!7

sS facts = [[
  We want to find out what is more correct than what.
  
  "not correct" is a candidate.
  "maybe quite correct" is a candidate.
  "really really correct" is a candidate.
  "buggy" is a candidate.
  "total garbage" is a candidate.
  "incorrect" is a candidate.
  "almost correct" is a candidate.
  "absolutely correct" is a candidate.
  "very correct" is a candidate.
  
  [nfhwfngqkgoqtngs] (X is a candidate.) and (Y is a candidate.) and (X <> Y) and (I don't know if (X is more correct than Y.)) => (Ask (Is X # more correct than Y?))
  // Note: The # is just a filler for parsing, we'll get rid of that in time. Also, you will be able to write stuff without brackets of course.
  [yrgkrfrcwubpevzu] While (no question) => (Apply nfhwfngqkgoqtngs)
  
  no question :- There is no statement with operator fxxathfdlfzgmaov.
  
  // Just a pretty-printing statement
  omrvwjslbkffaxoj hszwyiyetuuhcfwz acwmbrxqrlaplyqu
]];

sS concepts = [[
  phkdhqkhzytkwdpb - (X) and (Y) and (Z) and (AA) => (AB)
  cdzttdbxadjreorm - We want to find out what is X than what.
  ogqdgzepqbunuuht - X is a candidate.
  psrgtxwtfzmfzhsx - Is X Y than Z?
  hszwyiyetuuhcfwz - Is X # Y than Z?
  acwmbrxqrlaplyqu - Is "X" Y than "Z"?
  qgxjwufpfzkqvmxb - X is Y than Z.
  ylvaoplzguvhegka - X is not Y than Z.
  zxucpbfzmexohoiv - It is not true that (X).
  buahjsodljsaxvaq - X <> Y
  fxxathfdlfzgmaov - Ask (X)
  mzdvauejerzefagk - I don't know if (X)
  omrvwjslbkffaxoj - Format operator X as template Y.
  hzmtabxcmkrtffgh - Apply X
  plprefzezbluijrw - no question
  cuutddpitkuswthu - While (X) => (Y)
  sicrogpdrtkiptun - X :- Y
  zhoulgsatpswstfa - There is no statement with operator X.
  ltyqczktgtjxrtlf - more correct
  zveeggveflecjwvr - total garbage
  wolealpbqkkqkvqq - not correct
  tomkbzlqlpeiekvu - maybe quite correct
  dnxyynujqydgcxcd - really really correct
  trajdgvqepyhsumb - buggy
  lwikikhkydtewtjc - incorrect
  muxjpepnjiyjghwj - almost correct
  wtnpjovqqiswlyay - absolutely correct
  bmliokweerblfxco - very correct
]];

static Map<S, F1<Lisp, Bool>> evaluators = new HashMap;
  
p-tt {
  centerConsole();
  substance();
  
  // customize parsing and printing
  set englishToConceptLanguage_unquote;
  set englishToConceptLanguage_simple_noXYZ;
  set formatXYZ_quotedVars;
  
  useConceptsAndStatements(concepts, facts);
  printLispStatements();
  
  // create evaluators
  
  // X <> Y
  evaluators.put("buahjsodljsaxvaq", new F1<Lisp,Bool>() {
    Bool get(Lisp l) {
      ret l.size() == 2 && neq(l.get(0), l.get(1));
    }
  });
  
  // I don't know if (X)
  evaluators.put("mzdvauejerzefagk", new F1<Lisp,Bool>() {
    Bool get(Lisp l) {
      ret l.size() == 1 && notKnownIf(l.get(0));
    }
  });
  
  // There is no statement with operator X.
  evaluators.put("zhoulgsatpswstfa", new F1<Lisp,Bool>() {
    Bool get(Lisp l) {
      ret l.size() == 1 && hasTruthWithHead(l.raw(0));
    }
  });
  
  // :- rules
  for (final Lisp rule : lispTruth2("sicrogpdrtkiptun"))
    evaluators.put(rule.raw(0), new F1<Lisp,Bool>() {
    Bool get(Lisp l) {
      ret l.isLeaf() && matchCondition(rule.get(1));
    }
  });
  
  //applyRule("nfhwfngqkgoqtngs");
  runInstruction("yrgkrfrcwubpevzu");
}

svoid runInstruction(S instructionID) {
  Lisp rule = getLispTruth(instructionID);
  if (rule == null) { print("Instruction not found: " + instructionID); ret; }
  runInstruction(rule);
}
  
svoid runInstruction(Lisp rule) {
  if (rule.is("hzmtabxcmkrtffgh", 1))
    applyRule(rule.raw(1));
  else if (rule.is("cuutddpitkuswthu", 2)) {
    while (ping() && lispTrue(rule.get(0)))
      runInstruction(rule.get(1));
  } else print("Unknown instruction type: " + rule);
}

svoid applyRule(S ruleID) {
  // process the rule
  Lisp rule = getLispTruth(ruleID);
  if (rule == null) { print("Rule not found: " + ruleID); ret; }
  L<Lisp> conditions = dropLast(rule.args);
  Lisp out = last(rule.args);
  //for (Lisp cond : conditions) print("Condition: " + cond);
    
  new Map<S, Lisp> matches;
  int n = matchConditions_random(conditions, matches);
  if (n == -1) {
    print("Yo! " + struct(matches));
    out = lispReplaceVars(out, matches);
    if (lispTrue(out))
      print("Already had: " + out);
    else {
      print("Defining: " + lispToEnglish_prettier(out));
      lispAddLocalTruth(out);
    }
  } else
    print("Only " + n + " of " + n(conditions, "condition") + " met");
}

// if match: returns -1
// if no match: returns how many conditions were met
static int matchConditions_random(L<Lisp> conditions, Map<S, Lisp> m) {
  if (empty(conditions)) ret -1;
  Lisp condition = first(conditions);
  Map<S, Lisp> m2 = cloneMap(m);
  if (!matchCondition_random(condition, m2)) ret 0;
  int n = matchConditions_random(dropFirst(conditions), m2);
  if (n == -1) {
    m.putAll(m2);
    ret -1;
  }
  ret n+1; // failure
}

sbool matchCondition(Lisp condition) {
  O evaluator = evaluators.get(condition.head);
  if (evaluator != null)
    ret isTrue(callF(evaluator, lispReplaceVars(condition, m)));
  ret lispTrue(condition);
}

static bool matchCondition_random(Lisp condition, Map<S, Lisp> m) {
  L<Lisp> facts = lispTruth();
  
  O evaluator = evaluators.get(condition.head);
  if (evaluator != null)
    ret isTrue(callF(evaluator, lispReplaceVars(condition, m)));

  L<Map<S, Lisp>> candidates = new L;
  for (Lisp fact : facts) {
    Map<S, Lisp> m2 = cloneMap(m);
    if (lispMatchIC_xyzVars_sub(condition, fact, m2))
      candidates.add(m2);
  }
  //print("Have " + n(candidates, "candidate"));
  if (empty(candidates)) false;
  m.putAll(random(candidates));
  true;
}

sbool notKnownIf(Lisp l) {
  // check fact and negation
  ret !lispTrue(l)
    && !lispTrue(lisp("zxucpbfzmexohoiv", l);
}