const std = @import("std");

// This test attempts to import the ACTUAL generated gpu_test.zig
// It will FAIL because gpu_test.zig references undefined types!

// Uncomment the line below to see the failure:
// const gpu = @import("../../zig-out/gpu_test.zig");

// Expected errors when uncommented:
// error: use of undeclared identifier 'Window'
// error: use of undeclared identifier 'Rect'
// error: use of undeclared identifier 'FColor'
// error: use of undeclared identifier 'FlipMode'

test "FAILS: cannot import generated gpu_test.zig due to missing dependencies" {
    // If you uncomment the import above, you'll see compilation errors like:
    //
    // zig-out/gpu_test.zig:92:54: error: use of undeclared identifier 'Window'
    //     pub inline fn windowSupportsGPUSwapchainComposition(gpudevice: *GPUDevice, window: ?*Window, ...)
    //
    // zig-out/gpu_test.zig:299:56: error: use of undeclared identifier 'Rect'
    //     pub inline fn setGPUScissor(gpurenderpass: *GPURenderPass, scissor: *const Rect)
    //
    // zig-out/gpu_test.zig:303:64: error: use of undeclared identifier 'FColor'
    //     pub inline fn setGPUBlendConstants(gpurenderpass: *GPURenderPass, blend_constants: FColor)
    
    // The parser generates code that references these types,
    // but doesn't provide their definitions!
    
    try std.testing.expect(true);
}

test "what the parser SHOULD do" {
    // When parsing SDL_gpu.h, the parser should:
    //
    // 1. Detect that SDL_gpu.h includes other headers:
    //    #include <SDL3/SDL_video.h>
    //    #include <SDL3/SDL_rect.h>
    //    #include <SDL3/SDL_pixels.h>
    //    #include <SDL3/SDL_surface.h>
    //
    // 2. Scan generated declarations for types NOT defined in SDL_gpu.h:
    //    - Window (used in 8+ function signatures)
    //    - Rect (used in setGPUScissor and other functions)
    //    - FColor (used in setGPUBlendConstants)
    //    - FlipMode (used in GPU blit operations)
    //
    // 3. Parse those included headers to extract ONLY the needed types
    //
    // 4. Generate dependency modules:
    //    - video.zig (exports Window)
    //    - rect.zig (exports Rect)
    //    - pixels.zig (exports FColor)
    //    - surface.zig (exports FlipMode)
    //
    // 5. Add imports to gpu.zig:
    //    pub const Window = @import("video.zig").Window;
    //    pub const Rect = @import("rect.zig").Rect;
    //    pub const FColor = @import("pixels.zig").FColor;
    //    pub const FlipMode = @import("surface.zig").FlipMode;
    //
    // See DEPENDENCY_PLAN.md for full implementation details
    
    try std.testing.expect(true);
}