/* equipment.c */
/* creates the UI for the equipment page -
 * controlled through the following interfaces:
 *
 * void show_dive_equipment(struct dive *dive, int w_idx)
 *
 * called from gtk-ui:
 * GtkWidget *equipment_widget(int w_idx)
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include "gettext.h"
#include "dive.h"
#include "display.h"
#include "divelist.h"

/* placeholders for a few functions that we need to redesign for the Qt UI */
void add_cylinder_description(cylinder_type_t *type)
{
	const char *desc;

	desc = type->description;
	if (!desc)
		return;
	/* now do something with it... */
}
void add_weightsystem_description(weightsystem_t *weightsystem)
{
	const char *desc;
	int i;

	desc = weightsystem->description;
	if (!desc)
		return;
	for (i = 0; i < 100 && ws_info[i].name != NULL; i++) {
		if (strcmp(ws_info[i].name, desc) == 0) {
			ws_info[i].grams = weightsystem->weight.grams;
			return;
		}
	}
	if (i < 100) {
		ws_info[i].name = desc;
		ws_info[i].grams = weightsystem->weight.grams;
	}
}

bool cylinder_nodata(cylinder_t *cyl)
{
	return	!cyl->type.size.mliter &&
		!cyl->type.workingpressure.mbar &&
		!cyl->type.description &&
		!cyl->gasmix.o2.permille &&
		!cyl->gasmix.he.permille &&
		!cyl->start.mbar &&
		!cyl->end.mbar;
}

static bool cylinder_nosamples(cylinder_t *cyl)
{
	return	!cyl->sample_start.mbar &&
		!cyl->sample_end.mbar;
}

bool cylinder_none(void *_data)
{
	cylinder_t *cyl = _data;
	return cylinder_nodata(cyl) && cylinder_nosamples(cyl);
}

/* descriptions are equal if they are both NULL or both non-NULL
   and the same text */
static bool description_equal(const char *desc1, const char *desc2)
{
		return ((! desc1 && ! desc2) ||
			(desc1 && desc2 && strcmp(desc1, desc2) == 0));
}

bool weightsystem_none(void *_data)
{
	weightsystem_t *ws = _data;
	return !ws->weight.grams && !ws->description;
}

bool no_weightsystems(weightsystem_t *ws)
{
	int i;

	for (i = 0; i < MAX_WEIGHTSYSTEMS; i++)
		if (!weightsystem_none(ws + i))
			return FALSE;
	return TRUE;
}

static bool one_weightsystem_equal(weightsystem_t *ws1, weightsystem_t *ws2)
{
	return ws1->weight.grams == ws2->weight.grams &&
		description_equal(ws1->description, ws2->description);
}

bool weightsystems_equal(weightsystem_t *ws1, weightsystem_t *ws2)
{
	int i;

	for (i = 0; i < MAX_WEIGHTSYSTEMS; i++)
		if (!one_weightsystem_equal(ws1 + i, ws2 + i))
			return FALSE;
	return TRUE;
}

/*
 * We hardcode the most common standard cylinders,
 * we should pick up any other names from the dive
 * logs directly.
 */
struct tank_info_t tank_info[100] = {
	/* Need an empty entry for the no-cylinder case */
	{ "", },

	/* Size-only metric cylinders */
	{ "10.0 l", .ml = 10000 },
	{ "11.1 l", .ml = 11100 },

	/* Most common AL cylinders */
	{ "AL40",  .cuft =  40, .psi = 3000 },
	{ "AL50",  .cuft =  50, .psi = 3000 },
	{ "AL63",  .cuft =  63, .psi = 3000 },
	{ "AL72",  .cuft =  72, .psi = 3000 },
	{ "AL80",  .cuft =  80, .psi = 3000 },
	{ "AL100", .cuft = 100, .psi = 3300 },

	/* Somewhat common LP steel cylinders */
	{ "LP85",  .cuft =  85, .psi = 2640 },
	{ "LP95",  .cuft =  95, .psi = 2640 },
	{ "LP108", .cuft = 108, .psi = 2640 },
	{ "LP121", .cuft = 121, .psi = 2640 },

	/* Somewhat common HP steel cylinders */
	{ "HP65",  .cuft =  65, .psi = 3442 },
	{ "HP80",  .cuft =  80, .psi = 3442 },
	{ "HP100", .cuft = 100, .psi = 3442 },
	{ "HP119", .cuft = 119, .psi = 3442 },
	{ "HP130", .cuft = 130, .psi = 3442 },

	/* Common European steel cylinders */
	{ "3L 232 bar",   .ml = 3000,  .bar = 232 },
	{ "3L 300 bar",   .ml = 3000,  .bar = 300 },
	{ "10L 300 bar",  .ml = 10000, .bar = 300 },
	{ "12L 200 bar",  .ml = 12000, .bar = 200 },
	{ "12L 232 bar",  .ml = 12000, .bar = 232 },
	{ "12L 300 bar",  .ml = 12000, .bar = 300 },
	{ "15L 200 bar",  .ml = 15000, .bar = 200 },
	{ "15L 232 bar",  .ml = 15000, .bar = 232 },
	{ "D7 300 bar",   .ml = 14000, .bar = 300 },
	{ "D8.5 232 bar", .ml = 17000, .bar = 232 },
	{ "D12 232 bar",  .ml = 24000, .bar = 232 },

	/* We'll fill in more from the dive log dynamically */
	{ NULL, }
};

/*
 * We hardcode the most common weight system types
 * This is a bit odd as the weight system types don't usually encode weight
 */
struct ws_info_t ws_info[100] = {
	{ QT_TR_NOOP("integrated"), 0 },
	{ QT_TR_NOOP("belt"), 0 },
	{ QT_TR_NOOP("ankle"), 0 },
	{ QT_TR_NOOP("backplate weight"), 0 },
	{ QT_TR_NOOP("clip-on"), 0 },
};

void remove_cylinder(struct dive *dive, int idx)
{
	cylinder_t *cyl = dive->cylinder + idx;
	int nr = MAX_CYLINDERS - idx - 1;
	memmove(cyl, cyl + 1, nr * sizeof(*cyl));
	memset(cyl + nr, 0, sizeof(*cyl));
}

void remove_weightsystem(struct dive *dive, int idx)
{
	weightsystem_t *ws = dive->weightsystem + idx;
	int nr = MAX_WEIGHTSYSTEMS - idx - 1;
	memmove(ws, ws + 1, nr * sizeof(*ws));
	memset(ws + nr, 0, sizeof(*ws));
}