#include <stdlib.h>
#include <string.h>
#include "htmlTranslator.h"

char* html_to_bash_format(const char* input) {
    if (!input) return NULL;
    
    // Großzügiger Puffer
    size_t max_len = strlen(input) * 4 + 1;
    char* result = (char*)malloc(max_len);
    if (!result) return NULL;
    
    char* dest = result;
    const char* src = input;
    
    while (*src) {
        // Tabulatoren abfangen und durch EIN Leerzeichen ersetzen.
        // Verhindert, dass das Terminal-Rendering den ASCII-Kasten zerreißt.
        if (*src == '\t') {
            *dest++ = ' ';
            src++;
            continue;
        }
        
        // Erkennung für <br>, <BR>, <br/>, <br > etc.
        if (src[0] == '<' && (src[1] == 'b' || src[1] == 'B') && (src[2] == 'r' || src[2] == 'R')) {
            const char *temp = src + 3;
            // Überspringe eventuelle Leerzeichen oder Slashes im Tag
            while (*temp == ' ' || *temp == '/') temp++;
            
            if (*temp == '>') {
                *dest++ = '\n';
                src = temp + 1;
                continue;
            }
        }
        
        // Fettschrift (Case-Insensitive)
        if (strncmp(src, "<b>", 3) == 0 || strncmp(src, "<B>", 3) == 0) {
            strcpy(dest, "\033[1m");  
            dest += 4;
            src += 3;
            continue;
        }
        if (strncmp(src, "</b>", 4) == 0 || strncmp(src, "</B>", 4) == 0) {
            strcpy(dest, "\033[22m"); 
            dest += 5;
            src += 4;
            continue;
        }
        
        // Kursiv (Case-Insensitive)
        if (strncmp(src, "<i>", 3) == 0 || strncmp(src, "<I>", 3) == 0) {
            strcpy(dest, "\033[3m");  
            dest += 4;
            src += 3;
            continue;
        }
        if (strncmp(src, "</i>", 4) == 0 || strncmp(src, "</I>", 4) == 0) {
            strcpy(dest, "\033[23m"); 
            dest += 5;
            src += 4;
            continue;
        }
        
        // HTML-Leerzeichen
        if (strncmp(src, "&nbsp;", 6) == 0) {
            *dest++ = ' ';            
            src += 6;
            continue;
        }
        
        // Normales Zeichen kopieren
        *dest++ = *src++;         
    }
    *dest = '\0'; 
    
    char* optimized = realloc(result, (dest - result) + 1);
    return optimized ? optimized : result;
}