// Step 860: Pair-specific hint model interface (10 tests)
#include "graduation/HintModelInterface.h"
#include <iostream>
static int p=0,f=0;
#define T(n) { std::cout << "  " << #n << "... "; }
#define P() { std::cout << "PASS\n"; ++p; }
#define F(m) { std::cout << "FAIL: " << m << "\n"; ++f; }
#define C(c,m) if(!(c)){F(m);return;}

void t1(){T(empty_pair_model_unavailable);
    auto r=HintModelInterface::query("",{});
    C(!r.modelAvailable,"unavailable");P();}
void t2(){T(valid_pair_model_available);
    auto r=HintModelInterface::query("py->cpp",{"feat1"});
    C(r.modelAvailable,"available");P();}
void t3(){T(pair_id_set);
    auto r=HintModelInterface::query("rust->go",{"f"});
    C(r.pairId=="rust->go","pairId");P();}
void t4(){T(hints_generated_for_features);
    auto r=HintModelInterface::query("py->cpp",{"f1","f2"});
    C(r.hints.size()==2,"size");P();}
void t5(){T(hint_ids_sequential);
    auto r=HintModelInterface::query("py->cpp",{"a","b"});
    C(r.hints[0].hintId=="H-1"&&r.hints[1].hintId=="H-2","ids");P();}
void t6(){T(hint_non_authoritative);
    auto r=HintModelInterface::query("py->cpp",{"x"});
    C(r.hints[0].nonAuthoritative,"nonAuth");P();}
void t7(){T(hint_confidence_positive);
    auto r=HintModelInterface::query("py->cpp",{"x"});
    C(r.hints[0].confidence>0.0f,"confidence");P();}
void t8(){T(hint_suggestion_contains_feature);
    auto r=HintModelInterface::query("py->cpp",{"myFeat"});
    C(r.hints[0].suggestion.find("myFeat")!=std::string::npos,"suggestion");P();}
void t9(){T(to_json_has_model_available);
    auto r=HintModelInterface::query("py->cpp",{"f"});
    auto j=HintModelInterface::toJson(r);
    C(j.contains("model_available"),"json");P();}
void t10(){T(to_json_hints_array);
    auto r=HintModelInterface::query("py->cpp",{"f"});
    auto j=HintModelInterface::toJson(r);
    C(j["hints"].is_array(),"array");P();}

int main(){
    std::cout<<"Step 860: Pair-specific hint model interface\n";
    t1();t2();t3();t4();t5();t6();t7();t8();t9();t10();
    std::cout<<"\nResults: "<<p<<"/"<<(p+f)<<" passed\n";
    return f?1:0;
}