#include "precompiled.h"

#include "ObjectEntry.h"
#include "ObjectManager.h"
#include "ObjectBase.h"
#include "Model.h"
#include "ModelDef.h"
#include "CLogger.h"
#include "MaterialManager.h"
#include "MeshManager.h"

#include "UnitManager.h"
#include "Unit.h"

#include "ps/Xeromyces.h"
#include "ps/XMLWriter.h"

#include "lib/res/vfs.h"

#define LOG_CATEGORY "graphics"


CObjectEntry::CObjectEntry(int type, CObjectBase* base)
: m_Model(0), m_Type(type), m_Base(base)
{
	m_IdleAnim=0;
	m_WalkAnim=0;
	m_DeathAnim=0;
	m_CorpseAnim=0;
	m_MeleeAnim=0;
	m_RangedAnim=0;
}

CObjectEntry::~CObjectEntry()
{
	for (size_t i=0;i<m_Animations.size();i++) {
		delete m_Animations[i].m_AnimData;
	}

	delete m_Model;
}

bool CObjectEntry::BuildModel()
{
	// check we've enough data to consider building the object
	if (m_ModelName.Length()==0 || m_TextureName.Length()==0) {
		return false;
	}

	// get the root directory of this object
	CStr dirname=g_ObjMan.m_ObjectTypes[m_Type].m_Name;

	// remember the old model so we can replace any models using it later on
	CModelDefPtr oldmodeldef=m_Model ? m_Model->GetModelDef() : CModelDefPtr();

	const char* modelfilename = m_ModelName.c_str();

	// try and create a model
	CModelDefPtr modeldef (g_MeshManager.GetMesh(modelfilename));
	if (!modeldef)
	{
		LOG(ERROR, LOG_CATEGORY, "CObjectEntry::BuildModel(): Model %s failed to load", modelfilename);
		return false;
	}

	// delete old model, create new 
	delete m_Model;
	m_Model=new CModel;
	m_Model->SetTexture((const char*) m_TextureName);
	m_Model->SetMaterial(g_MaterialManager.LoadMaterial(m_Base->m_Material));
	m_Model->InitModel(modeldef);

	// calculate initial object space bounds, based on vertex positions
	m_Model->CalcObjectBounds();

	// load animations
	for (uint t = 0; t < m_Animations.size(); t++)
	{
		if (m_Animations[t].m_FileName.Length() > 0)
		{
			const char* animfilename = m_Animations[t].m_FileName.c_str();
			m_Animations[t].m_AnimData = m_Model->BuildAnimation(animfilename,m_Animations[t].m_Speed);

			CStr AnimNameLC = m_Animations[t].m_AnimName.LowerCase();

			if (AnimNameLC == "idle")
				m_IdleAnim = m_Animations[t].m_AnimData;
			else
			if (AnimNameLC == "walk")
				m_WalkAnim = m_Animations[t].m_AnimData;
			else
			if (AnimNameLC == "attack")
				m_MeleeAnim = m_Animations[t].m_AnimData;
			else
			if (AnimNameLC == "death")
				m_DeathAnim = m_Animations[t].m_AnimData;
			else
			if (AnimNameLC == "decay")
				m_CorpseAnim = m_Animations[t].m_AnimData;
			//else
			//	debug_out("Invalid animation name '%s'\n", (const char*)AnimNameLC);
		}
		else
		{
			// FIXME, RC - don't store invalid animations (possible?)
			m_Animations[t].m_AnimData=0;
		}
	}
	// start up idling
	if (! m_Model->SetAnimation(m_IdleAnim))
		LOG(ERROR, LOG_CATEGORY, "Failed to set idle animation in model \"%s\"", modelfilename);

	// build props - TODO, RC - need to fix up bounds here
	for (uint p=0;p<m_Props.size();p++) {
		const CObjectBase::Prop& prop=m_Props[p];
		SPropPoint* proppoint=modeldef->FindPropPoint((const char*) prop.m_PropPointName);
		if (proppoint) {
			CObjectEntry* oe=g_ObjMan.FindObject(prop.m_ModelName);
			if (oe) {
				// try and build model if we haven't already got it
				if (!oe->m_Model) oe->BuildModel();
				if (oe->m_Model) {
					CModel* propmodel=oe->m_Model->Clone();
					m_Model->AddProp(proppoint,propmodel);
					if (oe->m_WalkAnim) propmodel->SetAnimation(oe->m_WalkAnim);
				} else {
					LOG(ERROR, LOG_CATEGORY, "Failed to build prop model \"%s\" on actor \"%s\"",(const char*) m_Base->m_Name,(const char*) prop.m_ModelName);
				}
			}
		} else {
			LOG(ERROR, LOG_CATEGORY, "Failed to matching prop point called \"%s\" in model \"%s\"", (const char*)prop.m_PropPointName, modelfilename);
		}
	}

	// setup flags
	if (m_Base->m_Properties.m_CastShadows) {
		m_Model->SetFlags(m_Model->GetFlags()|MODELFLAG_CASTSHADOWS);
	}

	// replace any units using old model to now use new model; also reprop models, if necessary
	// FIXME, RC - ugh, doesn't recurse correctly through props
	const std::vector<CUnit*>& units=g_UnitMan.GetUnits();
	for (uint i=0;i<units.size();++i) {
		CModel* unitmodel=units[i]->GetModel();
		if (unitmodel->GetModelDef()==oldmodeldef) {			
			unitmodel->InitModel(m_Model->GetModelDef());
			unitmodel->SetFlags(m_Model->GetFlags());

			const std::vector<CModel::Prop>& newprops=m_Model->GetProps();
			for (uint j=0;j<newprops.size();j++) {
				unitmodel->AddProp(newprops[j].m_Point,newprops[j].m_Model->Clone());
			}
		}

		std::vector<CModel::Prop>& mdlprops=unitmodel->GetProps();
		for (uint j=0;j<mdlprops.size();j++) {
			CModel::Prop& prop=mdlprops[j];
			if (prop.m_Model) {
				if (prop.m_Model->GetModelDef()==oldmodeldef) {
					delete prop.m_Model;
					prop.m_Model=m_Model->Clone();
				}
			}
		}
	}

	return true;
}

void CObjectEntry::ApplyRandomVariant(CObjectBase::variation_key& vars)
{
	CStr chosenTexture;
	CStr chosenModel;
	std::map<CStr, CObjectBase::Prop> chosenProps;
	std::map<CStr, CObjectBase::Anim> chosenAnims;

	CObjectBase::variation_key::const_iterator vars_it = vars.begin();

	for (std::vector<std::vector<CObjectBase::Variant> >::iterator grp = m_Base->m_Variants.begin();
		grp != m_Base->m_Variants.end();
		++grp)
	{
		CObjectBase::Variant& var (grp->at(*(vars_it++)));

		if (var.m_TextureFilename.Length())
			chosenTexture = var.m_TextureFilename;

		if (var.m_ModelFilename.Length())
			chosenModel = var.m_ModelFilename;

		for (std::vector<CObjectBase::Prop>::iterator it = var.m_Props.begin(); it != var.m_Props.end(); ++it)
			chosenProps[it->m_PropPointName] = *it;

		for (std::vector<CObjectBase::Anim>::iterator it = var.m_Anims.begin(); it != var.m_Anims.end(); ++it)
			chosenAnims[it->m_AnimName] = *it;
	}

	m_TextureName = chosenTexture;
	m_ModelName = chosenModel;

	for (std::map<CStr, CObjectBase::Prop>::iterator it = chosenProps.begin(); it != chosenProps.end(); ++it)
		m_Props.push_back(it->second);

	for (std::map<CStr, CObjectBase::Anim>::iterator it = chosenAnims.begin(); it != chosenAnims.end(); ++it)
		m_Animations.push_back(it->second);
}


CSkeletonAnim* CObjectEntry::GetNamedAnimation( CStr animationName )
{
	for( uint t = 0; t < m_Animations.size(); t++ )
	{
		if( m_Animations[t].m_AnimName == animationName )
			return( m_Animations[t].m_AnimData );
	}
	return( NULL );
}


CObjectBase::Prop* CObjectEntry::FindProp(const char* proppointname)
{
	for (size_t i=0;i<m_Props.size();i++) {
		if (strcmp(proppointname,m_Props[i].m_PropPointName)==0) return &m_Props[i];
	}

	return 0;
}