/**
 * weather.c
 * Implementation of weather information fetching and display for Linux
 * Uses wttr.in service to display weather with its rich UI
 */

#include "weather.h"
#include "favorite_cities.h"
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/**
 * Command handler for the "weather" command
 * Executes curl to get weather from wttr.in with full UI
 */
int lsh_weather(char **args) {
  char command[256];
  char location[128] = ""; // Default empty location

  // Check if a location was provided as an argument
  if (args[1]) {
    // Use the provided location
    strncpy(location, args[1], sizeof(location) - 1);
    location[sizeof(location) - 1] = '\0';
  } else {
    // No location provided, use current location (blank parameter to wttr.in)
    location[0] = '\0';
  }
  
  // Properly URL-encode spaces in the location
  char encoded_location[256] = "";
  char *src = location;
  char *dst = encoded_location;
  
  while (*src) {
    if (*src == ' ') {
      *dst++ = '%';
      *dst++ = '2';
      *dst++ = '0';
    } else {
      *dst++ = *src;
    }
    src++;
  }
  *dst = '\0';
  
  // Format command with the location - using default wttr.in display format
  snprintf(command, sizeof(command), "curl -s wttr.in/%s", encoded_location);
  
  // Execute the command and display the full wttr.in UI
  system(command);
  
  return 1;
}