#include "config.h"
#include "copyright.h"

#include <stdio.h>
#include "Wlib.h"
#include "defs.h"
#include "struct.h"
#include "data.h"

#include "stats.h"
#include "util.h"

#define	BX_OFF()	((textWidth + 1) * W_Textwidth + S_IBORDER)
#define	BY_OFF(line)	((line) * (W_Textheight + S_IBORDER) + S_IBORDER)
#define	TX_OFF(len)	((textWidth - len) * W_Textwidth + S_IBORDER)
#define	TY_OFF(line)	BY_OFF(line)

#define STAT_WIDTH		160
#define STAT_HEIGHT		BY_OFF(NUM_SLIDERS)
#define STAT_BORDER		2
#define S_IBORDER		5
#define STAT_X			422
#define STAT_Y			13

#define SL_WID			\
	(STAT_WIDTH - 2 * S_IBORDER - (textWidth + 1) * W_Textwidth)
#define SL_HEI			(W_Textheight)

#define NUM_ELS(a)		(sizeof (a) / sizeof (*(a)))
#define NUM_SLIDERS		NUM_ELS(sliders)

typedef struct slider
  {
    char   *label;
    int     min, max;
    int     low_red, high_red;
    int     label_length;
    int     diff;
    int    *var;
    int     lastVal;
  }

SLIDER;

typedef struct record
  {
    int    *data;
    int     last_value;
  }

RECORD;

static SLIDER sliders[] =
{
  {"Shields", 0, 100, 20, 100},
  {"Damage", 0, 100, 0, 0},
  {"Fuel", 0, 10000, 2000, 10000},
  {"Warp", 0, 9, 0, 9},
  {"Weapon Temp", 0, 1200, 0, 800},
  {"Engine Temp", 0, 1200, 0, 800},

#ifdef ARMY_SLIDER
  {"Armies", 0, 10, 0, 10},
#endif						 /* ARMY_SLIDER */

};

static int textWidth = 0;
static int initialized = 0;

static void box(int filled, int x, int y, int wid, int hei, W_Color color);

void initStats(void)
{
  int     i;

  if (initialized)
    return;
  initialized = 1;
  sliders[0].var = &(me->p_shield);
  sliders[1].var = &(me->p_damage);
  sliders[2].var = &(me->p_fuel);
  sliders[3].var = &(me->p_speed);
  sliders[4].var = &(me->p_wtemp);
  sliders[5].var = &(me->p_etemp);

#ifdef ARMY_SLIDER
  sliders[6].var = &(me->p_armies);		 /* note -- changed p_armies
						  * * * to int */
#endif /* ARMY_SLIDER */

  for (i = 0; i < NUM_SLIDERS; i++)
    {
      sliders[i].label_length = strlen(sliders[i].label);
      textWidth = MAX(textWidth, sliders[i].label_length);
      sliders[i].diff = sliders[i].max - sliders[i].min;
      sliders[i].lastVal = 0;
    }
}

void    redrawStats(W_Event *)
{
  int     i;

  W_ClearWindow(statwin);
  initStats();
  for (i = 0; i < NUM_SLIDERS; i++)
    {
      sliders[i].lastVal = 0;
    }
  for (i = 0; i < NUM_SLIDERS; i++)
    {
      W_WriteText(statwin, TX_OFF(sliders[i].label_length), TY_OFF(i),
		  textColor, sliders[i].label, sliders[i].label_length,
		  W_RegularFont);
      box(0, BX_OFF() - 1, BY_OFF(i) - 1, SL_WID + 2, SL_HEI + 2, borderColor);
      sliders[i].lastVal = 0;
    }
}

void updateStats(void)
{
  int     i, value, diff, old_x, new_x;
  W_Color color;
  SLIDER *s;

  initStats();
  for (i = 0; i < NUM_SLIDERS; i++)
    {
      s = &sliders[i];
      value = *(s->var);
      if (value < s->min)
	value = s->min;
      else if (value > s->max)
	value = s->max;
      if (value == s->lastVal)
	continue;
      diff = value - s->lastVal;
      if (diff < 0)
	{
	  old_x = s->lastVal * SL_WID / s->diff;
	  new_x = value * SL_WID / s->diff;
	  box(1, BX_OFF() + new_x, BY_OFF(i), old_x - new_x, SL_HEI, backColor);

	  if (s->lastVal >= s->low_red && value < s->low_red)
	    box(1, BX_OFF(), BY_OFF(i), new_x, SL_HEI, warningColor);
	  else if (s->lastVal > s->high_red && value <= s->high_red)
	    box(1, BX_OFF(), BY_OFF(i), new_x, SL_HEI, myColor);
	}
      else
	{
	  if (value < s->low_red)
	    color = warningColor;
	  else if (value > s->high_red)
	    {
	      color = warningColor;
	      if (s->lastVal <= s->high_red)
		s->lastVal = 0;
	    }
	  else
	    {
	      color = myColor;
	      if (s->lastVal < s->low_red)
		s->lastVal = 0;
	    }
	  old_x = s->lastVal * SL_WID / s->diff;
	  new_x = value * SL_WID / s->diff;
	  box(1, BX_OFF() + old_x, BY_OFF(i), new_x - old_x, SL_HEI, color);
	}
      s->lastVal = value;
    }
}

static void box(int filled, int x, int y, int wid, int hei, W_Color color)
{
  if (wid == 0)
    return;

  if (filled)
    {
      /* XFIX */
      W_FillArea(statwin, x, y, wid + 1, hei + 1, color);
      return;
    }

  W_MakeLine(statwin, x, y, x + wid, y, color);
  W_MakeLine(statwin, x + wid, y, x + wid, y + hei, color);
  W_MakeLine(statwin, x + wid, y + hei, x, y + hei, color);
  W_MakeLine(statwin, x, y + hei, x, y, color);
}


void calibrate_stats(void)
{
  register int i;

  sliders[0].max = me->p_ship.s_maxshield;
  sliders[0].low_red = .20 * ((double) sliders[0].max);
  sliders[0].high_red = sliders[0].max;

  sliders[1].max = me->p_ship.s_maxdamage;

  sliders[2].max = me->p_ship.s_maxfuel;
  sliders[2].low_red = .20 * ((double) sliders[2].max);
  sliders[2].high_red = sliders[2].max;

  sliders[3].max = me->p_ship.s_maxspeed;
  sliders[3].high_red = sliders[3].max;

  sliders[4].max = 1.2 * ((double) me->p_ship.s_maxwpntemp);
  sliders[4].high_red = .667 * ((double) sliders[4].max);

  sliders[5].max = 1.2 * ((double) me->p_ship.s_maxegntemp);
  sliders[5].high_red = .667 * ((double) sliders[5].max);

#ifdef ARMY_SLIDER
  sliders[6].max = troop_capacity();
#endif /* ARMY_SLIDER */

  for (i = 0; i < NUM_SLIDERS; i++)
    sliders[i].diff = sliders[i].max - sliders[i].min;
}
