#! /bin/bash

notea() (
   ncurl() {
      curl -sS "$@"
   }

   ids() {
      for id in $(_tree_ids); do
         if ! _is_deleted $id; then
            echo $id
         fi
      done
   }

   meta() {
      local cache_key="notea cache meta $1"
      if cache get "$cache_key"; then
         return 0
      fi
      _meta "$@" | cache put "$cache_key"
   }

   _meta() {
      ncurl $NOTEA_ADDR/api/notes/$1/meta
   }

   _is_deleted() {
      local id="$1"
      if [ "$id" == "root" ] || [ "$id" == "null" ]; then
         return 1
      fi
      local meta="$(meta "$id")"
      if echo "$meta" | jq .deleted | grep -q 1; then
         return 0
      fi
      local pid="$(echo "$meta" | jq -r .pid)"
      if [ -z "$pid" ]; then
         return 0
      fi
      _is_deleted "$pid"
   }

   _tree_ids() {
      ncurl $NOTEA_ADDR/api/tree \
         | jq '.items | to_entries[].value.id' \
         | grep -v '^null$' \
         | jq -r . \
         | grep -v '^root$'
   }

   get() {
      local cache_key="notea cache $1"
      if cache get "$cache_key"; then
         return 0
      fi
      _get "$@" | cache put "$cache_key"
   }

   _get() {
      ncurl $NOTEA_ADDR/api/notes/$1
   }

   put() {
      set -u
      local ret=0
      if ! _put "$@"; then
         ret=1
      fi
      set +u
      return $ret
   }

   _put() {
      local xsrf_key="xsrf-token"
      local contains_tokens="$(ncurl -i $NOTEA_ADDR/api)"
      local xsrf_token="$(echo "$contains_tokens" | grep -o '"csrfToken":[^,]*' | tr ':' '\n' | jq -r . | tail -n 1)"
      local xsrf_cookie="$(echo "$contains_tokens" | grep ^set.cookie: | sed 's/^set.cookie: //' | tr ';' '\n' | head -n 1)"
      local request="$(echo '{
         "content": '"$(printf "%s\n" "$CONTENT" | jq -Rs)"',
         "deleted": 0,
         "id": '"$(echo "$ID" | jq -R)"',
         "pid": '"$(echo "$PID" | jq -R)"',
         "pinned": 0,
         "shared": 0,
         "title": '"$(echo "$TITLE [generated]" | jq -R)"'
      }' | jq -c .)"
      echo "$request" | ncurl \
         -X POST \
         -H "$xsrf_key: $xsrf_token" \
         -b "$xsrf_cookie" \
         -H "Content-Type: application/json" \
         -d @- \
         $NOTEA_ADDR/api/notes \
         | grep -q "$ID"
   }

   "$@"
)