#include "ConfigManager.h"
#include <cJSON.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "file.h"

typedef struct ConfigManager {
  cJSON *config;
  pthread_mutex_t config_file_mutex;
  char *config_file_name;
} ConfigManager;

ConfigManager *cm_new_config() {
  ConfigManager *newcm = malloc(sizeof(ConfigManager));
  newcm->config_file_name = nullptr;
  newcm->config = nullptr;
  return newcm;
}

ConfigManager *cm_new_config_from_file(const char *filename) {
  ConfigManager *newcm = malloc(sizeof(ConfigManager));
  newcm->config_file_name = strdup(filename);
  pthread_mutex_lock(&(newcm->config_file_mutex));
  char *config_file_content = read_file(newcm->config_file_name);
  newcm->config = cJSON_Parse(config_file_content);
  pthread_mutex_unlock(&(newcm->config_file_mutex));
  return newcm;
}

ConfigManager *cm_new_config_from_object(cJSON *config) {
  ConfigManager *newcm = malloc(sizeof(ConfigManager));
  newcm->config = config;
  newcm->config_file_name = nullptr;
  return newcm;
}

void cm_set_config_from_file(ConfigManager *cm, const char *filename) {
  cm->config_file_name = strdup(filename);
  pthread_mutex_lock(&(cm->config_file_mutex));
  char *config_file_content = read_file(cm->config_file_name);
  cm->config = cJSON_Parse(config_file_content);
  pthread_mutex_unlock(&(cm->config_file_mutex));
}

void cm_set_config_from_object(ConfigManager *cm, cJSON *config) {
  cm->config = config;
}

void cm_delete_config(ConfigManager *cm) {
  if (!cm) {
    return;
  }
  if (cm->config) {
    cJSON_Delete(cm->config);
  }
  if (cm->config_file_name) {
    free(cm->config_file_name);
  }
  free(cm);
}

void cm_print_config(const ConfigManager *cm) {
  printf("Config: %s\n", cJSON_Print(cm->config));
}

char *cm_get_config_filename(ConfigManager *cm) {
  return strdup(cm->config_file_name);
}

cJSON *cm_get_config(ConfigManager *cm) {
  return cJSON_Duplicate(cm->config, (cJSON_bool) true);
}

char *cm_get_parameter_as_string(ConfigManager *cm, const char *param_name) {
  cJSON *param = cJSON_GetObjectItem(cm->config, param_name);
  if (!param) return nullptr;
  char *param_value = strdup(param->valuestring);
  return param_value;
}

int cm_get_parameter_as_int(ConfigManager *cm, const char *param_name) {
  cJSON *param = cJSON_GetObjectItem(cm->config, param_name);
  return param->valueint;
}
double cm_get_parameter_as_double(ConfigManager *cm, const char *param_name) {
  cJSON *param = cJSON_GetObjectItem(cm->config, param_name);
  return param->valuedouble;
}
float cm_get_parameter_as_float(ConfigManager *cm, const char *param_name) {
  cJSON *param = cJSON_GetObjectItem(cm->config, param_name);
  return param->valuedouble;
}
bool cm_get_parameter_as_bool(ConfigManager *cm, const char *param_name) {
  cJSON *param = cJSON_GetObjectItem(cm->config, param_name);
  if (!param) return false;
  return param->valueint;
}

void cm_set_string_parameter(ConfigManager *cm, const char *name,
                             const char *value) {
  cJSON *param = cJSON_GetObjectItem(cm->config, name);
  if (!param) {
    cJSON_AddStringToObject(cm->config, name, value);
    return;
  }
  cJSON_SetValuestring(param, value);
}
void cm_set_int_parameter(ConfigManager *cm, const char *name,
                          const int value) {
  cJSON *param = cJSON_GetObjectItem(cm->config, name);
  if (!param) {
    cJSON_AddNumberToObject(cm->config, name, value);
    return;
  }
  cJSON_SetIntValue(param, value);
}
void cm_set_double_parameter(ConfigManager *cm, const char *name,
                             const double value) {
  cJSON *param = cJSON_GetObjectItem(cm->config, name);
  if (!param) {
    cJSON_AddNumberToObject(cm->config, name, value);
    return;
  }
  cJSON_SetNumberValue(param, value);
}
void cm_set_float_parameter(ConfigManager *cm, const char *name,
                            const float value) {
  cJSON *param = cJSON_GetObjectItem(cm->config, name);
  if (!param) {
    cJSON_AddNumberToObject(cm->config, name, value);
    return;
  }
  cJSON_SetNumberValue(param, value);
}
void cm_set_bool_parameter(ConfigManager *cm, const char *name,
                           const bool value) {
  cJSON *param = cJSON_GetObjectItem(cm->config, name);
  if (!param) {
    cJSON_AddBoolToObject(cm->config, name, value);
    return;
  }
  cJSON_SetBoolValue(param, value);
}
void cm_set_null_parameter(ConfigManager *cm, const char *name) {
  cJSON *param = cJSON_GetObjectItem(cm->config, name);
  if (!param) {
    cJSON_AddNullToObject(cm->config, name);
    return;
  }
  cJSON_ReplaceItemInObject(cm->config, name, cJSON_CreateNull());
}

void cm_save_config(ConfigManager *cm) {
  pthread_mutex_lock(&(cm->config_file_mutex));
  FILE *configfile = fopen(cm->config_file_name, "w+");
  char *configvalue = cJSON_Print(cm->config);
  fprintf(configfile, "%s", configvalue);
  fclose(configfile);
  free(configvalue);
  pthread_mutex_unlock(&(cm->config_file_mutex));
}
void cm_save_config_to_file(ConfigManager *cm, const char *filename) {
  pthread_mutex_lock(&(cm->config_file_mutex));
  FILE *configfile = fopen(filename, "w+");
  char *configvalue = cJSON_Print(cm->config);
  fprintf(configfile, "%s", configvalue);
  fclose(configfile);
  free(configvalue);
  pthread_mutex_unlock(&(cm->config_file_mutex));
}