// This file is part of the 64k demo project.
// It tests all v2 demo effect classes for basic construction.
// Validates that every v2 effect can be instantiated without crashes.
//
// MAINTENANCE REQUIREMENT: When adding a new v2 effect to demo_effects.h:
// 1. Add it to the test list below
// 2. Run test to verify: ./build/test_demo_effects

#include "../common/webgpu_test_fixture.h"
#include "gpu/demo_effects.h"
#include <cassert>
#include <cstdio>
#include <memory>
#include <vector>

// Helper: Test v2 effect construction
static int test_effect_v2(const char* name, std::shared_ptr<EffectV2> effect) {
  fprintf(stdout, "  Testing %s...\n", name);

  if (!effect) {
    fprintf(stderr, "    ✗ Construction failed\n");
    return 0;
  }

  fprintf(stdout, "    ✓ %s OK\n", name);
  return 1;
}

// Test all available v2 effects
static void test_v2_effects() {
  fprintf(stdout, "Testing V2 effects...\n");

  WebGPUTestFixture fixture;
  if (!fixture.init()) {
    fprintf(stdout, "  ⚠ WebGPU unavailable - skipping test\n");
    return;
  }

  std::vector<std::pair<const char*, std::shared_ptr<EffectV2>>> effects = {
      {"PassthroughEffectV2",
       std::make_shared<PassthroughEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
      {"GaussianBlurEffectV2",
       std::make_shared<GaussianBlurEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
      {"PlaceholderEffectV2",
       std::make_shared<PlaceholderEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
      {"HeptagonEffectV2",
       std::make_shared<HeptagonEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
      {"ParticlesEffectV2",
       std::make_shared<ParticlesEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
      {"RotatingCubeEffectV2",
       std::make_shared<RotatingCubeEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
      {"Hybrid3DEffectV2",
       std::make_shared<Hybrid3DEffectV2>(
           fixture.ctx(), std::vector<std::string>{"source"},
           std::vector<std::string>{"sink"})},
  };

  int passed = 0;
  for (const auto& [name, effect] : effects) {
    passed += test_effect_v2(name, effect);
  }

  fprintf(stdout, "  ✓ %d/%zu V2 effects tested\n", passed, effects.size());
}

int main() {
  fprintf(stdout, "=== Demo Effects Tests ===\n");

  extern void InitShaderComposer();
  InitShaderComposer();

  test_v2_effects();

  fprintf(stdout, "=== All Tests Passed ===\n");
  return 0;
}