zsh: add asciinema-switch

helps switch different asciinema profiles

functions/asciinema.zsh

@@ -0,0 +1,55 @@
+function warning {
+    echo -e "$(color $YELLOW Warning:) $@" >&2
+}
+
+function error {
+    echo -e "$(color $RED Error:) $@" >&2
+}
+
+function info {
+    echo -e "$(color $GREEN Info:) $@"
+}
+
+function switch-asciinema-user
+{
+  local conf_dir="$HOME/.config/asciinema"
+  local current_id=$(basename $(readlink -f ${conf_dir}/install-id ))
+  function get_ids {
+    find ${conf_dir} -name 'install-id-*' -exec basename {} \;
+  }
+
+  if [[ $1 == "-l" || $1 == "--list" ]]; then
+      echo "$(color $BOLD Available ids): (current = $(color $UNDERLINE ${current_id}))"
+    for _id in $(get_ids); do
+      echo " $(green ➡️) ${_id}"
+    done
+    return
+  fi
+
+  local ids=$(get_ids)
+  local query
+  local new_id
+  if [[ -n "$@" ]]; then
+      query="-q $@"
+  fi
+  new_id=$(echo $ids| fzf --height=$(($(wc -l <<< $ids)+2)) ${query} )
+  if [[ -z $new_id ]]; then
+      warning "Keeping curent id ($(color $UNDERLINE ${current_id}))"
+      return
+  fi
+
+  if [[ "$new_id" == "$current_id" ]]; then
+    warning "id $new_id is already set."
+    return
+  fi
+
+  local id_file="${conf_dir}/${new_id}"
+  if [[ ! -f ${id_file} ]]; then
+    error "${id_file} does not exist"
+    return
+  fi
+
+  ln -sf "${id_file}" "${conf_dir}/install-id" && \
+    info "Set \"$new_id\"." || \
+    error "Could not set id \"$new_id\". (run with -l for a list of available profiles)"
+}