#include <stdlib.h>
#include <stdio.h>
#include <SDL/SDL.h>
#include "structures.h"
#include "constantes.h"
#include "prototypes.h"
#include <SDL/SDL_ttf.h>
#include <SDL/SDL_image.h>
#include <string.h>

static void blit_chr_infos(SURFACES *surfaces, struct character_t *chr)
{
    TTF_Font *police=NULL;
    SDL_Color fg={132,215,107,0},bg={100,0,0,0};
    char string[256];

    SDL_Surface *surf_hp;
    SDL_Surface *surf_mp;

    police=TTF_OpenFont("TIMESBI.TTF",18);
    sprintf(string, "PV %d/%d ", chr->hp, chr->max_hp);
    surf_hp = TTF_RenderText_Shaded(police, string, fg, bg);
    sprintf(string, "PM %d/%d ", chr->mp, chr->max_mp);
    surf_mp = TTF_RenderText_Shaded(police, string, fg, bg);

    chr->pos_hp.x = chr->pos.x + chr->def_surf->w / 2 - surf_hp->w / 2;
    chr->pos_mp.x = chr->pos.x + chr->def_surf->w / 2 - surf_mp->w / 2;
    chr->pos_hp.y = chr->pos.y + chr->def_surf->h - surf_hp->h - surf_mp->h;
    chr->pos_mp.y = chr->pos_hp.y + surf_mp->h;

    SDL_BlitSurface(surf_hp, NULL, surfaces->Pecran, &chr->pos_hp);
    SDL_BlitSurface(surf_mp, NULL, surfaces->Pecran, &chr->pos_mp);

    chr->pos_hp.w = surf_hp->w;
    chr->pos_hp.h = surf_hp->h;
    chr->pos_mp.w = surf_mp->w;
    chr->pos_mp.h = surf_mp->h;

    SDL_FreeSurface(surf_hp);
    SDL_FreeSurface(surf_mp);

    TTF_CloseFont(police);
}

void blit_character(SURFACES *surfaces, struct character_t *chr)
{
    SDL_BlitSurface(chr->surf, NULL, surfaces->Pecran, &chr->pos);

    if (!chr->alive) {
        SDL_Rect pos_dead;

        pos_dead.x = chr->pos.x + chr->surf->w / 2 - surfaces->Pmort->w / 2;
        pos_dead.y = chr->pos.y + chr->surf->h / 2 - surfaces->Pmort->h / 2;

        SDL_BlitSurface(surfaces->Pmort, NULL, surfaces->Pecran, &pos_dead);
    }
    blit_chr_infos(surfaces, chr);
}

void blit_team(SURFACES *surfaces, struct team_t *team)
{
    for (int i = 0; i < team->chr_cnt; i++) {
        blit_character(surfaces, &team->chrs[i]);
    }
}

static void display_target_infos(SURFACES *surfaces, POSITIONS *positions, struct character_t *chr)
{
    SDL_Color color = {0x8a, 0x00, 0x00, 0x00};
    TTF_Font *font = TTF_OpenFont("times.ttf", 20);
    SDL_Surface *surf_name;
    SDL_Rect pos_name;;

    /* display the information frame */
    SDL_BlitSurface(surfaces->Pcadrecible, NULL, surfaces->Pecran, &positions->Vpositioncadrecible);

    /* display the name of the character */
    surf_name = TTF_RenderText_Blended(font, chr->name, color);

    pos_name.x = positions->Vpositioncadrecible.x + surfaces->Pcadrecible->w / 2 - surf_name->w / 2;
    pos_name.y = positions->Vpositioncadrecible.y + 10;

    /* display the affinities of the character */
    blit_character_affinities(surfaces, positions, chr);

    /* display its HP / MP */
    Fblitterpvcible (surfaces,positions, chr);
    Fblitterpmcible (surfaces,positions, chr);

    SDL_BlitSurface(surf_name, NULL, surfaces->Pecran, &pos_name);

    SDL_FreeSurface(surf_name);
    TTF_CloseFont(font);
}

void update_selected_target(SURFACES *surfaces, POSITIONS *positions, struct character_t *chr)
{
    /* clear cursor */
    SDL_BlitSurface(surfaces->Pfondjeu, &positions->last_cursor, surfaces->Pecran, &positions->last_cursor);

    if (chr == NULL) {
        /* clear the target informations frame */
        SDL_BlitSurface(surfaces->Pfondjeu, &positions->Vpositioncadrecible, surfaces->Pecran, &positions->Vpositioncadrecible);
    } else {
        /* display the new cursor */
        positions->last_cursor.x = chr->pos_curs.x;
        positions->last_cursor.y = chr->pos_curs.y;

        positions->last_cursor.w = chr->curs->w;
        positions->last_cursor.h = chr->curs->h;

        SDL_BlitSurface(chr->curs, NULL, surfaces->Pecran, &chr->pos_curs);

        display_target_infos(surfaces, positions, chr);
    }
}

void Fchangercurseurpersos (SURFACES *surfaces, POSITIONS *positions, struct character_t *chr)
{
    SDL_Color couleur={120,0,0,0};
    TTF_Font *police=NULL;
    const char *string;

    if (surfaces->Pnomcible!=NULL)
    {
        SDL_FreeSurface (surfaces->Pnomcible);
        surfaces->Pnomcible=NULL;
    }
    police=TTF_OpenFont("times.ttf",20);

    SDL_BlitSurface (surfaces->Pfondjeu,&positions->Vpositioncurseurallies,surfaces->Pecran,&positions->Vpositioncurseurallies);

    SDL_BlitSurface(surfaces->Pcadrecible, NULL, surfaces->Pecran, &positions->Vpositioncadrecible);

    positions->Vpositioncurseurallies.x = chr->pos.x + 20 + chr->surf->w;
    positions->Vpositioncurseurallies.y = chr->pos.y + chr->surf->h / 2 - surfaces->Pcurseurallies->h / 2;

    SDL_BlitSurface(surfaces->Pcurseurallies, NULL, surfaces->Pecran, &positions->Vpositioncurseurallies);

    string = (chr->name) ? chr->name : "NO NAME";

    surfaces->Pnomcible = TTF_RenderText_Blended (police, string, couleur);

    positions->Vpositionnomcible.x = positions->Vpositioncadrecible.x + surfaces->Pcadrecible->w / 2 - surfaces->Pnomcible->w / 2;
    positions->Vpositionnomcible.y = positions->Vpositioncadrecible.y + 10;
    blit_character_affinities(surfaces, positions, chr);

    Fblitterpvcible (surfaces,positions, chr);
    Fblitterpmcible (surfaces,positions, chr);
    SDL_BlitSurface (surfaces->Pnomcible,NULL,surfaces->Pecran,&positions->Vpositionnomcible);
    SDL_Flip (surfaces->Pecran);
    TTF_CloseFont(police);
}

void Fchangeractionselectionnee(SURFACES *surfaces, POSITIONS *positions,int selection,int page,int nbactions,int type,OBJET *objets)
{
    int i;
    TTF_Font *police=NULL;
    SDL_Color couleur={0,0,0,0};
    char chaine[3][50];
    police=TTF_OpenFont ("TIMESBI.TTF",20);
    SDL_BlitSurface(surfaces->Pfondjeu,&positions->Vpositioncadreactions,surfaces->Pecran,&positions->Vpositioncadreactions);
    SDL_BlitSurface (surfaces->Pcadreactions,NULL,surfaces->Pecran,&positions->Vpositioncadreactions);
    for(i=0;i<nbactions;i++)
    {
        if (selection==i)
            SDL_BlitSurface (surfaces->Pactionselectionnee,NULL,surfaces->Pecran,&positions->Vpositionactionselectionnee[selection-page*3]);
    }
    for(i=0;i<3;i++)
    {
        if(surfaces->Pnomactions[i]!=NULL)
        {
            SDL_FreeSurface(surfaces->Pnomactions[i]);
            surfaces->Pnomactions[i]=NULL;
        }
    }
    if(type==ACTIONS)
    {
        if(page==0)
        {
            ECRIRE("ATTAQUE",0);
            ECRIRE("MAGIE BLANCHE",1);
            ECRIRE("MAGIE NOIRE",2);
        }
        else if(page==1)
        {
            ECRIRE("TECHNIQUES",0);
            ECRIRE("OBJETS",1);
        }
    }
    else if(type==MAGIE_BLANCHE)
    {
        if (page==0)
        {
            ECRIRE("SOIN",0);
        }
    }
    else if(type==MAGIE_NOIRE)
    {
        if(page==0)
        {
            ECRIRE("FEU",0);
            ECRIRE("GLACE",1);
            ECRIRE("EAU",2);
        }
        else if(page==1)
        {
            ECRIRE("TONNERRE",0);
            ECRIRE("CHOC",1);
        }
    }
    else if(type==OBJETS)
    {
        if(page==0)
        {
            ECRIRE("POTION",0);
            ECRIRE("ETHER",1);
            ECRIRE("POTION +",2);
            sprintf(chaine[0],"%d",objets->potions);
            surfaces->Pquantite[0]=TTF_RenderText_Blended(police,chaine[0],couleur);
            sprintf(chaine[1],"%d",objets->ethers);
            surfaces->Pquantite[1]=TTF_RenderText_Blended(police,chaine[1],couleur);
            sprintf(chaine[2],"%d",objets->potionsplus);
            surfaces->Pquantite[2]=TTF_RenderText_Blended(police,chaine[2],couleur);
            SDL_BlitSurface(surfaces->Pquantite[0],NULL,surfaces->Pecran,&positions->Vpositionquantite[0]);
            SDL_BlitSurface(surfaces->Pquantite[1],NULL,surfaces->Pecran,&positions->Vpositionquantite[1]);
            SDL_BlitSurface(surfaces->Pquantite[2],NULL,surfaces->Pecran,&positions->Vpositionquantite[2]);
        }
        else if(page==1)
        {
            ECRIRE("ETHER +",0);
            sprintf(chaine[0],"%d",objets->ethersplus);
            surfaces->Pquantite[0]=TTF_RenderText_Blended(police,chaine[0],couleur);
            SDL_BlitSurface(surfaces->Pquantite[0],NULL,surfaces->Pecran,&positions->Vpositionquantite[0]);
        }
    }
    if (page==nbactions/3)
    {
        if(3*(page+1)-nbactions==1)
            SDL_BlitSurface (surfaces->Pactiondesactivee,NULL,surfaces->Pecran,&positions->Vpositionactionselectionnee[2]);
        if(3*(page+1)-nbactions==2)
        {
            SDL_BlitSurface (surfaces->Pactiondesactivee,NULL,surfaces->Pecran,&positions->Vpositionactionselectionnee[2]);
            SDL_BlitSurface (surfaces->Pactiondesactivee,NULL,surfaces->Pecran,&positions->Vpositionactionselectionnee[1]);
        }
    }
    SDL_Flip(surfaces->Pecran);
    TTF_CloseFont (police);
}

static void display_incr(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, unsigned int incr, SDL_Color color)
{
    TTF_Font *font = TTF_OpenFont("TIMES.TTF", 30);
    char string[256];
    SDL_Surface *surf;

    sprintf(string, "%d", incr);

    TTF_SetFontStyle(font, TTF_STYLE_BOLD);
    surf = TTF_RenderText_Blended(font, string, color);

    blit_character(surfaces, target);
    SDL_BlitSurface(surf, NULL, surfaces->Pecran, &target->pos_curs);

    positions->Vpositiondegats.x = target->pos_curs.x;
    positions->Vpositiondegats.y = target->pos_curs.y;
    positions->Vpositiondegats.w = surf->w;
    positions->Vpositiondegats.h = surf->h;

    SDL_FreeSurface(surf);
    TTF_CloseFont(font);
}

static void incr_hp(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, int incr)
{
    SDL_Color color;

    target->hp += incr;

    if (target->hp <= 0) {
        target->hp = 0;
        target->alive = false;
    } else if (target->hp > target->max_hp) {
        target->hp = target->max_hp;
    }

    color = (incr < 0) ? (SDL_Color){0xe0, 0x00, 0x00, 0x00} : (SDL_Color){0x00, 0xe0, 0x00, 0x00};

    display_incr(surfaces, positions, target, (incr >= 0) ? incr : -incr, color);
}

static void incr_mp(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, int incr)
{
    SDL_Color color;

    target->hp += incr;

    if (target->mp <= 0) {
        target->mp = 0;
    } else if (target->mp > target->max_mp) {
        target->mp = target->max_mp;
    }

    color = (incr < 0) ? (SDL_Color){0xe0, 0x00, 0x00, 0x00} : (SDL_Color){0x00, 0xe0, 0x00, 0x00};

    display_incr(surfaces, positions, target, (incr >= 0) ? incr : -incr, color);
}

void damage_target_hp(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, int damages)
{
    incr_hp(surfaces, positions, target, -damages);
}

void cure_target_hp(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, int cure)
{
    incr_hp(surfaces, positions, target, cure);
}

void damage_target_mp(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, int damages)
{
    incr_mp(surfaces, positions, target, -damages);
}

void cure_target_mp(SURFACES *surfaces, POSITIONS *positions, struct character_t *target, int cure)
{
    incr_mp(surfaces, positions, target, cure);
}

void blit_character_affinities(SURFACES *surfaces, POSITIONS *positions, const struct character_t *chr)
{
    static const enum affinity_t affinities[] = {
        AFFINITY_SENSITIVE,
        AFFINITY_RESISTANCE,
        AFFINITY_INVULNERABILITY,
        AFFINITY_ABSORPTION,
    };

    for (int i = 0; i < countof(affinities); ++i) {
        for (enum element_t elmt = 0; elmt < ELEMENT_COUNT; ++elmt) {
            if (chr->affinities[elmt] == affinities[i]) {
                SDL_BlitSurface (surfaces->Pactive,NULL,surfaces->Pecran,&positions->Vpositionactivedesactive[i * ELEMENT_COUNT + elmt]);
            } else {
                SDL_BlitSurface (surfaces->Pdesactive,NULL,surfaces->Pecran,&positions->Vpositionactivedesactive[i * ELEMENT_COUNT + elmt]);
            }
        }
    }
}

void Fblitterpvcible (SURFACES *surfaces,POSITIONS *positions, const struct character_t *chr)
{
    TTF_Font *police = NULL;
    SDL_Color couleur = {132,215,107,0};
    char chaine[50];

    if (surfaces->Ppvcible != NULL)
    {
        SDL_FreeSurface (surfaces->Ppvcible);
        surfaces->Ppvcible=NULL;
    }

    sprintf (chaine,"%d/%d", chr->hp, chr->max_hp);
    police=TTF_OpenFont ("TIMESBI.TTF",18);
    surfaces->Ppvcible=TTF_RenderText_Blended (police,chaine,couleur);
    SDL_BlitSurface (surfaces->Ppvcible,NULL,surfaces->Pecran,&positions->Vpositionpvcible);
    TTF_CloseFont (police);
}

void Fblitterpmcible (SURFACES *surfaces,POSITIONS *positions, const struct character_t *chr)
{
    TTF_Font *police = NULL;
    SDL_Color couleur = {132,215,107,0};
    char chaine[50];

    if (surfaces->Ppmcible != NULL)
    {
        SDL_FreeSurface (surfaces->Ppmcible);
        surfaces->Ppmcible=NULL;
    }
    sprintf (chaine,"%d/%d", chr->mp, chr->max_mp);
    police=TTF_OpenFont ("TIMESBI.TTF",18);
    surfaces->Ppmcible=TTF_RenderText_Blended (police,chaine,couleur);
    SDL_BlitSurface (surfaces->Ppmcible,NULL,surfaces->Pecran,&positions->Vpositionpmcible);
    TTF_CloseFont (police);
}

void Fblitterfond(SURFACES* surfaces)
{
    SDL_Rect position;
    position.x=0;
    position.y=0;
    surfaces->Pfondjeu=IMG_Load("images/jeu/textures/background.jpg");
    SDL_BlitSurface(surfaces->Pfondjeu,NULL,surfaces->Pecran,&position);
    SDL_Flip(surfaces->Pecran);
}