"use strict";

const DebugControls = (function(){

    const DebugControls = function(hollow_bond){

        const self = this, 
              euler = new THREE.Euler(0, 0, 0, "YXZ"), 
              keys = {
                  forward : false, 
                  backward : false, 
                  left : false, 
                  right : false, 
                  up : false, 
                  down : false
              };
        let is_pointer_locked = false;

        this.setup = inspector => {

            const canvas = inspector.renderer.domElement;

            canvas.addEventListener("click", () => canvas.requestPointerLock());
            document.addEventListener("pointerlockchange", () => {
                is_pointer_locked = (document.pointerLockElement === canvas);
            });

            document.addEventListener("mousemove", evt => {
                if(!is_pointer_locked) return;
                euler.setFromQuaternion(inspector.camera.quaternion);
                euler.y -= evt.movementX * 0.002;
                euler.x -= evt.movementY * 0.002;
                euler.x = Math.max(-Math.PI / 2, Math.min(Math.PI / 2, euler.x));
                inspector.camera.quaternion.setFromEuler(euler);
            });

            window.addEventListener("keydown", evt => {
                // Teclas de movimiento
                switch(evt.code){
                    case "KeyW":
                    case "ArrowUp":
                        keys.forward = true;
                    break;
                    case "KeyS":
                    case "ArrowDown":
                        keys.backward = true;
                    break;
                    case "KeyA":
                    case "ArrowLeft":
                        keys.left = true;
                    break;
                    case "KeyD":
                    case "ArrowRight":
                        keys.right = true;
                    break;
                    case "Space":
                        keys.up = true;
                    break;
                    case "ShiftLeft":
                    case "ShiftRight":
                    case "KeyC":
                        keys.down = true;
                    break;
                    // Cambio de estrato con Q y E
                    case "KeyE":
                        inspector.set_floor(inspector.current_floor + 1);
                    break;
                    case "KeyQ":
                        inspector.set_floor(inspector.current_floor - 1);
                    break;
                    // Rango de capas con las teclas numéricas 1 a 5
                    case "Digit0":
                        inspector.vertical_layers_range = 0;
                        inspector.update_layer_visibility();
                        inspector.update_hud();
                    break;
                    case "Digit1":
                        inspector.vertical_layers_range = 1;
                        inspector.update_layer_visibility();
                        inspector.update_hud();
                    break;
                    case "Digit2":
                        inspector.vertical_layers_range = 2;
                        inspector.update_layer_visibility();
                        inspector.update_hud();
                    break;
                    case "Digit3":
                        inspector.vertical_layers_range = 3;
                        inspector.update_layer_visibility();
                        inspector.update_hud();
                    break;
                    case "Digit4":
                        inspector.vertical_layers_range = 4;
                        inspector.update_layer_visibility();
                        inspector.update_hud();
                    break;
                };
            });

            window.addEventListener("keyup", evt => {
                switch(evt.code){
                    case "KeyW":
                    case "ArrowUp":
                        keys.forward = false;
                    break;
                    case "KeyS":
                    case "ArrowDown":
                        keys.backward = false;
                    break;
                    case "KeyA":
                    case "ArrowLeft":
                        keys.left = false;
                    break;
                    case "KeyD":
                    case "ArrowRight":
                        keys.right = false;
                    break;
                    case "Space":
                        keys.up = false;
                    break;
                    case "ShiftLeft":
                    case "ShiftRight":
                    case "KeyC":
                        keys.down = false;
                    break;
                };
            });
        };

        this.update_movement = (inspector, delta) => {
            if(!is_pointer_locked)
                return;

            const movement = new THREE.Vector3();

            if(keys.forward)
                movement.z --;
            if(keys.backward)
                movement.z ++;
            if(keys.left)
                movement.x --;
            if(keys.right)
                movement.x ++;

            if(movement.lengthSq() > 0){
                movement.normalize();
                movement.applyQuaternion(inspector.camera.quaternion);
            };

            if(keys.up)
                movement.y ++;
            if(keys.down)
                movement.y --;

            inspector.camera.position.addScaledVector(movement, 25 * delta);
        };

    };

    return DebugControls;
})();