#pragma region License
/*
License (OLC-3)
~~~~~~~~~~~~~~~

Copyright 2024 Joshua Sigona <sigonasr2@gmail.com>

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

1. Redistributions or derivations of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

2. Redistributions or derivative works in binary form must reproduce the above
copyright notice. This list of conditions and the following	disclaimer must be
reproduced in the documentation and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors may
be used to endorse or promote products derived from this software without specific
prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	"AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE COPYRIGHT	HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL,	SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.

Portions of this software are copyright © 2024 The FreeType
Project (www.freetype.org). Please see LICENSE_FT.txt for more information.
All rights reserved.
*/
#pragma endregion
#include "AdventuresInLestoria.h"
#include "DEFINES.h"
#include "Menu.h"
#include "Unlock.h"
#include "ConnectionPoint.h"
#include "util.h"
#include "drawutil.h"
#include "MenuLabel.h"
#include "EncountersSpawnListScrollableWindowComponent.h"
#include "VisualNovel.h"
#include "State_OverworldMap.h"
#include "SaveFile.h"
#include "Audio.h"

INCLUDE_MONSTER_LIST
INCLUDE_game
INCLUDE_GFX

std::vector<ConnectionPoint>State_OverworldMap::connections;
ConnectionPoint*State_OverworldMap::currentConnectionPoint=nullptr;

State_OverworldMap::State_OverworldMap(){
	SetStageMarker("Stage I-I"); //Eventually we will load the game from a file and this will not be necessary. We just set it to this for now.
}
void State_OverworldMap::OnStateChange(GameState*prevState){
	Component<MenuComponent>(MenuType::PAUSE,"Return to Camp Button")->SetGrayedOut(false);
	SaveFile::SaveGame();
	game->LoadLevel("WORLD_MAP");
};
void State_OverworldMap::OnLevelLoad(){
	if(Menu::IsMenuOpen()){
		Menu::CloseAllMenus();
	}
	game->GetPlayer()->ForceSetPos(currentConnectionPoint->rect.pos+currentConnectionPoint->rect.size/2+vf2d{0,16});
	playerTargetPos=currentConnectionPoint->rect.pos+currentConnectionPoint->rect.size/2+vf2d{0,16};
	game->GetPlayer()->UpdateWalkingAnimation(DOWN);
	game->GetPlayer()->SetState(State::FORCE_WALK);
	game->GetPlayer()->SetSizeMult(1);
	game->camera.MoveCamera(currentConnectionPoint->rect.middle()+vf2d{game->GetScreenSize().x/6.0f,0});
	Component<MenuLabel>(OVERWORLD_LEVEL_SELECT,"Chapter Label")->SetLabel("Chapter "+std::to_string(game->GetCurrentChapter()));
	Component<MenuLabel>(OVERWORLD_LEVEL_SELECT,"Stage Label")->SetLabel(currentConnectionPoint->name);
	Component<EncountersSpawnListScrollableWindowComponent>(OVERWORLD_LEVEL_SELECT,"Spawns List")->UpdateSpawns(currentConnectionPoint->spawns);
	if(currentConnectionPoint->levelDataExists){
		Component<MenuComponent>(OVERWORLD_LEVEL_SELECT,"Enter Button")->Enable();
	}else{
		Component<MenuComponent>(OVERWORLD_LEVEL_SELECT,"Enter Button")->Disable();
	}
	Menu::OpenMenu(OVERWORLD_LEVEL_SELECT,false);
	game->UpdateDiscordStatus("Overworld Map",game->GetPlayer()->GetClassName());
}
void State_OverworldMap::OnUserUpdate(AiL*game){
	if(Menu::stack.size()>1)return;

	game->camera.SetTarget(currentConnectionPoint->rect.middle()+vf2d{game->GetScreenSize().x/6.0f,0});
	game->UpdateCamera(game->GetElapsedTime());
	game->GetPlayer()->Update(game->GetElapsedTime());

	if(game->GetKey(PGUP).bHeld){
		mosaicAmt+=game->GetElapsedTime()*10;
		game->SetMosaicEffect(uint8_t(mosaicAmt));
	}
	if(game->GetKey(PGDN).bHeld){
		mosaicAmt-=game->GetElapsedTime()*10;
		game->SetMosaicEffect(uint8_t(mosaicAmt));
	}

	if(game->GetPlayer()->GetPos()!=playerTargetPos){
		if(geom2d::line<float>(game->GetPlayer()->GetPos(),playerTargetPos).length()<2){
			game->GetPlayer()->SetPos(playerTargetPos);
		}else{
			game->GetPlayer()->SetPos(game->GetPlayer()->GetPos()+util::pointTo(game->GetPlayer()->GetPos(),playerTargetPos)*playerMoveSpd*game->GetElapsedTime());
		}
	}

	#pragma region Handle Connection Point Clicking and Movement
		for(ConnectionPoint&cp:connections){
			if(game->GetMouse(Mouse::LEFT).bPressed&&geom2d::overlaps(game->GetWorldMousePos(),cp.rect)
				||game->KEY_LEFT.Pressed()||game->KEY_RIGHT.Pressed()||game->KEY_UP.Pressed()||game->KEY_DOWN.Pressed()
				||(!analogMove&&(abs(game->KEY_SCROLLHORZ_L.Analog())>=0.2f||abs(game->KEY_SCROLLVERT_L.Analog())>=0.2f))){
				bool mouseUsed=game->GetMouse(Mouse::LEFT).bPressed&&geom2d::overlaps(game->GetWorldMousePos(),cp.rect);
				for(int directionInd=0;int neighborInd:currentConnectionPoint->neighbors){
					int targetDirection=-1;

					if(game->KEY_LEFT.Pressed()||game->KEY_SCROLLHORZ_L.Analog()<=-0.2f)targetDirection=ConnectionPoint::WEST;
					if(game->KEY_RIGHT.Pressed()||game->KEY_SCROLLHORZ_L.Analog()>=0.2f)targetDirection=ConnectionPoint::EAST;
					if(game->KEY_UP.Pressed()||game->KEY_SCROLLVERT_L.Analog()<=-0.2f)targetDirection=ConnectionPoint::NORTH;
					if(game->KEY_DOWN.Pressed()||game->KEY_SCROLLVERT_L.Analog()>=0.2f)targetDirection=ConnectionPoint::SOUTH;

					if(neighborInd==-1){
						directionInd++;
						continue;
					}

					ConnectionPoint&neighbor=ConnectionPointFromIndex(neighborInd);
					if(Unlock::IsUnlocked(neighbor.unlockCondition)&&&cp==&neighbor
						&&(mouseUsed||targetDirection==directionInd)){
						UpdateCurrentConnectionPoint(neighbor);
						playerTargetPos=currentConnectionPoint->rect.pos+currentConnectionPoint->rect.size/2+vf2d{0,16};
						float angleTo=util::angleTo(game->GetPlayer()->GetPos(),playerTargetPos);
						if(angleTo>=-3*PI/4&&angleTo<-PI/4){
							game->GetPlayer()->UpdateWalkingAnimation(UP);
						}else
						if(angleTo<PI/4&&angleTo>=-PI/4){
							game->GetPlayer()->UpdateWalkingAnimation(RIGHT);
						}else
						if(angleTo>=PI/4&&angleTo<3*PI/4){
							game->GetPlayer()->UpdateWalkingAnimation(DOWN);
						}else{
							game->GetPlayer()->UpdateWalkingAnimation(LEFT);
						}
						if(abs(game->KEY_SCROLLHORZ_L.Analog())>=0.2f||abs(game->KEY_SCROLLVERT_L.Analog()>=0.2f))analogMove=true;
						goto doneNavigating;
					}
					directionInd++;
				}
			}
		}
	#pragma endregion
	doneNavigating:
	if(abs(game->KEY_SCROLLVERT_L.Analog())<0.2f&&abs(game->KEY_SCROLLHORZ_L.Analog())<0.2f){
		analogMove=false;
	}
};
void State_OverworldMap::Draw(AiL*game){
	currentTime+=game->GetElapsedTime();
	for(ConnectionPoint&cp:connections){
		if(!Unlock::IsUnlocked(cp)){
			game->view.FillRectDecal(cp.rect.pos,cp.rect.size,{0,0,0,128});
		}else{
			float exclamationScale=fmod(game->GetRuntime(),1.0f)<0.2f?1.f:1.2f;
			if(!cp.Visited()){
				game->view.DrawDecal(cp.rect.pos+vf2d{-1.f,0.f},GFX["exclamation.png"].Decal(),{exclamationScale,exclamationScale},BLACK);
				game->view.DrawDecal(cp.rect.pos+vf2d{-1.f,-1.f},GFX["exclamation.png"].Decal(),{exclamationScale,exclamationScale});
			}
		}
	}
	for(ConnectionPoint&cp:connections){
		if(Unlock::IsUnlocked(cp)&&geom2d::overlaps(game->GetWorldMousePos(),cp.rect)&&(&cp==currentConnectionPoint||cp.IsNeighbor(*currentConnectionPoint))){
			drawutil::DrawCrosshairDecalTransformedView(game->view,cp.rect,currentTime);
			break;
		}
	}
	
	//In radians.
	using AngleTotal=float;
	using Count=uint8_t;
	using MedianAngle=std::pair<AngleTotal,Count>;
	using ConnectionPointIndex=int;

	auto GetAngle=[](MedianAngle angle){
		return angle.first/angle.second;
	};

	std::map<ConnectionPointIndex,MedianAngle>neighbors;

	for(int direction=0;int index:currentConnectionPoint->neighbors){
		if(index!=-1){
			ConnectionPoint&neighbor=connections[index];
			if(!Unlock::IsUnlocked(neighbor)){
				direction++;	
				continue;
			}

			float arrowAngle=direction*0.5f*PI-0.5f*PI;
			if(neighbors.count(index)){
				if(arrowAngle==0.f)neighbors[index].first+=2*PI;
				neighbors[index].first+=circ_add(0,2*PI+arrowAngle,0,2*PI);
				neighbors[index].second++;
			}else{
				neighbors[index]={circ_add(0,arrowAngle,0,2*PI),1};
			}
		}
		direction++;
	}

	float arrowDist=fmod(game->GetRuntime(),1.0f)<0.5f?14:18;

	for(auto&[index,medianAngle]:neighbors){
		game->view.DrawRotatedDecal(game->GetPlayer()->GetPos()+vf2d{arrowDist,GetAngle(medianAngle)}.cart()+vf2d{0.f,1.f},GFX["overworld_arrow.png"].Decal(),GetAngle(medianAngle),GFX["overworld_arrow.png"].Sprite()->Size()/2,{1.f,1.f},{0,0,0});
		game->view.DrawRotatedDecal(game->GetPlayer()->GetPos()+vf2d{arrowDist,GetAngle(medianAngle)}.cart(),GFX["overworld_arrow.png"].Decal(),GetAngle(medianAngle),GFX["overworld_arrow.png"].Sprite()->Size()/2,{1.f,1.f},{199,48,55});
	}
};
void State_OverworldMap::DrawOverlay(AiL*game){}
void State_OverworldMap::SetStageMarker(std::string connectionName){
	for(ConnectionPoint&connection:connections){
		if(connection.name==connectionName){
			currentConnectionPoint=&connection;
			return;
		}
	}
	ERR("WARNING! Could not find a connection point with name "<<connectionName<<"!");
}

ConnectionPoint&State_OverworldMap::ConnectionPointFromIndex(int ind){
	return connections.at(ind);
}

ConnectionPoint&State_OverworldMap::GetCurrentConnectionPoint(){
	return *((State_OverworldMap*)(GameState::states.at(States::OVERWORLD_MAP)))->currentConnectionPoint;
}

void State_OverworldMap::StartLevel(){
	game->UpdateDiscordStatus(State_OverworldMap::GetCurrentConnectionPoint().name,game->GetPlayer()->GetClassName());
	SaveFile::SaveGame();
	State_OverworldMap::GetCurrentConnectionPoint().SetVisited();
	if(State_OverworldMap::GetCurrentConnectionPoint().type.starts_with("STORY")){
		VisualNovel::LoadVisualNovel(State_OverworldMap::GetCurrentConnectionPoint().map);
	}else
	if(State_OverworldMap::GetCurrentConnectionPoint().type.starts_with("HUB")){
		GameState::ChangeState(States::GAME_HUB,0.3f);
	}else{
		GameState::ChangeState(States::GAME_RUN,0.3f);
	}
}



void State_OverworldMap::UpdateCurrentConnectionPoint(const ConnectionPoint&connection){
	currentConnectionPoint=const_cast<ConnectionPoint*>(&connection);
	Component<MenuLabel>(OVERWORLD_LEVEL_SELECT,"Stage Label")->SetLabel(currentConnectionPoint->name);
	Component<EncountersSpawnListScrollableWindowComponent>(OVERWORLD_LEVEL_SELECT,"Spawns List")->UpdateSpawns(currentConnectionPoint->spawns);
	if(currentConnectionPoint->levelDataExists){
		Component<MenuComponent>(OVERWORLD_LEVEL_SELECT,"Enter Button")->Enable();
	}else{
		Component<MenuComponent>(OVERWORLD_LEVEL_SELECT,"Enter Button")->Disable();
	}
	if(currentConnectionPoint->levelDataExists&&!(currentConnectionPoint->type=="STORY"||currentConnectionPoint->type=="SHOP")){
		Component<MenuComponent>(OVERWORLD_LEVEL_SELECT,"Change Loadout Button")->Enable();
	}else{
		Component<MenuComponent>(OVERWORLD_LEVEL_SELECT,"Change Loadout Button")->Disable();
	}
}

std::optional<ConnectionPoint*>State_OverworldMap::ConnectionPointFromString(std::string_view mapName){
	auto foundItem=std::find_if(connections.begin(),connections.end(),[&](ConnectionPoint&cp){return cp.map==mapName;});
	if(foundItem!=connections.end())return &*foundItem;
	return {};
}

void State_OverworldMap::ResetConnectionPoints(){
	for(ConnectionPoint&cp:connections){
		cp.visited=false;
	}
}