// Step 1936: DAPBreakpointHitDispatcher
//
//  t1: dispatch finds active breakpoint by source+line, sets router
//  t2: dispatch returns dispatched=false when no breakpoint matches
//  t3: dispatchAll returns all matches across different nodes/languages
//  t4: dispatch skips inactive breakpoints
//  t5: dispatchAll with no matches returns empty vector

#include "DAPBreakpointHitDispatcher.h"
#include "ASTNodeBreakpointMapper.h"
#include "DebugAdapterRouter.h"
#include <iostream>

namespace ws = whetstone;
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;}

static ws::DebugAdapterRouter makeRouter() {
    ws::DebugAdapterRouter r;
    r.registerAdapter("Python", {"stackTrace","stepIn"});
    r.registerAdapter("Rust",   {"stackTrace"});
    r.setActiveLanguage("Python");
    return r;
}

void t1(){
    T(dispatch_finds_breakpoint_sets_router);
    ws::ASTNodeBreakpointMapper mapper;
    mapper.setBreakpoint("HandleRequest","Rust","server.rs",42);
    mapper.setBreakpoint("HandleRequest","Python","server.py",10);
    auto router = makeRouter();
    ws::DAPBreakpointHitDispatcher d;
    auto r = d.dispatch("server.rs", 42, mapper, router);
    C(r.dispatched,                        "dispatched");
    C(r.language == "Rust",                "language Rust");
    C(r.astNodeId == "HandleRequest",      "astNodeId");
    C(r.line == 42,                        "line 42");
    C(router.getActiveLanguage() == "Rust","router set to Rust");
    P();
}

void t2(){
    T(dispatch_no_match_returns_false);
    ws::ASTNodeBreakpointMapper mapper;
    mapper.setBreakpoint("HandleRequest","Rust","server.rs",42);
    auto router = makeRouter();
    ws::DAPBreakpointHitDispatcher d;
    auto r = d.dispatch("server.rs", 99, mapper, router);
    C(!r.dispatched,                          "not dispatched");
    C(router.getActiveLanguage() == "Python", "router unchanged");
    P();
}

void t3(){
    T(dispatchAll_returns_all_matches);
    ws::ASTNodeBreakpointMapper mapper;
    // Two different nodes with a breakpoint at same source:line
    mapper.setBreakpoint("NodeA","Python","shared.py",5);
    mapper.setBreakpoint("NodeB","Python","shared.py",5);
    mapper.setBreakpoint("NodeC","Rust",  "other.rs", 10);
    auto router = makeRouter();
    ws::DAPBreakpointHitDispatcher d;
    auto results = d.dispatchAll("shared.py", 5, mapper, router);
    C(results.size() == 2,  "two matches");
    C(results[0].dispatched,"first dispatched");
    C(results[1].dispatched,"second dispatched");
    P();
}

void t4(){
    T(dispatch_skips_inactive_breakpoints);
    ws::ASTNodeBreakpointMapper mapper;
    mapper.setBreakpoint("HandleRequest","Rust","server.rs",42);
    mapper.deactivateAll("HandleRequest");
    auto router = makeRouter();
    ws::DAPBreakpointHitDispatcher d;
    auto r = d.dispatch("server.rs", 42, mapper, router);
    C(!r.dispatched, "inactive bp not dispatched");
    P();
}

void t5(){
    T(dispatchAll_no_match_returns_empty);
    ws::ASTNodeBreakpointMapper mapper;
    mapper.setBreakpoint("HandleRequest","Rust","server.rs",42);
    auto router = makeRouter();
    ws::DAPBreakpointHitDispatcher d;
    auto results = d.dispatchAll("server.rs", 99, mapper, router);
    C(results.empty(), "empty on no match");
    P();
}

int main(){
    std::cout << "Step 1936: DAPBreakpointHitDispatcher\n";
    t1(); t2(); t3(); t4(); t5();
    std::cout << "\n" << p << "/" << (p+f) << " passed\n";
    return f > 0 ? 1 : 0;
}