const std = @import("std");
const c = @import("c.zig");
const window = @import("rendering/window.zig");

const config = @import("config");
const Renderer = @import("rendering/renderer_vulkan.zig");
const math = @import("math.zig");
const mods = @import("mods");
const ecs = @import("ecs");
const gltf = @import("rendering/gltf.zig");

fn testSystem2(pool: *ecs.Pool) void {
    for (pool.getQuery(ecs.components.Position), 0..) |position, i| {
        const entity = pool.getEntity(i, ecs.components.Position);
        if (pool.getComponent(entity, ecs.components.Speed)) |speed| {
            std.debug.print("entity{d}: {any},{any},{any} {any}\n", .{ i, position.x, position.y, position.z, speed.speed });
        }
    }
}

pub fn main() !void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    const allocator = gpa.allocator();
    {
        //var global_runtime = wasm.GlobalRuntime.init(allocator);
        //defer global_runtime.deinit();
        //try global_runtime.addFunction("debug", wasm.debug);

        // const file = try std.fs.cwd().openFile("assets/core.wasm", .{});
        // const all = try file.readToEndAlloc(allocator, 1_000_000); // 1 MB
        // var parser = mods.Parser{
        //     .bytes = all,
        //     .byte_idx = 0,
        //     .allocator = allocator,
        // };
        // const module = parser.parseModule() catch |err| {
        //     std.debug.print("[ERROR]: error at byte {x}(0x{x})\n", .{ parser.byte_idx, parser.bytes[parser.byte_idx] });
        //     return err;
        // };
        // var runtime = try vm.Runtime.init(allocator, module, &global_runtime);
        // defer runtime.deinit(allocator);

        //var parameters = [_]usize{};
        //try runtime.callExternal(allocator, "preinit", &parameters);
        const w = try window.Window.create(800, 600, "sideros");
        defer w.destroy();

        //var pool = try ecs.Pool.init(allocator);
        //defer pool.deinit(allocator);

        ////try pool.addSystemGroup(&[_]entities.System{
        ////    testSystem,
        ////});
        //try pool.addSystemGroup(&[_]ecs.System{
        //    testSystem2,
        //});

        //for (0..1000) |_| {
        //    const entity = try pool.createEntity();
        //    try pool.addComponent(entity, ecs.components.Position{ .x = 1.0, .y = 0.5, .z = 3.0 });
        //    try pool.addComponent(entity, ecs.components.Speed{ .speed = 5.0 });
        //}

        // TODO(luccie-cmd): Renderer.create shouldn't return an error
        var r = try Renderer.create(allocator, w);
        defer r.destroy();

        while (!w.shouldClose()) {
            c.glfwPollEvents();
            try r.tick();
            //pool.tick();
        }
    }

    if (gpa.detectLeaks()) {
        return error.leaked_memory;
    }
}