#!/usr/bin/env bash
# LiveTable MCPをClaude Desktop / Claude Codeに登録するインストーラ
set -u

# Node.jsが無い場合、既知のパッケージマネージャがあれば自動インストールを試みる
# (失敗しても案内表示にフォールバックする。強制インストールはしない)。
ensure_node() {
  if command -v node >/dev/null 2>&1; then
    return 0
  fi
  echo "Node.js was not found — attempting to install it automatically."
  if command -v brew >/dev/null 2>&1; then
    brew install node
  elif command -v apt-get >/dev/null 2>&1; then
    sudo apt-get update && sudo apt-get install -y nodejs npm
  fi
  if command -v node >/dev/null 2>&1; then
    return 0
  fi
  echo "Could not install Node.js automatically. Install the LTS from https://nodejs.org and run this again."
  return 1
}

if ensure_node; then
node - <<'LIVETABLE_MCP_EOF'
const fs = require("fs");
const os = require("os");
const path = require("path");

function configPath(dirName) {
  if (process.platform === "win32")
    return path.join(process.env.LOCALAPPDATA || path.join(os.homedir(), "AppData", "Local"), dirName, "claude_desktop_config.json");
  if (process.platform === "darwin")
    return path.join(os.homedir(), "Library", "Application Support", dirName, "claude_desktop_config.json");
  return path.join(os.homedir(), ".config", dirName, "claude_desktop_config.json");
}

let anyOk = false;
for (const dirName of ["Claude","Claude-3p"]) {
  const p = configPath(dirName);
  let config = {};
  if (fs.existsSync(p)) {
    try {
      config = JSON.parse(fs.readFileSync(p, "utf8"));
    } catch (e) {
      console.log("Could not read the existing Claude Desktop config file at " + p + ". Skipped this file without changing it to avoid overwriting it.");
      continue;
    }
  }
  config.mcpServers = config.mcpServers || {};
  config.mcpServers["livetable"] = {
    command: "npx",
    args: [
      "-y",
      "mcp-remote@0.8.6",
      "https://livetable-95ae7ddea565.herokuapp.com/api/mcp",
      "--static-oauth-client-info",
      JSON.stringify({ client_id: "06e2d141576e50dea33b396b72cb84b2" }),
      "--static-oauth-client-metadata",
      JSON.stringify({ scope: "openid email offline_access" })
    ]
  };
  fs.mkdirSync(path.dirname(p), { recursive: true });
  fs.writeFileSync(p, JSON.stringify(config, null, 2));
  console.log("[OK] Claude Desktop (" + dirName + "): registered LiveTable MCP.");
  console.log("File modified: " + p);
  anyOk = true;
}
if (!anyOk) process.exit(1);
LIVETABLE_MCP_EOF
fi

if command -v claude >/dev/null 2>&1; then
  claude mcp remove livetable -s user >/dev/null 2>&1
  if claude mcp add livetable --transport http --scope user --client-id 06e2d141576e50dea33b396b72cb84b2 https://livetable-95ae7ddea565.herokuapp.com/api/mcp; then
    echo "[OK] Claude Code: registered LiveTable MCP."
  else
    echo "[FAILED] Claude Code: could not register LiveTable MCP (see the error above)."
  fi
else
  echo "Claude Code CLI ('claude') was not found. Skipped Claude Code setup — install Claude Code and rerun this script to add it there too."
fi