allocator: std.mem.Allocator,

moveInput: *core.Axis2dBinding = undefined,

cameraSpeed: f32 = 10.0,
moveVector: core.Vectorf = .{},
mouseMove: core.Vector2f = .{},
verticalMove: f32 = 0.0,

centerDist: f32 = 2.0,
centerDistMove: f32 = 2.0,

mouseLook: bool = true,
showWindow: bool = true,

fpcamera: *FpCamera = undefined,

videoplayer: *VideoPlayer = undefined,
doomplayer: *DoomPlayer = undefined,
videoplayerObject: core.Entity = undefined,
doomplayerObject: core.Entity = undefined,

pub var NeonObjectTable: core.EngineObjectVTable = core.EngineObjectVTable.from(@This());

pub fn init(allocator: std.mem.Allocator) !*@This() {
    const self = try allocator.create(@This());
    self.* = .{
        .allocator = allocator,
    };
    return self;
}

const assetReferences = [_]assets.AssetImportReference{
    assets.MakeImportRefOptions(
        "Mesh",
        "m_empire",
        .{ .path = "meshes/lost_empire.obj" },
    ),
    assets.MakeImportRefOptions(
        "Mesh",
        "m_skybox",
        .{ .path = "meshes/skybox.obj" },
    ),
    // assets.MakeImportRefOptions(
    //     "Mesh",
    //     "m_fox",
    //     .{ .path = "gltf-samples/Fox/glTF/Fox.gltf" },
    // ),
    // assets.MakeImportRefOptions(
    //     "Texture",
    //     "t_fox",
    //     .{ .path = "gltf-samples/Fox/glTF/Texture.png" },
    // ),
    assets.MakeImportRefOptions(
        "Texture",
        "t_empire",
        .{ .path = "textures/lost_empire-RGBA.png" },
    ),
    // assets.MakeImportRefOptions(
    //     "Texture",
    //     "t_skybox",
    //     .{
    //         .textureCube = true,
    //         .textureList = &.{
    //             "sky_air/cube_right.png", // cubemapfacePositivex, right
    //             "sky_air/cube_left.png", // cubemapfacePositivex, right
    //             "sky_air/cube_up.png", // cubemapfacePositivex, right
    //             "sky_air/cube_down.png", // cubemapfacePositivex, right
    //             "sky_air/cube_back.png", // cubemapfacePositivex, right
    //             "sky_air/cube_front.png", // cubemapfacePositivex, right
    //         },
    //     },
    // ),
};

pub fn prepare(self: *@This()) !void {
    core.engine_log(">>>>>>> game prepare", .{});
    var z = core.tracy.ZoneN(@src(), "PREPARING GAME");
    defer z.End();
    try core.fs().addContentPath("sampleGame");
    try script.loadTypes("scripts");
    try script.runScriptFile("scripts/prepare.lua");

    try assets.loadList(assetReferences);
    self.videoplayer = try VideoPlayer.create(self.allocator);
    try self.videoplayer.startPlayback("LAPWING2.ogv");
    self.videoplayerObject = try self.videoplayer.createVideoPlayerEntity();

    self.doomplayer = try DoomPlayer.create(self.allocator);
    self.doomplayerObject = try self.doomplayer.createEntity();

    // rend.setSkyboxTexture("t_skybox");

    const exitInput = try core.ActionBinding.create(core.MakeName("exit"));
    exitInput.addKey(.escape, .keyDown);
    _ = exitInput.data.addListener(null, onExit);
    exitInput.activate();

    {
        const inp = try core.ActionBinding.create(core.MakeName("slow"));
        inp.addKey(.lshift, .keyDown);
        inp.addKey(.lshift, .keyUp);
        _ = inp.data.addListener(self, slowDown);
        inp.activate();
    }

    self.fpcamera = try FpCamera.create(self.allocator);
    self.fpcamera.setPosition(.{ .z = 15 });
    self.fpcamera.activateCamera();

    {
        core.engine_log("creating empire", .{});

        const lostEmpire = try core.createEntity();
        const scene = lostEmpire.addComponent(core.Scene).?;
        scene.setPosition(.{ .y = -20 });
        const empireMesh = lostEmpire.addComponent(rend.MeshComponent).?;
        empireMesh.setMesh("m_empire");
        empireMesh.setTexture("t_empire");
    }

    {
        // const fox = try core.createEntity();
        // const scene = fox.addComponent(core.Scene).?;
        // _ = scene;
        // // scene.setScale();
        // const mesh = fox.addComponent(rend.MeshComponent).?;
        // mesh.setMesh("m_fox");
        // mesh.setTexture("t_fox");
    }

    {
        // const lightbox = try core.createEntity();
        // const scene = lightbox.addComponent(core.Scene).?;
        // scene.setPosition(.{ .z = 20 });
        // scene.setScale(0.1, 0.1, 0.1);
        // const mesh = lightbox.addComponent(rend.MeshComponent).?;
        // mesh.setMesh("m_default_cube");
        // mesh.setTexture("t_default");
    }

    const moveInput = try core.Axis2dBinding.create(core.MakeName("movement"));

    moveInput.addKey(.w, 1.0, .y);
    moveInput.addKey(.s, -1.0, .y);
    moveInput.addKey(.d, 1.0, .x);
    moveInput.addKey(.a, -1.0, .x);

    _ = moveInput.data.addListener(self, onMove);
    moveInput.activate();

    {
        const i = try core.Axis1dBinding.create(core.MakeName("rotPitch"));
        i.addKey(.f, 1.0);
        i.addKey(.v, -1.0);

        _ = i.data.addListener(self, distanceMove);
        i.activate();
    }

    {
        const verticalInput = try core.Axis1dBinding.create(core.MakeName("movementVertical"));
        verticalInput.addKey(.e, 1.0);
        verticalInput.addKey(.q, -1.0);

        _ = verticalInput.data.addListener(self, verticalMovement);
        verticalInput.activate();
    }

    {
        const mouseLook = try core.Axis2dBinding.create(core.MakeName("mouseLook"));
        mouseLook.enableMouseRelative();
        _ = mouseLook.data.addListener(self, onMouseLook);
        mouseLook.activate();
    }

    {
        const shaderReload = try core.ActionBinding.create(core.MakeName("shaderReload"));
        shaderReload.addKey(.r, .keyDown);
        _ = shaderReload.data.addListener(self, onShaderReload);
        shaderReload.activate();
    }

    {
        const input = try core.ActionBinding.create(core.MakeName("toggleMouseLook"));
        input.addKey(.t, .keyDown);
        _ = input.data.addListener(self, toggleMouseLook);
        input.activate();
    }
    self.updateMouseLook();
}

fn onMouseLook(ctx: ?*anyopaque, axis: core.Vector2f) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));

    self.fpcamera.addMouseMovement(axis);
}

fn toggleMouseLook(ctx: ?*anyopaque, action: core.ActionEvent) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));
    _ = action;

    self.mouseLook = !self.mouseLook;
    if (!self.mouseLook)
        self.showWindow = true;

    self.updateMouseLook();
}

fn updateMouseLook(self: *@This()) void {
    self.fpcamera.mouseLookEnabled = self.mouseLook;
    platform.setMouseRelativeMode(self.mouseLook);
    // platform.setImguiVisible(!self.mouseLook);
}

fn onShaderReload(ctx: ?*anyopaque, action: core.ActionEvent) void {
    _ = ctx;
    _ = action;

    core.engine_log("reloading shaders, this is gonna cause some leaks but thats ok", .{});
    rend.renderer.reloadShaders() catch unreachable;
}

fn slowDown(ctx: ?*anyopaque, action: core.ActionEvent) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));

    if (action == .keyUp) {
        self.cameraSpeed = 10.0;
    }
    if (action == .keyDown) {
        self.cameraSpeed = 4.0;
    }
}

fn distanceMove(ctx: ?*anyopaque, axis: f32) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));
    self.centerDistMove = axis;
}

fn cameraRotate(ctx: ?*anyopaque, axis: f32) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));
    self.rotateAxis = axis;
}

fn verticalMovement(ctx: ?*anyopaque, axis: f32) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));
    self.verticalMove = axis;
}

fn onMove(ctx: ?*anyopaque, axis: core.Vector2f) void {
    const self: *@This() = @ptrCast(@alignCast(ctx));
    self.moveVector = .{ .x = axis.x, .z = axis.y, .y = 0.0 };
}

pub fn onExit(ctx: ?*anyopaque, action: core.ActionEvent) void {
    _ = ctx;
    _ = action;

    core.exitNow();
}

pub fn getMouseMovement(self: *@This()) core.Vector2f {
    const rv = self.mouseMove;
    self.mouseMove = .{};

    return rv;
}

pub fn tick(self: *@This(), dt: f64) void {
    const fdt: f32 = @floatCast(dt);

    self.videoplayer.tick(dt);
    self.doomplayer.tick(dt);
    self.fpcamera.tick(dt);

    var movement = self.fpcamera.getForwardXZ().fmul(self.moveVector.z * fdt * self.cameraSpeed);
    movement = movement.add(self.fpcamera.getRightXZ().fmul(self.moveVector.x * fdt * self.cameraSpeed));
    movement = movement.add(.{ .y = self.verticalMove * fdt * self.cameraSpeed });
    const pos = self.fpcamera.getPosition().add(movement);
    self.fpcamera.setPosition(pos);
    self.centerDist += self.centerDistMove * fdt;

    self.fpcamera.resolve();

    const forward = self.fpcamera.getForward();
    const debugCenter = self.fpcamera.getPosition().add(forward.fmul(self.centerDist));

    core.debugSphere(debugCenter, 0.3, .{});
    core.debugSphere(debugCenter, 0.1, .{ .color = .{ .x = 1.0 } });

    rend.context().lightPosition = debugCenter;

    // show a window with the current camera's position

    if (ig.begin("meh", &self.showWindow, .{})) {
        ig.textFmt("x:{d:.03} y:{d:.03} z:{d:.03}", .{ pos.x, pos.y, pos.z }) catch return;
        ig.end();
    }
}

pub fn deinit(self: *@This()) void {
    self.doomplayer.destroy();
    self.fpcamera.destroy();

    self.videoplayer.destroy();
    self.allocator.destroy(self);
}

pub fn main() anyerror!void {
    try backlog.initializeAndRunStandardProgram(@This(), .{
        .name = "SampleGame",
        .enabledModules = .{
            .imgui = true,
            .physics = true,
        },
    });
}

const DoomPlayer = @import("doomplayer");
const VideoPlayer = @import("videoplayer");
const FpCamera = @import("gameExtras").FpCamera;
const std = @import("std");
const backlog = @import("Backlog");
const assets = backlog.assets;
const platform = backlog.platform;
const core = backlog.core;
const ig = backlog.imgui.api;
const rend = backlog.rend;
const script = core.script;