/*
 * Copyright (C) Volition, Inc. 1999.  All rights reserved.
 *
 * All source code herein is the property of Volition, Inc. You may not sell 
 * or otherwise commercially exploit the source or things you created based on the 
 * source.
 *
*/ 



#include "cutscene/cutscenes.h"
#include "ui/ui.h"
#include "gamesnd/gamesnd.h"
#include "gamesequence/gamesequence.h"
#include "freespace2/freespace.h"
#include "io/key.h"
#include "movie.h"
#include "popup/popup.h"
#include "menuui/mainhallmenu.h"
#include "globalincs/alphacolors.h"
#include "localization/localize.h"
#include "parse/parselo.h"


extern int Cmdline_nomovies;


char *Cutscene_bitmap_name[GR_NUM_RESOLUTIONS] = {
	"ViewFootage",
	"2_ViewFootage"
};
char *Cutscene_mask_name[GR_NUM_RESOLUTIONS] = {
	"ViewFootage-m",
	"2_ViewFootage-m"
};

int Description_index;
SCP_vector<cutscene_info> Cutscenes;

void cutscene_close()
{
	for(SCP_vector<cutscene_info>::iterator cut = Cutscenes.begin(); cut != Cutscenes.end(); ++cut)
		if(cut->description != NULL) {
			vm_free(cut->description);
			cut->description = NULL;
		}
}

// initialization stuff for cutscenes
void cutscene_init()
{
	atexit(cutscene_close);
	char buf[MULTITEXT_LENGTH];
	int rval;
    cutscene_info cutinfo;

	// open localization
	lcl_ext_open();

	if ((rval = setjmp(parse_abort)) != 0) {
		mprintf(("TABLES: Unable to parse '%s'!  Error code = %i.\n", "cutscenes.tbl", rval));
		lcl_ext_close();
		return;
	}

	read_file_text("cutscenes.tbl", CF_TYPE_TABLES);
	reset_parse();

	// parse in all the cutscenes
	Cutscenes.clear();
	skip_to_string("#Cutscenes");
	ignore_white_space();

	bool isFirstCutscene = true;

	while ( required_string_either("#End", "$Filename:") ) 
    {
        memset(&cutinfo, 0, sizeof(cutscene_info));

		required_string("$Filename:");
		stuff_string( cutinfo.filename, F_PATHNAME, MAX_FILENAME_LEN );

		required_string("$Name:");
		stuff_string( cutinfo.name, F_NAME, NAME_LENGTH );

		required_string("$Description:");
		stuff_string(buf, F_MULTITEXT, sizeof(buf));
		drop_white_space(buf);
		compact_multitext_string(buf);
		cutinfo.description = vm_strdup(buf);

		required_string("$cd:");
		stuff_int( &cutinfo.cd );

		if (isFirstCutscene) {
			isFirstCutscene = false;
			// The original code assumes the first movie is the intro, so always viewable
			cutinfo.viewable = true;
		}

		if (optional_string("$Always Viewable:")) {
			stuff_boolean(&cutinfo.viewable);
		}


        Cutscenes.push_back(cutinfo);
	}

	required_string("#End");

	// close localization
	lcl_ext_close();
}

// function to return 0 based index of which CD a particular movie is on
// returns -1 on failure.
int cutscenes_get_cd_num( char *filename )
{
	for (SCP_vector<cutscene_info>::iterator cut = Cutscenes.begin(); cut != Cutscenes.end(); ++cut) {
		if ( !stricmp(cut->filename, filename) ) {
			return (cut->cd - 1);
		}
	}

	return -1;
}

// marks a cutscene as viewable
void cutscene_mark_viewable(char *filename)
{
	char cut_file[MAX_FILENAME_LEN];
	char file[MAX_FILENAME_LEN];

	Assert(filename!=NULL);

	// strip off extension
	strcpy_s( file, filename );
	char *p = strchr( file, '.' );
	if ( p ) {
		*p = 0;
	}

	// change to lower case
	strlwr(file);
	int i = 0;
	for (SCP_vector<cutscene_info>::iterator cut = Cutscenes.begin(); cut != Cutscenes.end(); ++cut) {
		// change the cutscene file name to lower case
		strcpy_s(cut_file, cut->filename);
		strlwr(cut_file);

		// see if the stripped filename matches the cutscene filename
		if ( strstr(cut_file, file) != NULL ) {
			cut->viewable = true;
			return;
		}
		i++;
	}
}

#define NUM_BUTTONS				8

#define TECH_DATABASE_BUTTON	0
#define SIMULATOR_BUTTON		1
#define CUTSCENES_BUTTON		2
#define CREDITS_BUTTON			3

#define SCROLL_UP_BUTTON		4
#define SCROLL_DOWN_BUTTON		5
#define PLAY_BUTTON				6
#define EXIT_BUTTON				7

static SCP_vector<int> Cutscene_list;
//static int Stats_scroll_offset;  // not used - taylor
static int Selected_line = 0;  // line that is currently selected for binding
static int Scroll_offset;
static int Background_bitmap;
static UI_BUTTON List_region;
static UI_WINDOW Ui_window;

static ui_button_info Buttons[GR_NUM_RESOLUTIONS][NUM_BUTTONS] = {
	{ // GR_640
		ui_button_info("TDB_00",	7,		3,		37,	7,		0),			// tech database 1
		ui_button_info("TDB_01",	7,		18,	37,	23,	1),			// tech database 2
		ui_button_info("TDB_02",	7,		34,	37,	38,	2),			// tech database 3
		ui_button_info("TDB_03",	7,		49,	37,	54,	3),			// tech database 4

		ui_button_info("VFB_04",	6,		318,	-1,	-1,	4),			// scroll up
		ui_button_info("VFB_05",	36,	318,	-1,	-1,	5),			// scroll down
		ui_button_info("VFB_06",	578,	319,	587,	366,	6),			// play
		ui_button_info("VFB_07",	574,	431,	587,	413,	7),			// exit
	},
	{ // GR_1024
		ui_button_info("2_TDB_00",	12,	5,		59,	12,	0),			// tech database 1
		ui_button_info("2_TDB_01",	12,	31,	59,	37,	1),			// tech database 2
		ui_button_info("2_TDB_02",	12,	56,	59,	62,	2),			// tech database 3
		ui_button_info("2_TDB_03",	12,	81,	59,	88,	3),			// tech database 4

		ui_button_info("2_VFB_04",	9,		509,	-1,	-1,	4),			// scroll up
		ui_button_info("2_VFB_05",	58,	509,	-1,	-1,	5),			// scroll down
		ui_button_info("2_VFB_06",	925,	511,	940,	586,	6),			// play
		ui_button_info("2_VFB_07",	918,	689,	940,	661,	7),			// exit
	}
};

// text
#define NUM_CUTSCENE_TEXT			6
UI_XSTR Cutscene_text[GR_NUM_RESOLUTIONS][NUM_CUTSCENE_TEXT] = {
	{ // GR_640
		{"Technical Database",		1055,		37,	7,		UI_XSTR_COLOR_GREEN, -1, &Buttons[0][TECH_DATABASE_BUTTON].button },
		{"Mission Simulator",		1056,		37,	23,	UI_XSTR_COLOR_GREEN, -1, &Buttons[0][SIMULATOR_BUTTON].button },
		{"Cutscenes",					1057,		37,	38,	UI_XSTR_COLOR_GREEN, -1, &Buttons[0][CUTSCENES_BUTTON].button },
		{"Credits",						1058,		37,	54,	UI_XSTR_COLOR_GREEN, -1, &Buttons[0][CREDITS_BUTTON].button },
		
		{"Play",							1335,		587,	366,	UI_XSTR_COLOR_GREEN, -1, &Buttons[0][PLAY_BUTTON].button },
		{"Exit",							1419,		587,	413,	UI_XSTR_COLOR_PINK, -1, &Buttons[0][EXIT_BUTTON].button },			
	},
	{ // GR_1024
		{"Technical Database",		1055,		59,	12,	UI_XSTR_COLOR_GREEN, -1, &Buttons[1][TECH_DATABASE_BUTTON].button },
		{"Mission Simulator",		1056,		59,	37,	UI_XSTR_COLOR_GREEN, -1, &Buttons[1][SIMULATOR_BUTTON].button },
		{"Cutscenes",					1057,		59,	62,	UI_XSTR_COLOR_GREEN, -1, &Buttons[1][CUTSCENES_BUTTON].button },
		{"Credits",						1058,		59,	88,	UI_XSTR_COLOR_GREEN, -1, &Buttons[1][CREDITS_BUTTON].button },
		
		{"Play",							1335,		940,	586,	UI_XSTR_COLOR_GREEN, -1, &Buttons[1][PLAY_BUTTON].button },
		{"Exit",							1419,		940,	661,	UI_XSTR_COLOR_PINK, -1, &Buttons[1][EXIT_BUTTON].button },			
	}
};

int Cutscene_list_coords[GR_NUM_RESOLUTIONS][4] = {
	{ // GR_640
		9,	117,	621,	198
	},
	{ // GR_1024
		14,	188,	994,	316
	}
};

int Cutscene_desc_coords[GR_NUM_RESOLUTIONS][4] = {
	{ // GR_640
		9,	378, 484, 73
	},
	{ // GR_1024
		14, 605, 775, 117
	}
};

#define MAX_TEXT_LINES		20
int Cutscene_max_text_lines[GR_NUM_RESOLUTIONS] = {
	10,
	MAX_TEXT_LINES
};
#define MAX_TEXT_LINE_LEN	256

static int Text_size;
static int Text_offset = 0;
static int Text_line_size[MAX_TEXT_LINES];
static char *Text_lines[MAX_TEXT_LINES];


int cutscenes_validate_cd(char *mve_name, int prompt_for_cd)
{
	int cd_present = 0;
	int cd_drive_num;
	int cd_mve_is_on;
	char volume_name[128];

	int num_attempts = 0;

	while(1) {
		int path_set_ok;

		cd_mve_is_on = cutscenes_get_cd_num(mve_name);
		if ((cd_mve_is_on != 0) && (cd_mve_is_on != 1) && (cd_mve_is_on != 2)) {
			cd_present = 0;
			break;
		}

		sprintf(volume_name, NOX("FREESPACE2_%c"), '1' + cd_mve_is_on);

		cd_drive_num = find_freespace_cd(volume_name);
		path_set_ok = set_cdrom_path(cd_drive_num);

		if ( path_set_ok ) {
			cd_present = 1;
			break;
		}

		if ( !prompt_for_cd ) {
			cd_present = 0;
			break;
		}

		// no CD found, so prompt user
		char popup_msg[256];
		int popup_rval;

		sprintf(popup_msg, XSTR( "Movie not found\n\nInsert FreeSpace CD #%d to continue", 203), cd_mve_is_on+1);

		popup_rval = popup(PF_BODY_BIG, 2, POPUP_CANCEL, POPUP_OK, popup_msg);
		if ( popup_rval != 1 ) {
			cd_present = 0;
			break;
		}

		if ( num_attempts++ > 5 ) {
			cd_present = 0;
			break;
		}													   
	}

	return cd_present;   
}

void cutscenes_screen_play()
{
	char name[MAX_FILENAME_LEN]; // *full_name 
	int which_cutscene;

	Assert( (Selected_line >= 0) && (Selected_line < (int)Cutscene_list.size()) );
	which_cutscene = Cutscene_list[Selected_line];

	strcpy_s(name, Cutscenes[which_cutscene].filename );
//	full_name = cf_add_ext(name, NOX(".mve"));

	main_hall_stop_music();
	main_hall_stop_ambient();
	int rval = movie_play(name);
	main_hall_start_music();

	if ( !rval ) {
		char str[256];

		if (Cmdline_nomovies)
			strcpy_s(str, XSTR("Movies are currently disabled.", 1574));
		else
			sprintf(str, XSTR("Unable to play movie %s.", 204), Cutscenes[which_cutscene].name);

		popup(0, 1, POPUP_OK, str );
	}
	
}

void cutscenes_screen_scroll_line_up()
{
	if (Selected_line) {
		Selected_line--;
		gamesnd_play_iface(SND_SCROLL);

	} else
		gamesnd_play_iface(SND_GENERAL_FAIL);
	
	if (Selected_line < Scroll_offset)
		Scroll_offset = Selected_line;
}

void cutscenes_screen_scroll_line_down()
{
	int h;

	if (Selected_line < (int)Cutscene_list.size() - 1) {
		Selected_line++;
		gamesnd_play_iface(SND_SCROLL);

	} else
		gamesnd_play_iface(SND_GENERAL_FAIL);
	
	h = Cutscene_list_coords[gr_screen.res][3] / gr_get_font_height();
	if (Selected_line >= Scroll_offset + h){
		Scroll_offset++;
	}
}

void cutscenes_screen_scroll_screen_up()
{
	int h;

	if (Scroll_offset) {
		Scroll_offset--;
		Assert(Selected_line > Scroll_offset);
		h = Cutscene_list_coords[gr_screen.res][3] / gr_get_font_height();
		while (Selected_line >= Scroll_offset + h){
			Selected_line--;
		}

		gamesnd_play_iface(SND_SCROLL);

	} else {
		gamesnd_play_iface(SND_GENERAL_FAIL);
	}
}

void cutscenes_screen_scroll_screen_down()
{
	int h;

	h = Cutscene_list_coords[gr_screen.res][3] / gr_get_font_height();
	if (Scroll_offset + h < (int)Cutscene_list.size()) {
		Scroll_offset++;
		if (Selected_line < Scroll_offset){
			Selected_line = Scroll_offset;
		}

		gamesnd_play_iface(SND_SCROLL);
	} else {
		gamesnd_play_iface(SND_GENERAL_FAIL);
	}
}

int cutscenes_screen_button_pressed(int n)
{
	switch (n) {
		case TECH_DATABASE_BUTTON:
			gamesnd_play_iface(SND_SWITCH_SCREENS);
			gameseq_post_event(GS_EVENT_TECH_MENU);
			return 1;

		case SIMULATOR_BUTTON:
			gamesnd_play_iface(SND_SWITCH_SCREENS);
			gameseq_post_event(GS_EVENT_SIMULATOR_ROOM);
			return 1;

		case CREDITS_BUTTON:
			gamesnd_play_iface(SND_SWITCH_SCREENS);
			gameseq_post_event(GS_EVENT_CREDITS);
			return 1;

		case SCROLL_UP_BUTTON:
			cutscenes_screen_scroll_screen_up();
			break;

		case SCROLL_DOWN_BUTTON:
			cutscenes_screen_scroll_screen_down();
			break;

		case PLAY_BUTTON:
			cutscenes_screen_play();
			break;

		case EXIT_BUTTON:
			gamesnd_play_iface(SND_COMMIT_PRESSED);
			gameseq_post_event(GS_EVENT_MAIN_MENU);
			game_flush();
			break;
	}

	return 0;
}

void cutscenes_screen_init()
{
	int i;
	ui_button_info *b;

	Ui_window.create(0, 0, gr_screen.max_w_unscaled, gr_screen.max_h_unscaled, 0);
	Ui_window.set_mask_bmap(Cutscene_mask_name[gr_screen.res]);

	for (i=0; i<NUM_BUTTONS; i++) {
		b = &Buttons[gr_screen.res][i];

		b->button.create(&Ui_window, "", b->x, b->y, 60, 30, (i < 2), 1);
		// set up callback for when a mouse first goes over a button
		b->button.set_highlight_action(common_play_highlight_sound);
		b->button.set_bmaps(b->filename);
		b->button.link_hotspot(b->hotspot);
	}

	// add xstrs
	for(i=0; i<NUM_CUTSCENE_TEXT; i++){
		Ui_window.add_XSTR(&Cutscene_text[gr_screen.res][i]);
	}

	Buttons[gr_screen.res][EXIT_BUTTON].button.set_hotkey(KEY_CTRLED | KEY_ENTER);
	Buttons[gr_screen.res][SCROLL_UP_BUTTON].button.set_hotkey(KEY_PAGEUP);
	Buttons[gr_screen.res][SCROLL_DOWN_BUTTON].button.set_hotkey(KEY_PAGEDOWN);	

	List_region.create(&Ui_window, "", Cutscene_list_coords[gr_screen.res][0], Cutscene_list_coords[gr_screen.res][1], Cutscene_list_coords[gr_screen.res][2], Cutscene_list_coords[gr_screen.res][3], 0, 1);
	List_region.hide();

	// set up hotkeys for buttons so we draw the correct animation frame when a key is pressed
	Buttons[gr_screen.res][SCROLL_UP_BUTTON].button.set_hotkey(KEY_PAGEUP);
	Buttons[gr_screen.res][SCROLL_DOWN_BUTTON].button.set_hotkey(KEY_PAGEDOWN);

	Background_bitmap = bm_load(Cutscene_bitmap_name[gr_screen.res]);
	Scroll_offset = Selected_line = 0;
	Description_index = -1;

    Cutscene_list.clear();
	
	int u = 0;
	for (SCP_vector<cutscene_info>::iterator cut = Cutscenes.begin(); cut != Cutscenes.end(); ++cut, u++) {
		if ( (*cut).viewable ) {
			Cutscene_list.push_back(u);
		}
	}
}

void cutscenes_screen_close()
{
	if (Background_bitmap)
		bm_release(Background_bitmap);

	Ui_window.destroy();
}

void cutscenes_screen_do_frame()
{
	int i, k, y, z;
	int font_height = gr_get_font_height();
	int select_tease_line = -1;

	k = Ui_window.process();
	switch (k) {
		case KEY_DOWN:  // select next line
			cutscenes_screen_scroll_line_down();
			break;

		case KEY_UP:  // select previous line
			cutscenes_screen_scroll_line_up();
			break;

		case KEY_TAB:
		case KEY_CTRLED | KEY_DOWN:
			cutscenes_screen_button_pressed(CREDITS_BUTTON);
			break;

		case KEY_SHIFTED | KEY_TAB:
		case KEY_CTRLED | KEY_UP:
			cutscenes_screen_button_pressed(SIMULATOR_BUTTON);
			break;

		case KEY_ENTER:
			cutscenes_screen_play();
			break;

		case KEY_ESC:  // cancel
			gameseq_post_event(GS_EVENT_MAIN_MENU);
			game_flush();
			break;

		case KEY_F1:  // show help overlay
			break;

		case KEY_F2:  // goto options screen
			gameseq_post_event(GS_EVENT_OPTIONS_MENU);
			break;

		// the "show-all" hotkey
		case KEY_CTRLED | KEY_SHIFTED | KEY_S:
		{
            Cutscene_list.clear();
			size_t size = Cutscenes.size();
			for (size_t t = 0; t < size; t++) {
                Cutscene_list.push_back((int)t);
			}

			break;
		}
	}	// end switch

	for (i=0; i<NUM_BUTTONS; i++){
		if (Buttons[gr_screen.res][i].button.pressed()){
			if (cutscenes_screen_button_pressed(i)){
				return;
			}
		}
	}

	if (List_region.button_down()) {
		List_region.get_mouse_pos(NULL, &y);
		z = Scroll_offset + y / font_height;
		if ((z >= 0) && (z < (int)Cutscene_list.size()))
			select_tease_line = z;
	}
	
	if (List_region.pressed()) {
		List_region.get_mouse_pos(NULL, &y);
		z = Scroll_offset + y / font_height;
		if ((z >= 0) && (z < (int)Cutscene_list.size()))
			Selected_line = z;
	}

	GR_MAYBE_CLEAR_RES(Background_bitmap);
	if (Background_bitmap >= 0) {
		gr_set_bitmap(Background_bitmap);
		gr_bitmap(0, 0);
	} 

	Ui_window.draw();

	for (i=TECH_DATABASE_BUTTON; i<=CREDITS_BUTTON; i++){
		if (Buttons[gr_screen.res][i].button.button_down()){
			break;
		}
	}

	if (i > CREDITS_BUTTON){
		Buttons[gr_screen.res][CUTSCENES_BUTTON].button.draw_forced(2);
	}

	y = 0;
	z = Scroll_offset;
	while (y + font_height <= Cutscene_list_coords[gr_screen.res][3]) {
		if (z >= (int)Cutscene_list.size()){
			break;
		}

		if (z == Selected_line){
			gr_set_color_fast(&Color_text_selected);
		} else if (z == select_tease_line) {
			gr_set_color_fast(&Color_text_subselected);
		} else {
			gr_set_color_fast(&Color_text_normal);
		}

		gr_printf(Cutscene_list_coords[gr_screen.res][0], Cutscene_list_coords[gr_screen.res][1] + y, Cutscenes[Cutscene_list[z]].name);

		y += font_height;
		z++;
	}

	if (Description_index != Selected_line) {
		char *src = NULL;

		Description_index = Selected_line;
		Text_size = 0;
		if ( Description_index < (int)Cutscene_list.size( ) &&
			 (int)Cutscene_list[ Description_index ] < (int)Cutscenes.size( ) ) {
			src = Cutscenes[Cutscene_list[Description_index]].description;
			if (src) {
				Text_size = split_str(src, Cutscene_desc_coords[gr_screen.res][2], Text_line_size, Text_lines, Cutscene_max_text_lines[gr_screen.res]);
				Assert(Text_size >= 0 && Text_size < Cutscene_max_text_lines[gr_screen.res]);
			}
		}
	}

	if (Description_index >= 0) {
		int len;
		char line[MAX_TEXT_LINE_LEN + 1];

		gr_set_color_fast(&Color_text_normal);

		y = 0;
		z = Text_offset;
		while (y + font_height <= Cutscene_desc_coords[gr_screen.res][3]) {
			if (z >= Text_size || z >= MAX_TEXT_LINES-1)
				break;

			len = Text_line_size[z];
			if (len > MAX_TEXT_LINE_LEN)
				len = MAX_TEXT_LINE_LEN;

			strncpy(line, Text_lines[z], len);
			line[len] = 0;
			gr_string(Cutscene_desc_coords[gr_screen.res][0], Cutscene_desc_coords[gr_screen.res][1] + y, line);

			y += font_height;
			z++;
		}
	}

	gr_flip();
}