/*
Copyright (C) 2018 Parallel Realities

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#include "trophies.h"

static void setSparkleColor(Trophy *t);
static void loadTrophyData(void);
static void resetAlert(void);
static void nextAlert(void);

static int numTrophies;
static SDL_Rect alertRect;
static int alertTimer;
static Trophy *alertTrophy;
static float sparkleAngle;
static Atlas *trophyIcons[TROPHY_MAX];
static Atlas *sparkle;
static Atlas *alertSphere;
static Texture *atlasTexture;
static int awarded;
static Atlas *left;
static Atlas *right;
static int page;
static float maxPages;
static int savedScreenshot;

void initTrophies(void)
{
	atlasTexture = getTexture("gfx/atlas/atlas.png");

	trophyIcons[TROPHY_BRONZE] = getImageFromAtlas("gfx/trophies/bronze.png");
	trophyIcons[TROPHY_SILVER] = getImageFromAtlas("gfx/trophies/silver.png");
	trophyIcons[TROPHY_GOLD] = getImageFromAtlas("gfx/trophies/gold.png");
	trophyIcons[TROPHY_PLATINUM] = getImageFromAtlas("gfx/trophies/platinum.png");
	trophyIcons[TROPHY_UNEARNED] = getImageFromAtlas("gfx/trophies/unearned.png");
	sparkle = getImageFromAtlas("gfx/trophies/sparkle.png");
	alertSphere = getImageFromAtlas("gfx/trophies/alertSphere.png");
	left = getImageFromAtlas("gfx/ui/left.png");
	right = getImageFromAtlas("gfx/ui/right.png");
	
	alertRect.h = 90;
	alertRect.y = 10;

	numTrophies = 0;

	awarded = 0;
	
	sparkleAngle = 0;
	
	savedScreenshot = 0;
	
	page = 0;
	
	maxPages = STAT_TIME_PLAYED;
	maxPages /= TROPHIES_PER_PAGE;
	maxPages = ceil(maxPages);

	loadTrophyData();
	
	resetAlert();
}

void doTrophies(void)
{
	if (isControl(CONTROL_LEFT) || app.keyboard[SDL_SCANCODE_LEFT])
	{
		page = limit(page - 1, 0, maxPages - 1);
		app.keyboard[SDL_SCANCODE_LEFT] = 0;
		clearControl(CONTROL_LEFT);
	}

	if (isControl(CONTROL_RIGHT) || app.keyboard[SDL_SCANCODE_RIGHT])
	{
		page = limit(page + 1, 0, maxPages - 1);
		app.keyboard[SDL_SCANCODE_RIGHT] = 0;
		clearControl(CONTROL_RIGHT);
	}
	
	doWidgets();
}

void drawTrophies(void)
{
	Trophy *t;
	SDL_Rect r;
	int start, end, i, x, y;
	
	drawRect(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0, 128);
	
	r.w = 600;
	r.h = 650;
	r.x = (SCREEN_WIDTH / 2) - r.w / 2;
	r.y = (SCREEN_HEIGHT / 2) - r.h / 2;
	
	r.y += 15;
	
	drawRect(r.x, r.y, r.w, r.h, 0, 0, 0, 192);
	
	drawOutlineRect(r.x, r.y, r.w, r.h, 200, 200, 200, 255);
	
	drawText(SCREEN_WIDTH / 2, 60, 28, TA_CENTER, colors.white, "Trophies");
	
	drawText(SCREEN_WIDTH / 2, 100, 16, TA_CENTER, colors.lightGrey, "Page %d / %d", page + 1, (int)maxPages);
	
	if (page > 0)
	{
		blitRect(atlasTexture->texture, SCREEN_WIDTH / 2 - 100, 110, &left->rect, 1);
	}
	
	if (page < maxPages - 1)
	{
		blitRect(atlasTexture->texture, SCREEN_WIDTH / 2 + 100, 110, &right->rect, 1);
	}
	
	x = r.x + 15;
	y = 160;
	start = page * TROPHIES_PER_PAGE;
	end = start + TROPHIES_PER_PAGE;
	i = 0;
	
	for (t = game.trophyHead.next ; t != NULL ; t = t->next)
	{
		if (i >= start && i < end)
		{
			if (t->awardDate)
			{
				setSparkleColor(t);
				blitRectRotated(atlasTexture->texture, x + 32, y + 32, &sparkle->rect, sparkleAngle);
				blitRectRotated(atlasTexture->texture, x + 32, y + 32, &sparkle->rect, -sparkleAngle);
				
				blitRectScaled(atlasTexture->texture, x, y, 64, 64, &trophyIcons[t->value]->rect, 0);
				drawText(x + 85, y - 10, 20, TA_LEFT, colors.yellow, t->title);
				drawText(x + 85, y + 20, 18, TA_LEFT, colors.white, t->description);
				
				if (strlen(t->awardDateStr) == 0)
				{
					STRNCPY(t->awardDateStr, timeToDate(t->awardDate), MAX_NAME_LENGTH);
				}
				
				drawText(x + 85, y + 48, 18, TA_LEFT, colors.white, t->awardDateStr);
			}
			else
			{
				blitRectScaled(atlasTexture->texture, x, y, 64, 64, &trophyIcons[TROPHY_UNEARNED]->rect, 0);
				
				if (!t->hidden)
				{
					drawText(x + 85, y - 10, 20, TA_LEFT, colors.lightGrey, t->title);
					drawText(x + 85, y + 20, 18, TA_LEFT, colors.darkGrey, t->description);
					drawText(x + 85, y + 48, 18, TA_LEFT, colors.darkGrey, "-");
				}
				else
				{
					drawText(x + 85, y + 20, 20, TA_LEFT, colors.darkGrey, "Hidden");
				}
			}
			
			y += 120;
		}
		
		i++;
	}
	
	SDL_SetTextureColorMod(atlasTexture->texture, 255, 255, 255);
		
	drawWidgets();
}

void awardTrophy(char *id)
{
	Trophy *t;
	int numRemaining;

	numRemaining = 0;

	for (t = game.trophyHead.next ; t != NULL ; t = t->next)
	{
		if (t->awardDate == 0 && strcmp(t->id, id) == 0)
		{
			t->awardDate = time(NULL);
			t->notify = SDL_GetTicks();

			SDL_Delay(1);

			SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Awarding trophy '%s'", t->id);
		}

		if (t->awardDate == 0)
		{
			numRemaining++;
		}
	}

	/* the Platinum will always be the last trophy to unlock */
	if (numRemaining == 1)
	{
		awardTrophy("PLATINUM");
	}
}

Trophy *getTrophy(char *id)
{
	Trophy *t;

	for (t = game.trophyHead.next ; t != NULL ; t = t->next)
	{
		if (strcmp(t->id, id) == 0)
		{
			return t;
		}
	}

	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "No such trophy '%s'", id);
	exit(1);
}

void awardTrophies(void)
{
	int val;
	Trophy *t;

	for (t = game.trophyHead.next ; t != NULL ; t = t->next)
	{
		if (t->awardDate == 0 && t->statValue != 0)
		{
			val = game.stats[t->stat];

			if (val >= t->statValue)
			{
				awardTrophy(t->id);
			}
		}
	}
}

void doTrophyAlerts(void)
{
	if (app.config.trophyAlert == 1 || (app.config.trophyAlert == 2 && !app.restrictTrophyAlert))
	{
		if (!alertTrophy)
		{
			nextAlert();
		}
		else if (alertTrophy)
		{
			alertRect.x = MIN(alertRect.x + 24, -1);

			if (alertRect.x > -150)
			{
				alertTimer--;
			}

			if (alertTimer <= 0)
			{
				alertTrophy->notify = 0;
				resetAlert();
			}
		}
		
		sparkleAngle = mod(sparkleAngle + 0.25, 360);
	}
}

static void nextAlert(void)
{
	int w, h;
	Trophy *t;

	for (t = game.trophyHead.next ; t != NULL ; t = t->next)
	{
		if (t->notify)
		{
			if (!alertTrophy || t->notify < alertTrophy->notify)
			{
				alertTrophy = t;
			}
		}
	}
	
	if (alertTrophy)
	{
		playSound(SND_TROPHY, -1);
		
		textSize(alertTrophy->title, 30, &alertRect.w, &h);
		textSize(alertTrophy->description, 20, &w, &h);
		
		alertRect.w = MAX(alertRect.w, w);
		alertRect.w = MAX(400, alertRect.w);
		alertRect.w += 125;
		alertRect.x = -alertRect.w;
	}
}

static void resetAlert(void)
{
	alertTimer = FPS * 3;
	alertTrophy = NULL;
	savedScreenshot = 0;
}

void drawTrophyAlert(void)
{
	int x, y;
	
	if (alertTrophy)
	{
		drawRect(alertRect.x, alertRect.y, alertRect.w, alertRect.h, 0, 0, 0, 255);
		drawOutlineRect(alertRect.x, alertRect.y, alertRect.w, alertRect.h, 255, 255, 255, 255);

		drawText(alertRect.x + 15, alertRect.y + 5, 30, TA_LEFT, colors.white, alertTrophy->title);
		drawText(alertRect.x + 15, alertRect.y + 45, 20, TA_LEFT, colors.white, alertTrophy->description);

		x = alertRect.x + alertRect.w - 72;
		y = alertRect.y + 20;

		setSparkleColor(alertTrophy);
		blitRect(atlasTexture->texture, x + 24, y + 24, &alertSphere->rect, 1);
		blitRectRotated(atlasTexture->texture, x + 24, y + 24, &sparkle->rect, sparkleAngle);
		blitRectRotated(atlasTexture->texture, x + 24, y + 24, &sparkle->rect, -sparkleAngle);
		blitRectScaled(atlasTexture->texture, x, y, 48, 48, &trophyIcons[alertTrophy->value]->rect, 0);
		SDL_SetTextureColorMod(atlasTexture->texture, 255, 255, 255);
	}
}

void saveTrophyScreenshot(void)
{
	if (alertTrophy && alertRect.x == -1 && app.config.trophyScreenshot && !savedScreenshot)
	{
		saveScreenshot(alertTrophy->id);
		
		savedScreenshot = 1;
	}
}

static void loadTrophyData(void)
{
	cJSON *root, *node;
	char *text;
	Trophy *t;
	char *filename;

	filename = "data/misc/trophies.json";

	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Loading %s", filename);

	text = readFile(filename);
	root = cJSON_Parse(text);

	for (node = root->child ; node != NULL ; node = node->next)
	{
		t = malloc(sizeof(Trophy));
		memset(t, 0, sizeof(Trophy));
		game.trophyTail->next = t;
		game.trophyTail = t;

		STRNCPY(t->id, cJSON_GetObjectItem(node, "id")->valuestring, MAX_NAME_LENGTH);
		STRNCPY(t->title, _(cJSON_GetObjectItem(node, "title")->valuestring), MAX_DESCRIPTION_LENGTH);
		STRNCPY(t->description, _(cJSON_GetObjectItem(node, "description")->valuestring), MAX_DESCRIPTION_LENGTH);
		t->value = lookup(cJSON_GetObjectItem(node, "value")->valuestring);

		if (cJSON_GetObjectItem(node, "hidden"))
		{
			t->hidden = cJSON_GetObjectItem(node, "hidden")->valueint;
		}
		
		t->stat = -1;
		
		if (cJSON_GetObjectItem(node, "stat"))
		{
			t->stat = lookup(cJSON_GetObjectItem(node, "stat")->valuestring);
			t->statValue = cJSON_GetObjectItem(node, "statValue")->valueint;
		}
	}

	cJSON_Delete(root);
	free(text);
}
 
static void setSparkleColor(Trophy *t)
{
	switch (t->value)
	{
		case TROPHY_BRONZE:
			SDL_SetTextureColorMod(atlasTexture->texture, 255, 128, 0);
			break;
		
		case TROPHY_SILVER:
			SDL_SetTextureColorMod(atlasTexture->texture, 192, 192, 192);
			break;
		
		case TROPHY_GOLD:
			SDL_SetTextureColorMod(atlasTexture->texture, 255, 255, 0);
			break;
		
		case TROPHY_PLATINUM:
			SDL_SetTextureColorMod(atlasTexture->texture, 0, 128, 255);
			break;

		default:
			break;
	}
}