/*
===========================================================================

Wolfenstein: Enemy Territory GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company. 

This file is part of the Wolfenstein: Enemy Territory GPL Source Code (“Wolf ET Source Code”).  

Wolf ET Source Code 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 3 of the License, or
(at your option) any later version.

Wolf ET Source Code 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 Wolf ET Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Wolf: ET Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Wolf ET Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

#include "g_local.h"

const char* systemMessages[SM_NUM_SYS_MSGS] = {
	"SYS_NeedMedic",
	"SYS_NeedEngineer",
	"SYS_NeedLT",
	"SYS_NeedCovertOps",
	"SYS_MenDown",
	"SYS_ObjCaptured",
	"SYS_ObjLost",
	"SYS_ObjDestroyed",
	"SYS_ConstructComplete",
	"SYS_ConstructFailed",
	"SYS_Destroyed",
};

qboolean G_NeedEngineers( int team ) {
	int i;
	gentity_t* e;

	for ( i = MAX_CLIENTS, e = &g_entities[MAX_CLIENTS]; i < level.num_entities; i++, e++ ) {
		if ( !e->inuse ) {
			continue;
		}

		if ( e->s.eType == ET_CONSTRUCTIBLE_INDICATOR || e->s.eType == ET_EXPLOSIVE_INDICATOR || e->s.eType == ET_TANK_INDICATOR ) {
			if ( e->s.teamNum == 3 ) {
				return qtrue;
			} else if ( team == TEAM_AXIS ) {
				if ( e->s.teamNum == 2 ) {
					return qtrue;
				}
			} else {
				if ( e->s.teamNum == 1 ) {
					return qtrue;
				}
			}
		}
	}

	return qfalse;
}

int G_GetSysMessageNumber( const char* sysMsg ) {
	int i;

	for ( i = 0; i < SM_NUM_SYS_MSGS; i++ ) {
		if ( !Q_stricmp( systemMessages[i], sysMsg ) ) {
			return i;
		}
	}

	return -1;
}

void G_SendSystemMessage( sysMsg_t message, int team ) {
	gentity_t* other;
	int *time;
	int j;

	time = team == TEAM_AXIS ? &level.lastSystemMsgTime[0] : &level.lastSystemMsgTime[1];

	if ( *time && ( level.time - *time ) < 15000 ) {
		return;
	}

	*time = level.time;

	for ( j = 0; j < level.maxclients; j++ ) {
		other = &g_entities[j];

		if ( !other->client || !other->inuse ) {
			continue;
		}

		if ( other->client->sess.sessionTeam != team ) {
			continue;
		}

		trap_SendServerCommand( other - g_entities, va( "vschat 0 %d 3 %s 0 0 0", other - g_entities, systemMessages[message] ) );
	}
}

void G_CheckForNeededClasses( void ) {
	qboolean playerClasses[NUM_PLAYER_CLASSES - 1][2];
	int i, team, cnt;
	int teamCounts[2];
	gentity_t* ent;
	static int lastcheck;

	memset( playerClasses, 0, sizeof( playerClasses ) );
	memset( teamCounts, 0, sizeof( teamCounts ) );

	if ( lastcheck && ( level.time - lastcheck ) < 60000 ) {
		return;
	}

	lastcheck = level.time;


	for ( i = 0, ent = g_entities; i < level.maxclients; i++, ent++ ) {
		if ( !ent->client || !ent->inuse ) {
			break;
		}

		// don't want spectators
		if ( ent->client->sess.sessionTeam < TEAM_AXIS ||
			 ent->client->sess.sessionTeam > TEAM_ALLIES ) {
			continue;
		}

		team = ent->client->sess.sessionTeam == TEAM_AXIS ? 0 : 1;

		if ( ent->client->sess.playerType != PC_SOLDIER ) {
			playerClasses[ent->client->sess.playerType - 1][team] = qtrue;
		}

		teamCounts[team]++;
	}

	// ALLIES
	if ( teamCounts[1] > 3 ) {
		if ( !playerClasses[PC_ENGINEER - 1] ) {
			playerClasses[PC_ENGINEER - 1][0] = G_NeedEngineers( TEAM_ALLIES ) ? 0 : 1;
		}

		cnt = 0;
		for ( i = 0; i < NUM_PLAYER_CLASSES; i++ ) {
			if ( !playerClasses[i][0] ) {
				cnt++;
			}
		}

		if ( cnt != 0 ) {
			cnt = rand() % cnt;

			for ( i = 0; i < NUM_PLAYER_CLASSES; i++ ) {
				if ( !playerClasses[i][0] ) {
					if ( cnt-- == 0 ) {
						G_SendSystemMessage( SM_NEED_MEDIC + i, TEAM_AXIS );
					}
				}
			}
		}
	}

	// AXIS
	if ( teamCounts[0] > 3 ) {
		if ( !playerClasses[PC_ENGINEER - 1] ) {
			playerClasses[PC_ENGINEER - 1][1] = G_NeedEngineers( TEAM_AXIS ) ? 0 : 1;
		}

		cnt = 0;
		for ( i = 0; i < NUM_PLAYER_CLASSES; i++ ) {
			if ( !playerClasses[i][1] ) {
				cnt++;
			}
		}

		if ( cnt != 0 ) {
			cnt = rand() % cnt;

			for ( i = 0; i < NUM_PLAYER_CLASSES; i++ ) {
				if ( !playerClasses[i][1] ) {
					if ( cnt-- == 0 ) {
						G_SendSystemMessage( SM_NEED_MEDIC + i, TEAM_ALLIES );
					}
				}
			}
		}
	}
}

void G_CheckMenDown( void ) {
	int alive[2], dead[2];
	gentity_t* ent;
	int i, team;

	memset( dead, 0, sizeof( dead ) );
	memset( alive, 0, sizeof( alive ) );

	for ( i = 0, ent = g_entities; i < level.maxclients; i++, ent++ ) {
		if ( !ent->client || !ent->inuse ) {
			break;
		}

		// don't want spectators
		if ( ent->client->sess.sessionTeam < TEAM_AXIS ||
			 ent->client->sess.sessionTeam > TEAM_ALLIES ) {
			continue;
		}

		team = ent->client->sess.sessionTeam == TEAM_AXIS ? 0 : 1;

		if ( ent->health <= 0 ) {
			dead[team]++;
		} else {
			alive[team]++;
		}
	}

	if ( dead[0] + alive[0] >= 4 && ( dead[0] >= ( ( dead[0] + alive[0] ) * 0.75f ) ) ) {
		G_SendSystemMessage( SM_LOST_MEN, TEAM_AXIS );
	}

	if ( dead[1] + alive[1] >= 4 && ( dead[1] >= ( ( dead[1] + alive[1] ) * 0.75f ) ) ) {
		G_SendSystemMessage( SM_LOST_MEN, TEAM_ALLIES );
	}
}