#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"

config_t g_config;

int load_config(const char *path) {
    FILE *f = fopen(path, "r");
    if (!f) return -1;
    
    char line[512];
    char current_section[64] = "";
    
    while (fgets(line, sizeof(line), f)) {
        char *p = line;
        while (*p == ' ' || *p == '\t') p++;
        if (*p == '\0' || *p == '#' || *p == ';') continue;
        
        if (*p == '[') {
            p++;
            char *end = strchr(p, ']');
            if (end) {
                *end = '\0';
                strncpy(current_section, p, sizeof(current_section) - 1);
                current_section[sizeof(current_section) - 1] = '\0';
            }
            continue;
        }
        
        char *eq = strchr(p, '=');
        if (!eq) continue;
        *eq = '\0';
        char *key = p;
        char *value = eq + 1;
        
        char *end_key = key + strlen(key) - 1;
        while (end_key > key && (*end_key == ' ' || *end_key == '\t')) {
            *end_key = '\0';
            end_key--;
        }
        
        while (*value == ' ' || *value == '\t') value++;
        char *end_val = value + strlen(value) - 1;
        while (end_val > value && (*end_val == ' ' || *end_val == '\t' || *end_val == '\r' || *end_val == '\n')) {
            *end_val = '\0';
            end_val--;
        }
        
        if (strcmp(current_section, "paths") == 0) {
            if (strcmp(key, "base_path") == 0) strncpy(g_config.base_path, value, sizeof(g_config.base_path) - 1);
            else if (strcmp(key, "template_path") == 0) strncpy(g_config.template_path, value, sizeof(g_config.template_path) - 1);
            else if (strcmp(key, "passwd_file") == 0) strncpy(g_config.passwd_file, value, sizeof(g_config.passwd_file) - 1);
        }
        else if (strcmp(current_section, "limits") == 0) {
            if (strcmp(key, "max_entries") == 0) g_config.max_entries = atoi(value);
        }
        else if (strcmp(current_section, "hidden") == 0) {
            if (strcmp(key, "dirs") == 0) {
                char *token = strtok(value, ",");
                g_config.hidden_dirs_count = 0;
                while (token && g_config.hidden_dirs_count < 10) {
                    while (*token == ' ') token++;
                    strncpy(g_config.hidden_dirs[g_config.hidden_dirs_count], token, 255);
                    g_config.hidden_dirs[g_config.hidden_dirs_count][255] = '\0';
                    g_config.hidden_dirs_count++;
                    token = strtok(NULL, ",");
                }
            }
            else if (strcmp(key, "files") == 0) {
                char *token = strtok(value, ",");
                g_config.hidden_files_count = 0;
                while (token && g_config.hidden_files_count < 10) {
                    while (*token == ' ') token++;
                    strncpy(g_config.hidden_files[g_config.hidden_files_count], token, 255);
                    g_config.hidden_files[g_config.hidden_files_count][255] = '\0';
                    g_config.hidden_files_count++;
                    token = strtok(NULL, ",");
                }
            }
        }
        else if (strcmp(current_section, "preview") == 0) {
            if (strcmp(key, "image") == 0) strncpy(g_config.preview_image, value, sizeof(g_config.preview_image) - 1);
            else if (strcmp(key, "text") == 0) strncpy(g_config.preview_text, value, sizeof(g_config.preview_text) - 1);
            else if (strcmp(key, "audio") == 0) strncpy(g_config.preview_audio, value, sizeof(g_config.preview_audio) - 1);
            else if (strcmp(key, "video") == 0) strncpy(g_config.preview_video, value, sizeof(g_config.preview_video) - 1);
            else if (strcmp(key, "pdf") == 0) strncpy(g_config.preview_pdf, value, sizeof(g_config.preview_pdf) - 1);
        }
    }
    
    fclose(f);
    return 0;
}

void set_default_config(void) {
    strcpy(g_config.base_path, "/home/romkazvo/www");
    strcpy(g_config.template_path, "/home/romkazvo/www/cgi-bin/template.html");
    strcpy(g_config.passwd_file, "/home/romkazvo/www/cgi-bin/.htpasswd");
    g_config.max_entries = 1000;
    g_config.hidden_dirs_count = 0;
    g_config.hidden_files_count = 0;
    strcpy(g_config.preview_image, "jpg,jpeg,png,gif,webp,bmp,svg,ico");
    strcpy(g_config.preview_text, "txt,md,html,htm,css,js,json,xml,csv");
    strcpy(g_config.preview_audio, "mp3,wav,ogg,flac,m4a,aac");
    strcpy(g_config.preview_video, "mp4,webm,ogv,mov,avi,mkv");
    strcpy(g_config.preview_pdf, "pdf");
}

int is_string_in_list(const char *str, const char *list) {
    if (!list || !*list) return 0;
    char temp[512];
    strncpy(temp, list, sizeof(temp) - 1);
    temp[sizeof(temp) - 1] = '\0';
    char *token = strtok(temp, ",");
    while (token) {
        while (*token == ' ') token++;
        if (strcasecmp(token, str) == 0) return 1;
        token = strtok(NULL, ",");
    }
    return 0;
}