#!/bin/sh
# Adds the Editing Engine to Claude Code for every project, and lets its tools run without asking each time.
#   curl -fsSL https://editing-engine.tail1ac0d5.ts.net/install.sh | sh
# Claude Code won't change its own settings from inside a session in auto mode, so this runs in a terminal instead.
set -e
URL="https://editing-engine.tail1ac0d5.ts.net/mcp"
NAME=editing-engine
RULE="mcp__$NAME"

# Edit a JSON file in place: jq where it's installed (macOS 15 and later), else JavaScript through osascript.
edit_json() {  # file, jq filter, JavaScript statement on `d`
  [ -s "$1" ] || echo '{}' > "$1"
  if command -v jq >/dev/null 2>&1; then
    jq --arg url "$URL" --arg name "$NAME" --arg rule "$RULE" "$2" "$1" > "$1.tmp" && mv "$1.tmp" "$1"
  else
    F="$1" URL="$URL" NAME="$NAME" RULE="$RULE" osascript -l JavaScript -e "
      ObjC.import('Foundation');
      const env = (k) => \$.NSProcessInfo.processInfo.environment.objectForKey(k).js;
      const [f, url, name, rule] = ['F', 'URL', 'NAME', 'RULE'].map(env);
      const d = JSON.parse(\$.NSString.stringWithContentsOfFileEncodingError(f, \$.NSUTF8StringEncoding, null).js);
      $3;
      \$(JSON.stringify(d, null, 2)).writeToFileAtomicallyEncodingError(f, true, \$.NSUTF8StringEncoding, null);" >/dev/null
  fi
}

mkdir -p "$HOME/.claude"
if command -v claude >/dev/null 2>&1; then
  claude mcp remove "$NAME" --scope user >/dev/null 2>&1 || true
  claude mcp add --transport http --scope user "$NAME" "$URL" >/dev/null
else
  # Only the Claude desktop app, no claude command: write the same entry claude mcp add would.
  edit_json "$HOME/.claude.json" '.mcpServers[$name] = {type: "http", url: $url}' \
    "d.mcpServers = d.mcpServers || {}; d.mcpServers[name] = {type: 'http', url: url}"
fi
edit_json "$HOME/.claude/settings.json" '.permissions.allow = ((.permissions.allow // []) + [$rule] | unique)' \
  "d.permissions = d.permissions || {}; d.permissions.allow = [...new Set([...(d.permissions.allow || []), rule])]"

echo "Added the Editing Engine to Claude Code ($URL), with its tools always allowed."
echo "Next: sign in. In a terminal, start claude, run /mcp, pick $NAME and choose Authenticate."
echo "In the Claude desktop app, open a new session and connect $NAME when it asks."