import type { ToolInfo } from "@earendil-works/pi-coding-agent";

import {
  CATALOG_VERSION,
  applyCatalogOverrides,
  createFallbackCatalog,
  type CatalogConstraints,
  type GroupCard,
  type ToolCard,
  type ToolCatalog,
} from "./catalog.ts";

interface BundleGroupDefinition {
  id: string;
  title: string;
  summary: string;
  useWhen: string[];
  avoidWhen: string[];
  keywords: string[];
  tools: string[];
}

/** Curated groups for every non-core tool exposed by the my-pi bundle. */
export const BUNDLE_GROUP_DEFINITIONS: BundleGroupDefinition[] = [
  {
    id: "filesystem-navigation",
    title: "Filesystem navigation",
    summary: "Inspect directory layouts and run bounded multi-pattern literal searches.",
    useWhen: ["You need directory entries or several literal searches after narrowing a path"],
    avoidWhen: ["Code relationships or types are the real question"],
    keywords: ["files", "directory", "list", "multi grep", "目录", "文件", "多模式搜索"],
    tools: ["ls", "multi_grep"],
  },
  {
    id: "ssh-connection",
    title: "SSH connection",
    summary: "Connect sequentially to an explicitly imported SSH host through the reviewed agent tool flow.",
    useWhen: ["The user names a remote server as part of a concrete task and no matching SSH2 connection is active; call ssh_connect separately and wait for success before dependent remote tools"],
    avoidWhen: ["The task is local, the server was not explicitly named, or the host has not been imported"],
    keywords: ["ssh", "connect", "server", "host", "remote", "连接服务器", "远程主机", "SSH"],
    tools: ["ssh_connect"],
  },
  {
    id: "ssh-remote-files",
    title: "SSH remote files",
    summary: "Read, write, and edit files in the currently connected remote SSH workspace.",
    useWhen: ["You need explicit file operations on an active SSH target rather than the local workspace"],
    avoidWhen: ["A remote shell command is required, or the files are local"],
    keywords: ["ssh", "remote", "read", "write", "edit", "远程", "文件", "SSH"],
    tools: ["ssh_read", "ssh_write", "ssh_edit"],
  },
  {
    id: "ssh-remote-search",
    title: "SSH remote search",
    summary: "Run bounded adaptive filename and content searches on the active SSH target.",
    useWhen: ["You need to locate remote files or literals before reading or operating on them"],
    avoidWhen: ["The search belongs to the local workspace, or a known remote path can be read directly"],
    keywords: ["ssh", "remote", "find", "grep", "search", "远程搜索", "文件查找", "SSH"],
    tools: ["ssh_find", "ssh_grep"],
  },
  {
    id: "ssh-remote-shell",
    title: "SSH remote workspace shell",
    summary: "Change the active remote cwd as a separate reviewed step, or run a reviewed shell command in that workspace.",
    useWhen: ["You need to change the active remote workspace or run builds, tests, Git, or other shell operations there; call ssh_cd separately and wait for success before dependent remote calls"],
    avoidWhen: ["Structured remote file tools are sufficient, or the operation should run locally"],
    keywords: ["ssh", "remote", "bash", "cd", "cwd", "workspace", "build", "test", "git", "远程命令", "工作目录", "SSH"],
    tools: ["ssh_cd", "ssh_bash"],
  },
  {
    id: "code-intelligence",
    title: "Code intelligence",
    summary: "Explore code relationships and query language-server definitions, references, types, symbols, and diagnostics.",
    useWhen: ["Understanding architecture, call paths, symbol identity, types, references, or compiler diagnostics"],
    avoidWhen: ["Only an exact literal text match is required"],
    keywords: ["codegraph", "lsp", "definition", "references", "diagnostics", "代码结构", "定义", "引用", "诊断"],
    tools: ["codegraph_explore", "lsp_definition", "lsp_references", "lsp_hover", "lsp_symbols", "lsp_diagnostics"],
  },
  {
    id: "web-search",
    title: "Web search and fetch",
    summary: "Search the web for current or citable information and read selected pages as clean markdown.",
    useWhen: ["Current events, external facts, documentation, papers, or page content are needed"],
    avoidWhen: ["The answer is already in the workspace or local code tools suffice"],
    keywords: ["web", "search", "fetch", "news", "docs", "网页", "搜索", "新闻", "文档"],
    tools: ["web_search", "web_fetch"],
  },
  {
    id: "context-execution",
    title: "Context-isolated execution",
    summary: "Run commands or analyze large files in a sandbox while returning only compact derived output.",
    useWhen: ["Logs, tests, builds, generated data, commands, or workspace files may produce large output"],
    avoidWhen: ["Exact source lines are needed for an anchored edit"],
    keywords: ["execute", "large file", "logs", "tests", "build", "大文件", "日志", "测试", "构建"],
    tools: ["ctx_execute", "ctx_execute_file", "ctx_batch_execute"],
  },
  {
    id: "context-knowledge",
    title: "Context knowledge base",
    summary: "Index local or web documentation and retrieve focused passages from the persistent context-mode knowledge base.",
    useWhen: ["Documentation or session knowledge should be stored and queried without rereading raw content"],
    avoidWhen: ["A one-shot small source can be read directly"],
    keywords: ["index", "search", "knowledge base", "fetch docs", "索引", "知识库", "文档检索"],
    tools: ["ctx_index", "ctx_search", "ctx_fetch_and_index"],
  },
  {
    id: "context-observability",
    title: "Context observability",
    summary: "Inspect context-mode health, savings statistics, and the hosted Insight dashboard.",
    useWhen: ["Diagnosing context-mode or reviewing context savings and analytics"],
    avoidWhen: ["The task is normal code or data processing"],
    keywords: ["stats", "doctor", "insight", "health", "统计", "诊断", "上下文节省"],
    tools: ["ctx_stats", "ctx_doctor", "ctx_insight"],
  },
  {
    id: "context-administration",
    title: "Context administration",
    summary: "Upgrade context-mode or destructively purge indexed context data.",
    useWhen: ["The user explicitly asks to upgrade context-mode or purge a named scope"],
    avoidWhen: ["Routine searching, indexing, or performance inspection"],
    keywords: ["upgrade", "purge", "delete", "升级", "清除", "删除知识库"],
    tools: ["ctx_upgrade", "ctx_purge"],
  },
  {
    id: "memory-recall",
    title: "Persistent memory recall",
    summary: "Search durable user, global, project, and failure memories, search indexed past conversations, or recover pruned tool-call output.",
    useWhen: ["The task may depend on durable context from previous sessions: preferences, project conventions, prior decisions, known failures, corrections, or condensed outputs"],
    avoidWhen: ["The required evidence is already in the current visible context, or the question is a generic one-off that durable memory would not help"],
    keywords: ["memory", "recall", "search", "session", "history", "recover", "记忆", "召回", "检索", "历史会话", "恢复输出"],
    tools: ["memory_search", "session_search", "context_tree_query"],
  },
  {
    id: "memory-management",
    title: "Persistent memory management",
    summary: "Save, update, or remove durable memories, and create or maintain reusable procedural skills.",
    useWhen: ["A durable fact, preference, convention, correction, or non-obvious reusable procedure should persist across sessions"],
    avoidWhen: ["The information is temporary task progress, derivable from the repository, or a one-off detail that would add noise"],
    keywords: ["remember", "save", "replace", "remove", "skill", "procedure", "记住", "保存", "修改记忆", "技能", "流程"],
    tools: ["memory_add", "memory_replace", "memory_remove", "skill_manage"],
  },
  {
    id: "subagents",
    title: "Subagent orchestration",
    summary: "Launch isolated subagents, collect background results, and steer running delegated work.",
    useWhen: ["A bounded task benefits from an isolated specialist, background execution, or delegated follow-up"],
    avoidWhen: ["The current agent can complete a small direct task without delegation overhead"],
    keywords: ["subagent", "agent", "delegate", "background", "steer", "子代理", "委派", "后台"],
    tools: ["Agent", "get_subagent_result", "steer_subagent"],
  },
  {
    id: "user-interaction",
    title: "Interactive user questions",
    summary: "Pause the agent and collect one or more structured decisions from the user in the TUI.",
    useWhen: ["A missing requirement, preference, confirmation, or choice must come directly from the user before continuing"],
    avoidWhen: ["The user's direct messages already provide the answer, or the task can proceed without another decision"],
    keywords: ["ask", "question", "clarify", "choice", "preference", "提问", "澄清", "选择", "确认"],
    tools: ["ask_user_question"],
  },
  {
    id: "chrome-navigation",
    title: "Chrome navigation and inspection",
    summary: "Connect to the authorized Chrome bridge, manage tabs, navigate, inspect page structure, wait for state, and capture screenshots.",
    useWhen: ["You need to inspect or navigate the user's existing signed-in Chrome profile after explicit /chrome authorization"],
    avoidWhen: ["A normal web search or HTTP page fetch is sufficient, or Chrome has not been explicitly authorized"],
    keywords: ["chrome", "browser", "tab", "navigate", "snapshot", "inspect", "screenshot", "浏览器", "标签页", "网页操作"],
    tools: ["chrome_launch", "chrome_tab", "chrome_navigate", "chrome_snapshot", "chrome_find", "chrome_inspect", "chrome_wait_for", "chrome_screenshot"],
  },
  {
    id: "chrome-interaction",
    title: "Chrome page interaction",
    summary: "Interact with an authorized Chrome page using real pointer, keyboard, touch, form, drag, and scroll input.",
    useWhen: ["You must click, type, fill, press keys, hover, drag, tap, or scroll in the user's authorized Chrome session"],
    avoidWhen: ["Page observation is enough, or the action is irreversible and the user has not approved it"],
    keywords: ["chrome", "browser", "click", "type", "fill", "drag", "scroll", "点击", "输入", "滚动", "浏览器交互"],
    tools: ["chrome_click", "chrome_type", "chrome_fill", "chrome_key", "chrome_hover", "chrome_drag", "chrome_tap", "chrome_scroll"],
  },
  {
    id: "chrome-debugging",
    title: "Chrome diagnostics and upload",
    summary: "Evaluate page JavaScript, inspect captured console/network activity, retrieve response bodies, or attach local files.",
    useWhen: ["Debugging the authorized Chrome page, examining fetch/XHR behavior, evaluating page state, or uploading an explicitly named local file"],
    avoidWhen: ["Navigation, DOM inspection, or ordinary page interaction tools are sufficient"],
    keywords: ["chrome", "browser", "console", "network", "javascript", "upload", "调试", "网络请求", "文件上传"],
    tools: ["chrome_evaluate", "chrome_list_console_messages", "chrome_list_network_requests", "chrome_get_network_request", "chrome_upload_file"],
  },
  {
    id: "mcp-management",
    title: "MCP management",
    summary: "Inspect and manage MCP server connections exposed by Pi's shared adapter.",
    useWhen: ["The user explicitly asks about MCP server status or operations"],
    avoidWhen: ["A mapped first-class MCP tool already handles the task"],
    keywords: ["mcp", "server", "connection", "MCP 服务", "连接"],
    tools: ["mcp"],
  },
];

export interface BundleCatalogResult {
  catalog: ToolCatalog;
  coveredNames: Set<string>;
  unknownTools: ToolInfo[];
}

function compactDescription(tool: ToolInfo): string {
  return tool.description.replace(/\s+/gu, " ").trim().slice(0, 240) || `Use the ${tool.name} tool.`;
}

export function createBundleCatalog(
  tools: ToolInfo[],
  manifestHash: string,
  constraints: CatalogConstraints,
): BundleCatalogResult {
  const available = new Map(tools.map((tool) => [tool.name, tool]));
  const coveredNames = new Set<string>();
  const groups: GroupCard[] = [];
  const cards: ToolCard[] = [];

  for (const definition of BUNDLE_GROUP_DEFINITIONS) {
    const members = definition.tools.flatMap((name) => {
      const tool = available.get(name);
      return tool ? [tool] : [];
    });
    if (members.length === 0) continue;
    for (const tool of members) {
      coveredNames.add(tool.name);
      cards.push({
        name: tool.name,
        summary: compactDescription(tool),
        useWhen: [...definition.useWhen],
        avoidWhen: [...definition.avoidWhen],
        keywords: [...new Set([...definition.keywords, ...tool.name.split(/[_-]/u)])],
        primaryGroup: definition.id,
      });
    }
    groups.push({
      id: definition.id,
      title: definition.title,
      summary: definition.summary,
      useWhen: [...definition.useWhen],
      avoidWhen: [...definition.avoidWhen],
      tools: members.map((tool) => tool.name),
    });
  }

  const unknownTools = tools.filter((tool) => !coveredNames.has(tool.name));
  const fallback = createFallbackCatalog(unknownTools, manifestHash, {
    maxToolsPerGroup: constraints.maxToolsPerGroup,
    groupOverrides: {},
  });
  const reservedIds = new Set(groups.map((group) => group.id));
  const renamedGroups = new Map<string, string>();
  for (const group of fallback.groups) {
    let id = group.id;
    while (reservedIds.has(id)) id = `custom-${id}`;
    reservedIds.add(id);
    renamedGroups.set(group.id, id);
    groups.push({ ...group, id, title: id.replace(/-/gu, " ") });
  }
  for (const card of fallback.tools) {
    cards.push({ ...card, primaryGroup: renamedGroups.get(card.primaryGroup) ?? card.primaryGroup });
  }

  const overridden = applyCatalogOverrides(groups, cards, constraints.groupOverrides);
  return {
    catalog: {
      version: CATALOG_VERSION,
      manifestHash,
      generatedAt: new Date().toISOString(),
      generatedBy: "my-pi bundle seed",
      groups: overridden.groups,
      tools: overridden.tools,
    },
    coveredNames,
    unknownTools,
  };
}

export function catalogPreservesBundleAssignments(
  candidate: ToolCatalog,
  bundleCatalog: ToolCatalog,
  coveredNames: Set<string>,
): boolean {
  const expected = new Map(
    bundleCatalog.tools.filter((tool) => coveredNames.has(tool.name)).map((tool) => [tool.name, tool.primaryGroup]),
  );
  const actual = new Map(candidate.tools.map((tool) => [tool.name, tool.primaryGroup]));
  return [...expected].every(([name, group]) => actual.get(name) === group);
}