{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "169e11e8-19c7-47ae-b8af-817e2e474ee7",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Overwriting book.jsgf\n"
     ]
    }
   ],
   "source": [
    "%%writefile book.jsgf\n",
    "#JSGF V1.0 UTF-8 pl;\n",
    "\n",
    "grammar book;\n",
    "\n",
    "public <rezerwuj> = chcialbym zarezerwowac stolik <dzien_rezerwacji> <godzina_rezerwacji> <liczba_osob> ;\n",
    "\n",
    "<dzien_rezerwacji> = na <dzien> {day};\n",
    "\n",
    "<dzien> = dzisiaj | jutro | poniedzialek | wtorek | srode | czwartek | piatek | sobote | niedziele;\n",
    "\n",
    "<godzina_rezerwacji> = na [godzine] <godzina_z_minutami> {hour};\n",
    "\n",
    "<godzina_z_minutami> = <godzina> [<minuty>];\n",
    "\n",
    "<godzina> = dziewiata | dziesiata | jedenasta | dwunasta;\n",
    "\n",
    "<minuty> = pietnascie | trzydziesci;\n",
    "\n",
    "<liczba_osob> = (na | dla) <liczba> {size} osob;\n",
    "\n",
    "<liczba> = dwie | dwoch | trzy | trzech | cztery | czterech | piec | pieciu;"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "88cc9879-a59c-4c90-adb6-1022c42913e6",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Overwriting order.jsgf\n"
     ]
    }
   ],
   "source": [
    "%%writefile order.jsgf\n",
    "#JSGF V1.0 UTF-8 pl;\n",
    "\n",
    "grammar order;\n",
    "\n",
    "public <zamow> = (chcialbym | chcialabym)  zamowic <danie> <stolik>;\n",
    "\n",
    "<danie> = <potrawa> {dish};\n",
    "\n",
    "<potrawa> = pizza peperoni | spaghetti carbonara | burger szefa;\n",
    "\n",
    "<stolik> = (do stolika | na stolik ) <numer_stolika> {stolik};\n",
    "\n",
    "<numer_stolika> = 100 | 101 | 102 | 103 | 104 | 105;"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "57fb9886-0232-4dd9-b385-7cae1b068f6e",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "Grammar(version=1.0, charset=UTF-8, language=pl, name=order)"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import jsgf\n",
    "\n",
    "book_grammar = jsgf.parse_grammar_file('book.jsgf')\n",
    "order_grammar = jsgf.parse_grammar_file('order.jsgf')\n",
    "order_grammar"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "8f5acde6-4f3c-425d-a202-f361b219922d",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[Rule(name='rezerwuj', visible=True, expansion=Sequence(Literal('chcialbym zarezerwowac stolik'), NamedRuleRef('dzien_rezerwacji'), NamedRuleRef('godzina_rezerwacji'), NamedRuleRef('liczba_osob')))]"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "utterance = 'chcialbym zarezerwowac stolik na jutro na godzine dwunasta trzydziesci na piec osob'\n",
    "matched = book_grammar.find_matching_rules(utterance)\n",
    "if not matched:\n",
    "    matched = order_grammar.find_matching_rules(utterance)\n",
    "matched"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "6cb7d2ba-d8ee-403a-bbf3-d7ea3e0475ba",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[Rule(name='zamow', visible=True, expansion=Sequence(ParsedAlternativeSet(Literal('chcialbym'), Literal('chcialabym')), Literal('zamowic'), NamedRuleRef('danie'), NamedRuleRef('stolik')))]"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "utterance = 'chcialbym zamowic burger szefa do stolika 104'\n",
    "matched = book_grammar.find_matching_rules(utterance)\n",
    "if not matched:\n",
    "    matched = order_grammar.find_matching_rules(utterance)\n",
    "matched"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "c914cc3d-b297-4e05-917c-6a2f09c0f8a9",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'act': 'order', 'slots': [('dish', 'burger szefa'), ('stolik', '104')]}"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def get_dialog_act(rule):\n",
    "    slots = []\n",
    "    get_slots(rule.expansion, slots)\n",
    "    return {'act': rule.grammar.name, 'slots': slots}\n",
    "\n",
    "def get_slots(expansion, slots):\n",
    "    if expansion.tag != '':\n",
    "        slots.append((expansion.tag, expansion.current_match))\n",
    "        return\n",
    "\n",
    "    for child in expansion.children:\n",
    "        get_slots(child, slots)\n",
    "\n",
    "    if not expansion.children and isinstance(expansion, jsgf.NamedRuleRef):\n",
    "        get_slots(expansion.referenced_rule.expansion, slots)\n",
    "\n",
    "get_dialog_act(matched[0])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "91eaed10-e8c3-4429-a232-d317b84ec38f",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'act': 'book',\n",
       " 'slots': [('day', 'jutro'), ('hour', 'dziesiata'), ('size', 'trzech')]}"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def nlu(utterance):\n",
    "    matched = book_grammar.find_matching_rules(utterance)\n",
    "\n",
    "    if matched:\n",
    "        return get_dialog_act(matched[0])\n",
    "    else:\n",
    "        return {'act': 'null', 'slots': []}\n",
    "\n",
    "nlu('chcialbym zarezerwowac stolik na jutro na godzine dziesiata dla trzech osob')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "d85e8543-be59-4c5f-b9f9-27631a899c2a",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.10.10"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}