package gameplay.match;

import engine.input.Button;
import engine.input.GamepadInput;
import gameplay.actions.Attack;
import gameplay.entities.Status;
import gameplay.input.InputBuffer;
import gameplay.entities.Character;
import gameplay.input.Inputs;
import gameplay.input.ButtonIG;

import static org.lwjgl.glfw.GLFW.*;

/**
 * Main class that describes the base structure of the match, with characters, timer and such
 * @author Victor Azra
 *
 */
public class match {
	
	/**
	 * the number of inputs read for each character, a.k.a. for how many frames the inputs are saved in memory. 
	 */
	private static final int inputBufferSize = 120;
	
	private int timer; 
	private InputBuffer inputsP1, inputsP2;
	private int hpP1, hpP2;
	private int roundsWonP1, roundsWonP2;
	private Character p1, p2; //characters of player 1 and 2

	private static long timeStamp1;
	private static long timeStamp2;
	private static int frameCount;
	private static GamepadInput gamepad1 = null;
	private static GamepadInput gamepad2 = null;
	
	/**
	 * base constructor of the match class. 
	 * Initiates a new match with with two given characters
	 */
	public match(Character p1, Character p2) {
		this.timer = 99;
		this.inputsP1 = new InputBuffer(inputBufferSize);
		this.inputsP2 = new InputBuffer(inputBufferSize);
		this.p1 = p1;
		this.p2 = p2;
		this.hpP1 = p1.getMaxHP(); 
		this.hpP2 = p2.getMaxHP();
		this.roundsWonP1 = 0;
		this.roundsWonP2 = 0;
	}

	/**
	 * Starts a new round, by placing the timer back at base value, characters back at full hp and such.
	 */
	private void startNewRound() {
		this.timer = 99;
		this.inputsP1 = new InputBuffer(inputBufferSize);
		this.inputsP2 = new InputBuffer(inputBufferSize);
		this.hpP1 = p1.getMaxHP();
		this.hpP2 = p2.getMaxHP();
		this.p1.setPos(-500, 250); //TODO : change to better values if needed
		this.p2.setPos(500, 250); //TODO : change to better values if needed
	}

	/**
	 * Ends the round.
	 * Used for playing animations and such.
	 * TODO : Implement this once we know what to do.
	 */
	private void endRound() {

	}

	/**
	 * Ends the match.
	 * Used for playing animations and such.
	 * TODO : Implement this once we know what to do.
	 */
	private void endMatch() {

	}

	public static void main(String[] args) throws Exception {
		/*
		Engine engine = new Engine(800, 600, 3.0f / 4.0f);
		engine.init();

		String path = "textures/zangief_sprite.png";

		ObjectGl zangief = new ObjectGl(0f, 60f, 80f, 10f, path, null);
		zangief.setTextureWrap(58, 0, 62, 84, ObjectGl.STICK_TOP);
		engine.add_objectGl(zangief);

		long timer = System.currentTimeMillis();
		long lastFrame;
		int frame = 0;
		boolean nextFrame = false;
		boolean Joystick1Present = glfwJoystickPresent(GLFW_JOYSTICK_1);

		GamepadInput gamepad1 = null;
		ButtonIG jump = null;

		if (Joystick1Present) {
			gamepad1 = new GamepadInput(GLFW_JOYSTICK_1);
			gamepad1.inputRefresh();
			List<Integer> listJump = new ArrayList<>();
			listJump.add(InputConst.buttonA);
			jump = new ButtonIG("jump", listJump, gamepad1);
		}

		while (engine.isRunning()) {
			lastFrame = System.currentTimeMillis();
			// Game logic should fit here

			if (Joystick1Present) {
				gamepad1.inputRefresh();

				System.out.println(gamepad1.getAxisDiscreet(GLFW_GAMEPAD_AXIS_LEFT_X));

				// Check si le personnage a sauté
				if (jump.isButtonPressed()) {
					// Le personnage saute
					System.out.println(" JE SAUTE ");
				}
			}

			engine.update();
			engine.render();

			frame++;

			if (System.currentTimeMillis() - timer > 1000) {
				timer += 1000;
				System.out.println("FPS: " + frame);
				frame = 0;
			}

			while (!nextFrame) {
				nextFrame = System.currentTimeMillis() - lastFrame >= 16.66f;
			}

			nextFrame = false;
			if (engine.shouldClose()) engine.setRunning(false);
		} */
		int frame = 0;
		boolean goToNextFrame = true;
		boolean Joystick1Present = glfwJoystickPresent(GLFW_JOYSTICK_1);
		boolean Joystick2Present = glfwJoystickPresent(GLFW_JOYSTICK_2);
		match match = new match(new Character(),new Character()); //TOD0 : Change to not empty chars

		if (Joystick1Present) {
			gamepad1 = new GamepadInput(GLFW_JOYSTICK_1);
			gamepad1.inputRefresh();
		}
		if(Joystick2Present) {
			gamepad2 = new GamepadInput(GLFW_JOYSTICK_2);
			gamepad2.inputRefresh();
		}

	}

	private void ac(int i) {
		switch (i) {

			//initiate a round
			case 0 :
				startNewRound();
				timeStamp1 = System.currentTimeMillis();
				frameCount = 0;
				ac(10);
				break;

				//checks if one or both of the chars are out of health
			case 10:
				if(this.hpP1 <= 0 && hpP2 <= 0) { ac(11);}
				else if(this.hpP1 <= 0) { ac(12);}
				else if(this.hpP2 <= 0) { ac(13);}
				else { ac(20);}
				break;

				//end round
			case 11:
				endRound();
				if(roundsWonP1 >= 2||roundsWonP2 >= 2) { endMatch();} //TODO : will probably need to specify more
				else{ac(0);}
				break;

				//if p1 is at 0 health
			case 12:
				roundsWonP2++;
				ac(11);
				break;

				//if p2 is at 0 health
			case 13:
				roundsWonP1++;
				ac(11);
				break;

				//read both players inputs
			case 20:
				gamepad1.inputRefresh();
				gamepad2.inputRefresh();
				inputsP1.recordInputsFromGamepad(gamepad1, p1.getPosX() < p2.getPosX());
				inputsP2.recordInputsFromGamepad(gamepad2, p2.getPosX() <= p1.getPosX());
				handleInputs(p1, inputsP1);
				handleInputs(p2, inputsP2);
		}
	}

	/**
	 * Will handle the inputs recorder and have the character do a corresponding action if possible
	 * Order of priority is Throw > Special > Normal > Jump > Dash > Crouch > Move > do nothing
	 * @param c
	 * @param input
	 */
	private static void handleInputs(Character c, InputBuffer input) {
		Inputs latestIn = input.getLatestInputs();
		boolean actionSet = false;
		if(latestIn.containsButtonTab(c.getNormalthrow().getCommand()[0]) && c.getCurrentframe().isNormalCancellable()) {
			c.clearNextFrames();
			c.addNextFramesList(c.getNormalthrow().getFrame());
			actionSet = true;
		} else {
			int atkCount = 0;
			//do an attack if possible
			while(atkCount < c.getAttacks().length && !actionSet) {
				Attack atk = c.getAttacks()[atkCount];
				Boolean attackIsPossible = input.commandRecognized(atk.getCommand())
						&& atk.getRequiredStatus().equals(c.getStatus())
						&& ((atk.isSpecial() && c.getCurrentframe().isSpecialCancellable())
							|| (!atk.isSpecial() && c.getCurrentframe().isNormalCancellable()));
				if(attackIsPossible) {
					c.clearNextFrames();
					c.addNextFramesList(atk.getFrame());
					actionSet = true;
				}
				atkCount++;
			}
			if(c.getCurrentframe().isJumpCancellable() && !actionSet) {
				if (input.commandRecognized(c.getForwardJump().getCommand())) {
					c.clearNextFrames();
					c.addNextFramesList(c.getForwardJump().getFrame());
					actionSet = true;
					c.setStatus(Status.JUMPING);
				} else if (input.commandRecognized(c.getBackJump().getCommand())) {
					c.clearNextFrames();
					c.addNextFramesList(c.getForwardJump().getFrame());
					actionSet = true;
					c.setStatus(Status.JUMPING);
				} else if (input.commandRecognized(c.getNeutralJump().getCommand())) {
					c.clearNextFrames();
					c.addNextFramesList(c.getNeutralJump().getFrame());
					actionSet = true;
					c.setStatus(Status.JUMPING);
				}
			}
			if(c.getCurrentframe().isDashCancellable() && !actionSet) {
				if (input.commandRecognized(c.getForwardDash().getCommand())) {
					c.clearNextFrames();
					c.addNextFramesList(c.getForwardDash().getFrame());
					actionSet = true;
				} else if (input.commandRecognized(c.getBackDash().getCommand())) {
					c.clearNextFrames();
					c.addNextFramesList(c.getBackDash().getFrame());
					actionSet = true;
				}
			}
			if(c.getCurrentframe().isMoveCancellable() && !actionSet) {
				if(input.getLatestInputs().containsInput(ButtonIG.DOWN)) {
					c.clearNextFrames();
					c.addNextFrames(c.getDefaultCrouchingFrames());
				} else if(input.getLatestInputs().containsInput(ButtonIG.BACK)) {
					c.clearNextFrames();
					c.addNextFrames(c.getBackWalkFrames());
				} if(input.getLatestInputs().containsInput(ButtonIG.FORWARD)) {
					c.clearNextFrames();
					c.addNextFrames(c.getForwardWalkFrames());
				}
			}

		}


	}
}