#include "jwt.h"
#include "user.h"
#include "utils.h"

void get_user(struct mg_connection *c, struct mg_http_message *hm) {
  if (hm->body.len == 0) {
    mg_http_reply(c, 400, "Content-Type: application/json\r\n", "{%m:%m}", MG_ESC("error"),
                  MG_ESC("must have token"));
    return;
  }
  request_with_token *requestdata = check_body(hm);
  if (requestdata->error != NULL) {
    mg_http_reply(c, 403, "Content-Type: application/json\r\n", "{%m:%m}", MG_ESC("error"), MG_ESC(requestdata->error));
    return;
  }
  if (!jwt_verifyJWT(requestdata->token, JWT_DEFAULT_SECRET)) {
    free_request_with_token(requestdata);
    mg_http_reply(c, 403, "Content-Type: application/json\r\n", "{%m:%m}", MG_ESC("error"),
                  MG_ESC("invalid token"));
    return;
  }
  cJSON *payload = jwt_get_payload(requestdata->token);
  char *username =
      strdup(cJSON_GetObjectItem(payload, "username")->valuestring);
  User *user = db_get_user_by_username(username);
  if (!user) {
    free_request_with_token(requestdata);
    cJSON_Delete(payload);
    free(username);
    mg_http_reply(c, 404, "Content-Type: application/json\r\n", "{%m:%m}", MG_ESC("error"),
                  MG_ESC("user not found"));
    return;
  }
  char responsedata[2048] = {0};
  snprintf(responsedata, sizeof(responsedata),
           "{\"id\": %d, \"username\": \"%s\", \"email\": \"%s\", \"group\": "
           "\"%s\", \"is_superuser\": %s}",
           user->id, user->username, user->email, user->group,
           user->is_superuser ? "true" : "false");

  mg_http_reply(c, 200, "Content-Type: application/json\r\n", responsedata);
  free_request_with_token(requestdata);
  free(username);
  free_user(user);
  cJSON_Delete(payload);
}