/**
 * Entirely written by Claude AI.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/stat.h>
#include <dirent.h>


// third party
#include <curl/curl.h>
#include "third_party/raylib/include/raylib.h"
#define RAYGUI_IMPLEMENTATION
#include "third_party/raylib/include/raygui.h"

#define SCREEN_WIDTH 1280
#define SCREEN_HEIGHT 780
#define TEXT_SIZE 10
#define LINE_HEIGHT 15
#define GENERIC_PADDING 15

#define SIDEBAR_WIDTH 200
#define SIDEBAR_PADDING_GENERAL 5
#define SIDEBAR_AREA_PADDING_X 10
#define SIDEBAR_AREA_PADDING_Y 10
#define SIDEBAR_REFERSH_BUTTON_WIDTH 90
#define SIDEBAR_REFERSH_BUTTON_HEIGHT 20
#define SIDEBAR_HISTORY_ITEM_HEIGHT 45

#define URL_INPUT_HEIGHT 40

#define TAB_LEN 3
#define METHOD_BUTTON_WIDTH 100
#define METHOD_BUTTON_HEIGHT 40
#define SEND_BUTTON_WIDTH 100
#define SEND_BUTTON_HEIGHT 40

#define JSON_INPUT_BUFFER_LEN 8192
#define HEADER_INPUT_BUFFER_LEN 4096
#define PARAM_INPUT_BUFFER_LEN 4096
#define MAX_HISTORY_ITEMS 100

// Structure to hold response data
typedef struct {
  char *data;
  size_t size;
} ResponseBuffer;

// Structure to hold history item
typedef struct {
  char filename[256];
  char displayName[128];
  char method[16];
  time_t timestamp;
} HistoryItem;

typedef enum {
  ActiveTab_JSON = 0,
  ActiveTab_Headers, 
  ActiveTab_Params,
} ActiveTab;

// Callback function for curl to write response data
static size_t Postdog_Curl_Callback(void *contents, size_t size, size_t nmemb, void *userp)
{
  size_t real_size = size * nmemb;
  ResponseBuffer *buf = (ResponseBuffer *)userp;

  char *ptr = realloc(buf->data, buf->size + real_size + 1);
  if (ptr == NULL)
  {
    printf("Not enough memory for response\n");
    return 0;
  }

  buf->data = ptr;
  memcpy(&(buf->data[buf->size]), contents, real_size);
  buf->size += real_size;
  buf->data[buf->size] = 0;

  return real_size;
}

// Function to make HTTP request using curl
int PostDog_Make_HttpRequest(const char *url, const char *method, const char *headers,
                    const char *body, char *response, size_t responseSize)
{
  CURL *curl;
  CURLcode res;
  ResponseBuffer buffer = { .data = malloc(1), .size = 0 };

  if (buffer.data == NULL)
  {
    snprintf(response, responseSize, "Error: Failed to allocate memory");
    return -1;
  }
  buffer.data[0] = '\0';

  curl_global_init(CURL_GLOBAL_DEFAULT);
  curl = curl_easy_init();

  if (curl)
  {
    struct curl_slist *headerList = NULL;

    // Set URL
    curl_easy_setopt(curl, CURLOPT_URL, url);

    // Set HTTP method
    if (strcmp(method, "POST") == 0)
    {
      curl_easy_setopt(curl, CURLOPT_POST, 1L);
      if (body && strlen(body) > 0) {
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, body);
      }
    } 
    else if (strcmp(method, "PUT") == 0)
    {
      curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
      if (body && strlen(body) > 0) {
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, body);
      }
    }
    else if (strcmp(method, "DELETE") == 0)
    {
      curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
    }
    // Default is GET

    // Parse and add headers
    if (headers && strlen(headers) > 0)
    {
      char *headersCopy = strdup(headers);
      char *line = strtok(headersCopy, "\n");
      while (line != NULL) {
        // Trim whitespace
        while (*line == ' ' || *line == '\t') line++;
        if (strlen(line) > 0) {
          headerList = curl_slist_append(headerList, line);
        }
        line = strtok(NULL, "\n");
      }
      curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerList);
      free(headersCopy);
    }

    // Set write callback
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, Postdog_Curl_Callback);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&buffer);

    // Follow redirects
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);

    // Set timeout
    curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L);

    // Perform request
    res = curl_easy_perform(curl);

    if (res != CURLE_OK) {
      snprintf(response, responseSize, "Error: %s\n", curl_easy_strerror(res));
    } else {
      long response_code;
      curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);

      snprintf(response, responseSize, "HTTP Status: %ld\n\n%s",
               response_code, buffer.data ? buffer.data : "");
    }

    // Cleanup
    if (headerList) curl_slist_free_all(headerList);
    curl_easy_cleanup(curl);
  } else {
    snprintf(response, responseSize, "Error: Failed to initialize curl");
  }

  free(buffer.data);
  curl_global_cleanup();

  return 0;
}

void PostDog_HistoryDirectory_Exists()
{
  struct stat st = {0};
  if (stat("history", &st) == -1)
  {
    mkdir("history", 0700);
  }
}

int PostDog_HistoryDistory_ItemsLoad(HistoryItem *items, int maxItems)
{
  DIR *dir = opendir("history");
  if (!dir) return 0;

  struct dirent *entry;
  int count = 0;

  while ((entry = readdir(dir)) != NULL && count < maxItems)
  {
    if (entry->d_name[0] == '.') continue;
    if (strstr(entry->d_name, ".txt") == NULL) continue;

    // Parse filename: YYYYMMDD_HHMMSS_METHOD.txt
    strncpy(items[count].filename, entry->d_name, sizeof(items[count].filename) - 1);

    // Extract method from filename
    char *methodStart = strrchr(entry->d_name, '_');
    if (methodStart)
    {
      methodStart++; // Skip underscore
      char *dotPos = strchr(methodStart, '.');
      if (dotPos) {
        int len = dotPos - methodStart;
        if (len < 16) {
          strncpy(items[count].method, methodStart, len);
          items[count].method[len] = '\0';
        }
      }
    }

    // Create display name: METHOD - YYYYMMDD HHMMSS
    char dateTime[32] = "";
    if (strlen(entry->d_name) >= 15)
    {
      snprintf(dateTime, sizeof(dateTime), "%.8s %.6s",
               entry->d_name, entry->d_name + 9);
    }
    snprintf(items[count].displayName, sizeof(items[count].displayName),
             "%s - %s", items[count].method, dateTime);
    count++;
  }

  closedir(dir);
  return count;
}

int PostDog_HistoryDirectory_LoadRequest(const char *filename, char *url, char *method, char *headers, char *body)
{
  char filepath[512];
  snprintf(filepath, sizeof(filepath), "history/%s", filename);

  FILE *f = fopen(filepath, "r");
  if (!f) return -1;

  char line[2048];
  int section = 0; // 0=url, 1=method, 2=headers, 3=body

  url[0] = '\0';
  method[0] = '\0';
  headers[0] = '\0';
  body[0] = '\0';

  while (fgets(line, sizeof(line), f))
  {
    // Remove newline
    line[strcspn(line, "\n")] = 0;

    if (section == 0)
    {
      // First line is URL
      strncpy(url, line, 1024 - 1);
      section = 1;
    } 
    else if (strncmp(line, "Method: ", 8) == 0)
    {
      strncpy(method, line + 8, 15);
      section = 2;
    }
    else if (strncmp(line, "Headers:", 8) == 0)
    {
      section = 2;
    }
    else if (strcmp(line, "---") == 0)
    {
      section = 3;
    }
    else if (strncmp(line, "Body:", 5) == 0)
    {
      section = 3;
    }
    else if (section == 2 && strcmp(line, "None") != 0)
    {
      // Add header line
      if (strlen(headers) > 0) strcat(headers, "\n");
      strncat(headers, line, HEADER_INPUT_BUFFER_LEN - strlen(headers) - 1);
    }
    else if (section == 3 && strcmp(line, "None") != 0)
    {
      // Add body line
      if (strlen(body) > 0) strcat(body, "\n");
      strncat(body, line, JSON_INPUT_BUFFER_LEN - strlen(body) - 1);
    }
  }

  fclose(f);
  return 0;
}

void Postdog_UpdateUrlWithParams(char *url, size_t urlSize, const char *baseUrl, const char *params)
{
  // Find if there's already a ? in the URL
  char *questionMark = strchr(baseUrl, '?');

  if (questionMark != NULL) {
    // URL already has params, just copy the base
    strncpy(url, baseUrl, urlSize - 1);
  } else {
    // No params yet, add them
    snprintf(url, urlSize, "%s", baseUrl);
  }

  // Parse and append params
  if (params && strlen(params) > 0) {
    char *paramsCopy = strdup(params);
    char *line = strtok(paramsCopy, "\n");
    bool firstParam = (questionMark == NULL);

    while (line != NULL) {
      // Trim whitespace
      while (*line == ' ' || *line == '\t') line++;

      if (strlen(line) > 0 && strchr(line, '=')) {
        size_t currentLen = strlen(url);
        if (currentLen + 2 < urlSize) {
          strcat(url, firstParam ? "?" : "&");
          firstParam = false;
          strncat(url, line, urlSize - strlen(url) - 1);
        }
      }
      line = strtok(NULL, "\n");
    }
    free(paramsCopy);
  }
}

// Save request to history file
void Postdog_SaveRequestToHistory(const char *url, const char *method, const char *headers, const char *body)
{
  PostDog_HistoryDirectory_Exists();

  // Generate filename with timestamp
  time_t now = time(NULL);
  struct tm *t = localtime(&now);
  char filename[256];
  snprintf(filename, sizeof(filename), "history/%04d%02d%02d_%02d%02d%02d_%s.txt",
           t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
           t->tm_hour, t->tm_min, t->tm_sec, method);

  FILE *f = fopen(filename, "w");
  if (f == NULL) {
    printf("Failed to create history file\n");
    return;
  }

  // Write URL
  fprintf(f, "%s\n", url);

  // Write method
  fprintf(f, "Method: %s\n", method);

  // Write headers
  fprintf(f, "Headers:\n");
  if (headers && strlen(headers) > 0)
  {
    fprintf(f, "%s\n", headers);
  }
  else
  {
    fprintf(f, "None\n");
  }

  fprintf(f, "---\n");

  // Write body
  fprintf(f, "Body:\n");
  if (body && strlen(body) > 0)
  {
    fprintf(f, "%s\n", body);
  }
  else
  {
    fprintf(f, "None\n");
  }

  fclose(f);
  printf("Request saved to %s\n", filename);
}

void PostDog_Render_TextWithScroll(Rectangle textArea, Vector2 scroll, char *input)
{
  BeginScissorMode(textArea.x, textArea.y, textArea.width, textArea.height);
  
  int yPos = textArea.y + 5 - (int)scroll.y;
  int charactersPerLine = (int)(textArea.width / (TEXT_SIZE/1.5)); // Account for padding
  int totalPos = 0;
  int inputLen = strlen(input);
  
  while (totalPos < inputLen)
  {
    int lineEnd = totalPos;
    int lineLength = 0;
    
    while (lineEnd < inputLen && lineLength < charactersPerLine && input[lineEnd] != '\n')
    {
      lineEnd++;
      lineLength++;
    }
    
    if (yPos + LINE_HEIGHT > textArea.y && yPos < textArea.y + textArea.height)
    {
      char savedChar = input[lineEnd];
      input[lineEnd] = '\0';
      DrawText(&input[totalPos], textArea.x + 5, yPos, TEXT_SIZE, DARKGRAY);
      input[lineEnd] = savedChar;
    }
    
    yPos += LINE_HEIGHT;
    
    totalPos = lineEnd;
    if (totalPos < inputLen && input[totalPos] == '\n')
    {
      totalPos++;
    }
  }
  
  EndScissorMode();
}

int main()
{
  InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "PostDog - HTTP Client");
  SetWindowState(FLAG_WINDOW_RESIZABLE);
  SetTargetFPS(60);

  PostDog_HistoryDirectory_Exists();

  // UI State
  char urlInput[1024] = "https://httpbin.org/get";
  bool urlEditMode = false;

  char jsonInput[JSON_INPUT_BUFFER_LEN] = "{\"key\":\"value\"}";
  bool jsonEditMode = false;

  char headersInput[HEADER_INPUT_BUFFER_LEN] = "Content-Type: application/json";
  bool headersEditMode = false;

  char responseText[16384] = "Response will appear here...\n\nTry the default URL or enter your own!";

  char paramsInput[PARAM_INPUT_BUFFER_LEN] = "key1=value1\nkey2=value2";
  bool paramsEditMode = false;

  ActiveTab activeTab = ActiveTab_JSON; // 0 = JSON, 1 = Headers, 2 = Params

  // HTTP method selection
  int methodActive = 0;
  bool methodDropdown = false;
  const char *methods[] = { "GET", "POST", "PUT", "DELETE" };

  // Scroll support
  Vector2 jsonScroll = { 0, 0 };
  Vector2 headersScroll = { 0, 0 };
  Vector2 paramsScroll = { 0, 0 };
  Vector2 responseScroll = { 0, 0 };
  Vector2 historyScroll = { 0, 0 };

  // History
  HistoryItem historyItems[MAX_HISTORY_ITEMS];
  int historyCount = 0;
  int selectedHistoryIndex = -1;

  // Load initial history
  historyCount = PostDog_HistoryDistory_ItemsLoad(historyItems, MAX_HISTORY_ITEMS);

  while (!WindowShouldClose())
  {
    // Get current window dimensions for responsive layout
    int screenWidth = GetScreenWidth();
    int screenHeight = GetScreenHeight();

    // Layout calculations
    Rectangle sidebar = { 0, 10, SIDEBAR_WIDTH, screenHeight };

    float mainX = SIDEBAR_WIDTH + GENERIC_PADDING;
    float mainWidth = screenWidth - SIDEBAR_WIDTH - GENERIC_PADDING * 2;

    // URL input box - leave space for SEND button on the right
    Rectangle urlBox = {
      mainX,
      GENERIC_PADDING,
      mainWidth - SEND_BUTTON_WIDTH - GENERIC_PADDING,
      URL_INPUT_HEIGHT
    };

    // SEND button positioned beside URL input
    Rectangle sendButton = {
      urlBox.x + urlBox.width + GENERIC_PADDING,
      GENERIC_PADDING,
      SEND_BUTTON_WIDTH,
      SEND_BUTTON_HEIGHT
    };

    // Method dropdown below URL
    Rectangle methodButton = {
      mainX,
      urlBox.y + urlBox.height + GENERIC_PADDING,
      METHOD_BUTTON_WIDTH,
      METHOD_BUTTON_HEIGHT
    };

    float tabHeight = 30;
    float contentY = methodButton.y + methodButton.height + GENERIC_PADDING + tabHeight;
    float contentHeight = screenHeight - contentY - GENERIC_PADDING;

    float panelWidth = (mainWidth - GENERIC_PADDING) / 2;

    Rectangle tabBar = {
      mainX,
      methodButton.y + methodButton.height + GENERIC_PADDING,
      panelWidth,
      tabHeight
    };

    Rectangle requestPanel = {
      mainX,
      contentY,
      panelWidth,
      contentHeight
    };

    Rectangle responsePanel = {
      mainX + panelWidth + GENERIC_PADDING,
      contentY,
      panelWidth,
      contentHeight
    };

    BeginDrawing();
      ClearBackground(GetColor(GuiGetStyle(DEFAULT, BACKGROUND_COLOR)));

      // --- Sidebar Component---
      DrawRectangleRec(sidebar, Fade(GRAY, 0.1f));
      GuiGroupBox(sidebar, "HISTORY");

      Rectangle refreshBtn = { 
        sidebar.x + SIDEBAR_PADDING_GENERAL, 
        sidebar.y + SIDEBAR_PADDING_GENERAL,
        SIDEBAR_REFERSH_BUTTON_WIDTH,
        SIDEBAR_REFERSH_BUTTON_HEIGHT
      };
      if (GuiButton(refreshBtn, "Refresh"))
      {
        historyCount = PostDog_HistoryDistory_ItemsLoad(historyItems, MAX_HISTORY_ITEMS);
      }

      Rectangle historyArea = { 
        sidebar.x + SIDEBAR_PADDING_GENERAL,
        sidebar.y + SIDEBAR_AREA_PADDING_Y, 
        sidebar.width - SIDEBAR_AREA_PADDING_X, 
        sidebar.height - SIDEBAR_AREA_PADDING_Y
      };
      if (CheckCollisionPointRec(GetMousePosition(), historyArea))
      {
        float wheel = GetMouseWheelMove();
        historyScroll.y += wheel * 20;
        if (historyScroll.y < 0) historyScroll.y = 0;
      }

      BeginScissorMode(historyArea.x, historyArea.y, historyArea.width, historyArea.height);

      if (historyCount == 0)
      {
        DrawText("No requests yet", historyArea.x + 5, historyArea.y + 25, 10, DARKGRAY);
      } 
      else
      {
        int item_y_position = historyArea.y + SIDEBAR_AREA_PADDING_Y + 5 - (int)historyScroll.y;
        for (
            int current_history_item_number = 0;
            current_history_item_number < historyCount;
            current_history_item_number++
        )
        {
          if (item_y_position > historyArea.y - SIDEBAR_HISTORY_ITEM_HEIGHT && item_y_position < historyArea.y + historyArea.height)
          {
            Rectangle itemRect = { historyArea.x, item_y_position, historyArea.width, SIDEBAR_HISTORY_ITEM_HEIGHT - 2 };

            // Draw button for history item
            Color bgColor = (selectedHistoryIndex == current_history_item_number) ? Fade(BLUE, 0.3f) : Fade(LIGHTGRAY, 0.5f);
            if (CheckCollisionPointRec(GetMousePosition(), itemRect) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
            {
              // TODO: This is cringe as fuck probably should just have a strucut that we assign and then zero out lol
              char tempUrl[1024], tempMethod[16], tempHeaders[HEADER_INPUT_BUFFER_LEN], tempBody[JSON_INPUT_BUFFER_LEN];

              if (PostDog_HistoryDirectory_LoadRequest(
                    historyItems[current_history_item_number].filename, tempUrl, tempMethod, tempHeaders, tempBody) == 0)
              {
                strncpy(urlInput, tempUrl, sizeof(urlInput) - 1);
                strncpy(headersInput, tempHeaders, sizeof(headersInput) - 1);
                strncpy(jsonInput, tempBody, sizeof(jsonInput) - 1);

                // Set method
                for (int m = 0; m < 4; m++)
                {
                  if (strcmp(methods[m], tempMethod) == 0)
                  {
                    methodActive = m;
                    break;
                  }
                }

                selectedHistoryIndex = current_history_item_number;
                strcpy(responseText, "Request loaded from history. Click SEND to execute.");
              }
            }

            DrawRectangleRec(itemRect, bgColor);
            DrawRectangleLinesEx(itemRect, 1, GRAY);

            // Draw method badge
            DrawText(historyItems[current_history_item_number].method, itemRect.x + 5, item_y_position + 5, 10, BLACK);

            // Draw timestamp (date only)
            char dateStr[16] = "";
            if (strlen(historyItems[current_history_item_number].filename) >= 8)
            {
              snprintf(dateStr, sizeof(dateStr), "%.4s-%.2s-%.2s",
                       historyItems[current_history_item_number].filename, historyItems[current_history_item_number].filename + 4, historyItems[current_history_item_number].filename + 6);
            }
            DrawText(dateStr, itemRect.x + 5, item_y_position + 18, 8, DARKGRAY);

            // Draw time
            char timeStr[16] = "";
            if (strlen(historyItems[current_history_item_number].filename) >= 15) {
              snprintf(timeStr, sizeof(timeStr), "%.2s:%.2s:%.2s",
                       historyItems[current_history_item_number].filename + 9, historyItems[current_history_item_number].filename + 11, historyItems[current_history_item_number].filename + 13);
            }
            DrawText(timeStr, itemRect.x + 5, item_y_position + 28, 8, DARKGRAY);
          }

          item_y_position += SIDEBAR_HISTORY_ITEM_HEIGHT;
        }
      }

      EndScissorMode();

      // --- URL Input Component ---
      GuiLabel((Rectangle){ mainX, GENERIC_PADDING - 15, 100, 20 }, "URL:");
      if (GuiTextBox(urlBox, urlInput, 1024, urlEditMode))
      {
        urlEditMode = !urlEditMode;
      }
      if (urlEditMode && (IsKeyDown(KEY_LEFT_SUPER) || IsKeyDown(KEY_LEFT_CONTROL)) && IsKeyPressed(KEY_C))
      {
        SetClipboardText(urlInput);
      }

      // Send button (beside URL)
      if (GuiButton(sendButton, "SEND") || (urlEditMode && IsKeyDown(KEY_ENTER)))
      {
        strcpy(responseText, "Sending request...\n");

        // Make the actual HTTP request
        char tempResponse[16384];
        const char *selectedMethod = methods[methodActive];

        // Use JSON body for POST/PUT, otherwise use empty body
        const char *requestBody = (methodActive == 1 || methodActive == 2) ? jsonInput : NULL;
        const char *requestHeaders = headersInput;

        // Save request to history
        Postdog_SaveRequestToHistory(urlInput, selectedMethod, requestHeaders, requestBody);

        // Reload history to show the new request
        historyCount = PostDog_HistoryDistory_ItemsLoad(historyItems, MAX_HISTORY_ITEMS);

        // Making the requests.
        PostDog_Make_HttpRequest(urlInput, selectedMethod, requestHeaders,
                       requestBody, tempResponse, sizeof(tempResponse));
        strncpy(responseText, tempResponse, sizeof(responseText) - 1);
        responseText[sizeof(responseText) - 1] = '\0';
      }

      // Tab toggle (3 tabs now)
      float tabWidth = tabBar.width / 3;
      Rectangle jsonTab = { tabBar.x, tabBar.y - 10, tabWidth, tabBar.height };
      Rectangle headersTab = { tabBar.x + tabWidth, tabBar.y - 10, tabWidth, tabBar.height };
      Rectangle paramsTab = { tabBar.x + tabWidth * 2, tabBar.y - 10, tabWidth, tabBar.height };

      if (GuiButton(jsonTab, activeTab ==  ActiveTab_JSON ? "#191#Body" : "Body"))
      {
        activeTab = ActiveTab_JSON;
      }

      if (GuiButton(headersTab, activeTab == ActiveTab_Headers ? "#191#Headers" : "Headers"))
      {
        activeTab = ActiveTab_Headers;
      }

      if (GuiButton(paramsTab, activeTab == ActiveTab_Params ? "#191#Params" : "Params"))
      {
        activeTab = ActiveTab_Params;
      }

      const char *panelTitle;
      switch(activeTab) {
        case  ActiveTab_JSON:
        {
          panelTitle = "Request Body (JSON)";
          break;
        }
        case  ActiveTab_Headers:
        {
          panelTitle = "Request Headers";
          break;
        } 
        case  ActiveTab_Params:
        {
          panelTitle = "Query Parameters";
          break;
        }
      }

      // Panel title
      GuiGroupBox(requestPanel, panelTitle);
      Rectangle textArea = {
        requestPanel.x + 10,
        requestPanel.y + 30,
        requestPanel.width - 20,
        requestPanel.height - 40
      };

      // Handle click outside to disable edit mode
      if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
      {
        if (!CheckCollisionPointRec(GetMousePosition(), textArea))
        {
          jsonEditMode = false;
          headersEditMode = false;
          paramsEditMode = false;
        }
      }

      // Draw border for text area
      DrawRectangleLinesEx(textArea, 1, GRAY);

      // Manual scroll handling with mouse wheel
      if (CheckCollisionPointRec(GetMousePosition(), textArea))
      {
        float wheel = GetMouseWheelMove();
        switch(activeTab)
        {
          case  ActiveTab_JSON:
          {
            jsonScroll.y += wheel * 20;
            if (jsonScroll.y < 0) jsonScroll.y = 0;
          }
          case  ActiveTab_Headers:
          {
            headersScroll.y += wheel * 20;
            if (headersScroll.y < 0) headersScroll.y = 0;
          } 
          case  ActiveTab_Params:
          {
            paramsScroll.y += wheel * 20;
            if (paramsScroll.y < 0) paramsScroll.y = 0;
          }
        }
      }

      char *copyFromInput;
      bool *currentMode; 
      switch(activeTab)
      {
        case  ActiveTab_JSON:
        {
          PostDog_Render_TextWithScroll(textArea, jsonScroll, jsonInput);
          copyFromInput = jsonInput;
          currentMode = &jsonEditMode;
          break;
        }
        case  ActiveTab_Headers:
        {
          PostDog_Render_TextWithScroll(textArea, headersScroll, headersInput);
          copyFromInput = headersInput;
          currentMode = &headersEditMode;
          break;
        } 
        case  ActiveTab_Params:
        {
          PostDog_Render_TextWithScroll(textArea, paramsScroll, paramsInput);
          copyFromInput = paramsInput;
          currentMode = &paramsEditMode;

          Rectangle updateUrlBtn = { textArea.x + 30, textArea.y + textArea.height - 10, 120, 20 };
          // TODO: Automatic update
          if (GuiButton(updateUrlBtn, "Update URL"))
          {
            char tempUrl[1024];
            strncpy(tempUrl, urlInput, sizeof(tempUrl) - 1);

            // Remove existing params if any
            char *questionMark = strchr(tempUrl, '?');
            if (questionMark) *questionMark = '\0';

            Postdog_UpdateUrlWithParams(urlInput, sizeof(urlInput), tempUrl, paramsInput);
          }
          break;
        }
      }

      if ((IsKeyDown(KEY_LEFT_SUPER) || IsKeyDown(KEY_LEFT_CONTROL)) && IsKeyPressed(KEY_C))
      {
        SetClipboardText(copyFromInput);
      }

      Rectangle editBtn = { textArea.x + textArea.width - 60, textArea.y + textArea.height - 10, 50, 20 };
      if (GuiButton(editBtn, "Edit"))
      {
        *currentMode = !(*currentMode);
      }

      // Response Panel with scroll
      GuiGroupBox(responsePanel, "Response");

      Rectangle responseArea = {
        responsePanel.x + 10,
        responsePanel.y + 30,
        responsePanel.width - 20,
        responsePanel.height - 40
      };

      // Manual scroll for response
      if (CheckCollisionPointRec(GetMousePosition(), responseArea))
      {
        float wheel = GetMouseWheelMove();
        responseScroll.y += wheel * 20;
        if (responseScroll.y < 0) responseScroll.y = 0;
      }

      // Draw border
      DrawRectangleLinesEx(responseArea, 1, GRAY);

      // Draw response text with scroll
      PostDog_Render_TextWithScroll(responseArea, responseScroll, responseText);

      if ((IsKeyDown(KEY_LEFT_SUPER) || IsKeyDown(KEY_LEFT_CONTROL)) && IsKeyPressed(KEY_C))
      {
        if (CheckCollisionPointRec(GetMousePosition(), responseArea)) {
          SetClipboardText(responseText);
        }
      }

      // ---  Edit modal  ----
      if (jsonEditMode)
      {
        GuiTextBox(
            (Rectangle){ screenWidth/2 - 300, screenHeight/2 - 200, 600, 400 },
            jsonInput, JSON_INPUT_BUFFER_LEN, true);
      }

      if (headersEditMode)
      {
        GuiTextBox(
            (Rectangle){ screenWidth/2 - 300, screenHeight/2 - 200, 600, 400 },
            headersInput, HEADER_INPUT_BUFFER_LEN, true);
      }

      if (paramsEditMode)
      {
        GuiTextBox(
            (Rectangle){ screenWidth/2 - 300, screenHeight/2 - 200, 600, 400 },
            paramsInput, PARAM_INPUT_BUFFER_LEN, true);
      }

      if (GuiDropdownBox(methodButton, "GET;POST;PUT;DELETE", &methodActive, methodDropdown))
      {
        methodDropdown = !methodDropdown;
      }


    EndDrawing();
  }

  CloseWindow();
  return 0;
}