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#include <cstdint>
#include "src/tint/api/common/binding_point.h"
#include "src/tint/cmd/fuzz/wgsl/fuzz.h"
#include "src/tint/lang/wgsl/ast/identifier.h"
#include "src/tint/lang/wgsl/ast/module.h"
#include "src/tint/lang/wgsl/ast/transform/single_entry_point.h"

namespace tint::ast::transform {
namespace {

void SingleEntryPointFuzzer(const Program& program, uint8_t entry_point_index) {
    std::string entry_point;
    for (auto* fn : program.AST().Functions()) {
        if (fn->IsEntryPoint()) {
            if (entry_point_index-- == 0) {
                entry_point = fn->name->symbol.Name();
                break;
            }
        }
    }

    if (entry_point.empty()) {
        return;
    }

    DataMap inputs;
    inputs.Add<SingleEntryPoint::Config>(std::move(entry_point));

    DataMap outputs;
    if (auto result = SingleEntryPoint{}.Apply(program, inputs, outputs)) {
        if (!result->IsValid()) {
            TINT_ICE() << "SingleEntryPoint returned invalid program:\n"
                       << Program::printer(*result) << "\n"
                       << result->Diagnostics();
        }
    }
}

}  // namespace
}  // namespace tint::ast::transform

TINT_WGSL_PROGRAM_FUZZER(tint::ast::transform::SingleEntryPointFuzzer);