Display and search zets from a temporary file

zet

@@ -4,8 +4,13 @@ set -euo pipefail
 
 EDITOR="${EDITOR:-nvim}"
 ZET_DIR="$HOME/Documents/zet"
+ZET_TMP="$ZET_DIR/.zets"
 
-mkdir -p "$ZET_DIR"
+if [[ ! -d "$ZET_DIR" ]]; then
+  mkdir -p "$ZET_DIR"
+  touch "$ZET_TMP"
+  echo "/.zets" > "$ZET_DIR/.gitignore"
+fi
 
 commit_changes() {
   filename="$1"
@@ -35,6 +40,8 @@ delete_zet() {
 
   if [[ -d "$dir" ]]; then
     mv -v "$dir" "/tmp/zet-${id}"
+
+    # TODO: Delete from $ZET_TMP.
   else
     echo "Note not found: $id" >&2
     exit 1
@@ -50,6 +57,8 @@ edit_zet() {
     "$EDITOR" "$file"
 
     commit_changes "$file" "Edited $file"
+
+    # TODO: Update $ZET_TMP if the title is changed.
   else
     result="$(search_zets "$query")"
     result_count="$(echo "$result" | grep -c '^')"
@@ -98,11 +107,13 @@ main() {
 }
 
 new_zet() {
-  filename="${ZET_DIR}/$(date "+%Y%m%d%H%M%S")/index.adoc"
+  date="$(date "+%Y%m%d%H%M%S")"
+  filename="${ZET_DIR}/$date/index.adoc"
   mkdir -p "$(dirname "$filename")"
 
   title="$*"
   echo "= $title" > "$filename"
+  echo "$date $title" >> "$ZET_TMP"
 
   "$EDITOR" "$filename"
 
@@ -115,25 +126,11 @@ run_git_command() {
 }
 
 search_zets() {
-  query="$*"
-
-  grep --files-with-matches --recursive --ignore-case "$query" "$ZET_DIR" | grep '/index\.adoc$' | while read -r filepath; do
-    dirpath=$(dirname "$filepath")
-    relpath="${dirpath#"$ZET_DIR/"}"
-
-    echo -n "$relpath "
-
-    head -n 1 "$filepath" | sed 's/^= //'
-  done
+  grep --ignore-case "$*" < "$ZET_TMP"
 }
 
 show_titles() {
-  find "$ZET_DIR" -type f -name 'index.adoc' | while read -r filename; do
-    id=$(basename "$(dirname "$filename")")
-    title=$(head -n 1 "$filename" | sed 's/^= //' | sed 's/^# //')
-
-    echo "$id $title"
-  done | sort
+  cat "$ZET_TMP"
 }
 
 show_zet() {