRef: { ...reference, index, toolId: tool.id || null,
        ...(reference.scope ? {} : { signature: toolSignature(tool) }) } };
  });
}

module.exports = { summarizeTools, toolSignature };