/*
* Part of LaGUI demonstration programs
* Copyright (C) 2022-2023 Wu Yiming
*
* This program 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.
*
* This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "la_5.h"

extern LA MAIN;

STRUCTURE(Bowl){
    laListItem    Item;
    laSafeString* Name;
    laListHandle  Fruits;
};
STRUCTURE(Basket){
    int pad;
    int example;
    laSafeString* name;
    laListHandle Stuff;
    laListHandle Bowls;
};
#define FRUIT_TYPE_APPLE 1
#define FRUIT_TYPE_PEAR 2
STRUCTURE(Fruit){
    laListItem   Item;
    int          Type;
    Fruit*       WhyNot;
    laListHandle*  Parent;
    Bowl*        Container;
    laListHandle Bundled;
};
STRUCTURE(Apple){
    Fruit  Base;
    real   HowSweet;
};
STRUCTURE(Pear){
    Fruit Base;
    int Really;
};

Basket B={0};

laPropContainer* pcApple,*pcPear;
laProp* pBasket, *pFruit, *pBowl;

int INV_AddBowl(laOperator* a, laEvent* e){
    Bowl* b=memAcquireHyper(sizeof(Bowl));
    lstAppendItem(&B.Bowls,b);

    laRecordAndPushProp(0, "basket");laNotifyUsers("basket");
    laPrintDBInstInfo();

    return LA_FINISHED;
}
int INV_RemoveBowl(laOperator* a, laEvent* e){
    Bowl* b=a->This?a->This->EndInstance:B.Bowls.pLast; if(!b) return LA_FINISHED;
    
    lstRemoveItem(&B.Bowls, b);
    memLeave(b);

    laRecordAndPushProp(0, "basket");laNotifyUsers("basket");
    laPrintDBInstInfo();

    return LA_FINISHED;
}
int INV_AddFruit(laOperator* a, laEvent* e){
    laListHandle* into=(a->This&&a->This->LastPs->p==pBowl)?&((Bowl*)a->This->EndInstance)->Fruits:0;
    if(!into) into=a->This?&((Fruit*)a->This->EndInstance)->Bundled:0;

    char* stype; int size=sizeof(Apple); int type=FRUIT_TYPE_APPLE;
    if(stype=strGetArgumentString(a->ExtraInstructionsP,"type")){
        if(!strcmp(stype,"pear")) {size=sizeof(Pear);type=FRUIT_TYPE_PEAR;}
    }
    Fruit* f=memAcquire(size); f->Type=type;
    if(into){ lstAppendItem(into, f); f->Parent=into; laNotifyUsers("basket"); /*laNotifyUsersPPPath(a->This,"base.bundled");*/ }
    else{ lstAppendItem(&B.Stuff, f); laNotifyUsers("basket");}

    laRecordAndPushProp(0, "basket");
    laPrintDBInstInfo();

    return LA_FINISHED;
}
void DestroyFruit(Fruit* f){
    Fruit* NextF;
    for(Fruit*fi=f->Bundled.pFirst;fi;fi=NextF){
        NextF=fi->Item.pNext;
        DestroyFruit(fi);
    }
    memLeave(f);
}
int INV_RemoveFruit(laOperator* a, laEvent* e){
    Fruit* f=a->This?a->This->EndInstance:0; laListHandle* l;
    
    if(f->Parent){ l=f->Parent;lstRemoveItem(l,f); laNotifyUsers("basket"); }
    else{ l=&B.Stuff; lstRemoveItem(l,f);laNotifyUsers("basket"); }

    DestroyFruit(f);

    laRecordAndPushProp(0, "basket");

    return LA_FINISHED;
}
int INV_MoveFruit(laOperator* a, laEvent* e){
    Fruit* f=a->This?a->This->EndInstance:0; laListHandle* l; int direction=0; char* dir;
    if(dir=strGetArgumentString(a->ExtraInstructionsP,"direction")){
        if(!strcmp(dir,"up")) {direction=1;}
    }
    
    if(f->Parent){ l=f->Parent; laNotifyUsers("basket"); /*laNotifyUsersPPPath(a->This,"base.parent.bundled");*/ }
    else{ l=&B.Stuff; laNotifyUsers("basket"); }

    if(direction) lstMoveUp(l,f); 
    else lstMoveDown(l,f); 

    laRecordAndPushProp(0, "basket");

    return LA_FINISHED;
}
int INV_PushBasketState(laOperator* a, laEvent* e){
    laRecordAndPushProp(0, "basket");
    logPrint("Pushed state: \"basket\"\n");
    return LA_FINISHED;
}

laPropContainer* FruitGetType(Fruit* f){
    if(f->Type==FRUIT_TYPE_APPLE) return pcApple;
    if(f->Type==FRUIT_TYPE_PEAR) return pcPear;
    return pcApple;
}

void* FruitGetBasket(void* none){
    return &B;
}

void* BowlGetFirst(void* none, void *UNUSED){
    return B.Bowls.pFirst;
}
void* FruitGetFirst(void* none, void *UNUSED){
    return B.Stuff.pFirst;
}

void FruitsPanel(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    laColumn* cl;
    laSplitColumn(uil,c,0.5);
    cl=laLeftColumn(c,0);
    
    laShowItem(uil,c,0,"basket");
    
    laUiItem* r=laBeginRow(uil,c,0,0);
    strSafeSet(&laShowItem(uil,c,0,"FRUIT_add")->ExtraInstructions,"type=apple;icon=🍏;text=Add Apple;");
    strSafeSet(&laShowItem(uil,c,0,"FRUIT_add")->ExtraInstructions,"type=pear;icon=🍐;text=Add Pear;");
    laShowItem(uil,c,0,"BOWL_add");
    laEndRow(uil,r);
    laShowSeparator(uil,c);

    r=laBeginRow(uil,c,0,0);
    laShowItem(uil,c,0,"LA_undo");
    laShowItem(uil,c,0,"LA_redo");
    laShowItem(uil,c,0,"STATE_push");
    laEndRow(uil,r);    
}
void UIBowl(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    laColumn* cl,*cr;
    laSplitColumn(uil,c,0.4);
    cl=laLeftColumn(c, 1);
    cr=laRightColumn(c,0);
    laUiItem*u;

    laUiItem* r=laBeginRow(uil,cr,1,0);
    laShowItem(uil,cr,This,"name")->Expand=1;
    laShowItem(uil,cr,This,"remove")->Flags|=LA_UI_FLAGS_ICON;
    laEndRow(uil,r);
    
    r=laOnConditionToggle(uil,cl,0,0,0,0,0);{
        laShowItem(uil,cr,This,"fruits");
        laUiItem* r1=laBeginRow(uil,cr,0,0);
        strSafeSet(&laShowItem(uil,cr,This,"add_fruit")->ExtraInstructions,"type=apple;icon=🍏;text=Add Apple;");
        strSafeSet(&laShowItem(uil,cr,This,"add_fruit")->ExtraInstructions,"type=pear;icon=🍐;text=Add Pear;");
        laEndRow(uil,r1);
    }laEndCondition(uil,r);
}
void UIApple(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    laColumn* cl,*cr;
    laSplitColumn(uil,c,0.4);
    cl=laLeftColumn(c, 1);
    cr=laRightColumn(c,0);
    laUiItem*u;

    laUiItem* r=laBeginRow(uil,cr,1,0);
    laShowLabel(uil,cr,"Apple",0,0)->Expand=1;
    laShowItem(uil,cr,This,"how_sweet")->Expand=1;
    laShowItem(uil,cr,This,"base.why_not")->Expand=1;
    laShowItem(uil,cr,This,"base.container")->Expand=1;
    laShowItem(uil,cr,This,"base.remove")->Flags|=LA_UI_FLAGS_ICON;
    u=laShowItem(uil,cr,This,"base.move"); strSafeSet(&u->ExtraInstructions,"direction=up;icon=🡹;");u->Flags|=LA_UI_FLAGS_ICON;
    u=laShowItem(uil,cr,This,"base.move"); strSafeSet(&u->ExtraInstructions,"direction=down;icon=🡻;");u->Flags|=LA_UI_FLAGS_ICON;
    laEndRow(uil,r);
    r=laOnConditionToggle(uil,cl,0,0,0,0,0);{
        laShowItem(uil,cr,This,"base.bundled");
        laUiItem* r1=laBeginRow(uil,cr,0,0);
        strSafeSet(&laShowItem(uil,cr,This,"base.add")->ExtraInstructions,"type=apple;icon=🍏;text=Add Apple;");
        strSafeSet(&laShowItem(uil,cr,This,"base.add")->ExtraInstructions,"type=pear;icon=🍐;text=Add Pear;");
        laEndRow(uil,r1);
    }laEndCondition(uil,r);
}
void UIPear(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    laColumn* cl,*cr;
    laSplitColumn(uil,c,0.4);
    cl=laLeftColumn(c, 1);
    cr=laRightColumn(c,0);
    laUiItem*u;

    laUiItem* r=laBeginRow(uil,cr,1,0);
    laShowLabel(uil,cr,"Pear",0,0)->Expand=1;
    laShowItem(uil,cr,This,"really")->Expand=1;
    laShowItem(uil,cr,This,"base.why_not")->Expand=1;
    laShowItem(uil,cr,This,"base.container")->Expand=1;
    laShowItem(uil,cr,This,"base.remove")->Flags|=LA_UI_FLAGS_ICON;
    u=laShowItem(uil,cr,This,"base.move"); strSafeSet(&u->ExtraInstructions,"direction=up;icon=🡹;");u->Flags|=LA_UI_FLAGS_ICON;
    u=laShowItem(uil,cr,This,"base.move"); strSafeSet(&u->ExtraInstructions,"direction=down;icon=🡻;");u->Flags|=LA_UI_FLAGS_ICON;
    laEndRow(uil,r);
    r=laOnConditionToggle(uil,cl,0,0,0,0,0);{
        laShowItem(uil,cr,This,"base.bundled");
        laUiItem* r1=laBeginRow(uil,cr,0,0);
        strSafeSet(&laShowItem(uil,cr,This,"base.add")->ExtraInstructions,"type=apple;icon=🍏;text=Add Apple;");
        strSafeSet(&laShowItem(uil,cr,This,"base.add")->ExtraInstructions,"type=pear;icon=🍐;text=Add Pear;");
        laEndRow(uil,r1);
    }laEndCondition(uil,r);
}
void UIBowlSimple(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    laShowItemFull(uil,c,This,"name",LA_WIDGET_STRING_PLAIN, 0 ,0,0);
}
void UIFruitSimple(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    laShowItem(uil,c,This,"type");
}

void ScenePanel(laUiList *uil, laPropPack *This, laPropPack *DetachedProps, laColumn *UNUSED, int context){
    laColumn* c=laFirstColumn(uil);
    
    laUiItem* ui=laShowCanvas(uil,c,0,"tns.world",0,-1);
    laDefault3DViewOverlay(ui);
}

int RegisterEverything(){
    laRegisterUiTemplate("panel_fruit", "Fruits", FruitsPanel, 0, 0,0, 0,0,0);

    laCreateOperatorType("BOWL_add", "Add Bowl", "Add a bowl", 0,0,0,INV_AddBowl,0,'+',0);
    laCreateOperatorType("BOWL_remove", "Remove Bowl", "Remove a bowl", 0,0,0,INV_RemoveBowl,0,'-',0);
    laCreateOperatorType("FRUIT_add", "Add Fruit", "Add a fruit into the basket or bundle", 0,0,0,INV_AddFruit,0,'+',0);
    laCreateOperatorType("FRUIT_remove", "Remove Fruit", "Remove a fruit", 0,0,0,INV_RemoveFruit,0,'-',0);
    laCreateOperatorType("FRUIT_move", "Move Fruit", "Move a fruit", 0,0,0,INV_MoveFruit,0,'~',0);
    laCreateOperatorType("STATE_push", "Push State", "Push basket state", 0,0,0,INV_PushBasketState,0,0,0);

    laPropContainer* pc=laDefineRoot();
    laAddSubGroup(pc, "basket", "Basket", "The basket", "basket",0,0,0,-1,FruitGetBasket,0,0,0,0,0,0,LA_UDF_SINGLE|LA_UDF_LOCAL);
    laProp*p;
    
    pc=laAddPropertyContainer("bowl", "Bowl", "Some sort of a bowl", 0, UIBowl, sizeof(Bowl), 0, 0, 2);
    laAddStringProperty(pc,"name","Name","Name of the bowl",0,0,0,0,1,offsetof(Bowl,Name),0,0,0,0,LA_AS_IDENTIFIER);
    laAddSubGroup(pc, "fruits", "Fruits","Fruits","fruit",FruitGetType,0,0,-1,0,0,0,0,0,0,offsetof(Bowl,Fruits),0);
    laAddOperatorProperty(pc,"remove","Remove","Remove a bowl", "BOWL_remove", '-', 0);
    laAddOperatorProperty(pc,"add_fruit","Add","Add a fruit into the bowl", "FRUIT_add", '+', 0);

    pc=laAddPropertyContainer("basket", "Basket", "A basket of fruits", 0, 0, sizeof(Basket), 0, 0, 1|LA_UDF_LOCAL|LA_PROP_OTHER_ALLOC|LA_UDF_SINGLE);
    laAddIntProperty(pc,"example","Example","Example int",0,0,0,0,0,1,0,0,offsetof(Basket,example),0,0,0,0,0,0,0,0,0,0,0);
    laAddStringProperty(pc,"name","Name","Name of the basket",0,0,0,0,1,offsetof(Basket,name),0,0,0,0,LA_UDF_REFER);
    laAddSubGroup(pc, "stuff", "Stuff","Stuffs","fruit",FruitGetType,0,0,-1,0,0,0,0,0,0,offsetof(Basket,Stuff),0);
    pBowl = laAddSubGroup(pc, "bowls", "Bowls","Bowls","bowl",0,0,0,-1,0,0,0,0,0,0,offsetof(Basket,Bowls),0);

    pc=laAddPropertyContainer("fruit", "Fruit", "A fruit", 0, 0, sizeof(Fruit), 0, 0, 1);
    p=laAddEnumProperty(pc,"type","Type","Type",0,0,0,0,0,offsetof(Fruit,Type),0,0,0,0,0,0,0,0,0,LA_AS_IDENTIFIER|LA_READ_ONLY);
    laAddEnumItemAs(p,"APPLE","Apple","Apple", FRUIT_TYPE_APPLE, L'🍏');
    laAddEnumItemAs(p,"PEAR","Pear","Pear", FRUIT_TYPE_PEAR, L'🍐');
    pFruit = laAddSubGroup(pc, "bundled", "Bundled","Bundled","fruit",FruitGetType,0,0,-1,0,0,0,0,0,0,offsetof(Fruit,Bundled),0);
    laAddSubGroup(pc, "why_not", "Why Not","Why not try","fruit",0,LA_WIDGET_COLLECTION_SELECTOR,UIFruitSimple,offsetof(Fruit,WhyNot),FruitGetFirst,0,laget_ListNext,0,0,0,0,LA_UDF_REFER);
    laAddSubGroup(pc, "parent", "Parent","Parent","any_pointer",0,0,0,offsetof(Fruit,Parent),0,0,0,0,0,0,0,LA_UDF_REFER);
    laAddSubGroup(pc, "container", "Container","Container of this fruit","bowl",0,LA_WIDGET_COLLECTION_SELECTOR,UIBowlSimple,offsetof(Fruit, Container),BowlGetFirst,0,laget_ListNext,0,0,0,0,LA_UDF_REFER);
    laAddOperatorProperty(pc,"add","Add","Add a fruit into bundled", "FRUIT_add", '+', 0);
    laAddOperatorProperty(pc,"remove","Remove","Remove a fruit", "FRUIT_remove", '-', 0);
    laAddOperatorProperty(pc,"move","Move","Move a fruit", "FRUIT_move", '~', 0);

    pcApple=pc=laAddPropertyContainer("apple", "Apple", "An apple", 0, UIApple, sizeof(Apple), 0, 0, 1);
    laAddSubGroup(pc,"base", "Base","Base fruit","fruit",0,0,0,0,0,0,0,0,0,0,0,LA_UDF_SINGLE|LA_UDF_LOCAL);
    laAddFloatProperty(pc,"how_sweet","How Sweet","How sweet",0,0,0,100,0,0.1,0,0,offsetof(Apple,HowSweet),0,0,0,0,0,0,0,0,0,0,LA_AS_IDENTIFIER);

    pcPear=pc=laAddPropertyContainer("pear", "Pear", "A pear", 0, UIPear, sizeof(Pear), 0, 0, 1);
    laAddSubGroup(pc, "base","Base","Base fruit","fruit",0,0,0,0,0,0,0,0,0,0,0,LA_UDF_SINGLE|LA_UDF_LOCAL);
    p=laAddEnumProperty(pc,"really","Really","Really a pear?",LA_WIDGET_ENUM_CYCLE,0,0,0,0,offsetof(Pear,Really),0,0,0,0,0,0,0,0,0,LA_AS_IDENTIFIER);
    laAddEnumItemAs(p,"NAH","Nah","Nah I don't think so", 0, L'🤔');
    laAddEnumItemAs(p,"YEAH","Yeah","It's really a pear", 1, L'😄');
    
    laSaveProp("basket");

    tnsObject* s=tnsCreateRootObject("My Root");
    tnsObject* o=tnsCreateLight(s,"Sun",100,100,100,1,1);
    tnsVector3d target={0,0,0}, up={0,0,1};
    tnsLookAt(o,target,up);
}

int main(int argc, char *argv[]){
    laGetReady();

    RegisterEverything();

    laRefreshUDFRegistries();
    
    // Use this to save and load preference when exit and during start up
    // laEnsureUserPreferences();
    
    laAddRootDBInst("basket");

    laWindow* w = laDesignWindow(-1,-1,600,600);

    laLayout* l = laDesignLayout(w, "Fruit Layout");
    laBlock* b = l->FirstBlock;
    laPanel* p=laCreatePanel(b, "panel_fruit");

    laStartWindow(w);
    laMainLoop();
}