/*! Copyright 2022 Bogdan Pilyugin
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *  	 \file HTTPPrintCustom.c
 *    \version 1.0
 * 		 \date 2022-08-18
 *     \author Bogdan Pilyugin
 * 	    \brief    
 *    \details 
 *	\copyright Apache License, Version 2.0
 */
#include "webguiapp.h"

//Default string if not found handler
static void HTTPPrint_DEF(char *VarData, void *arg)
{
    snprintf(VarData, MAX_DYNVAR_LENGTH, "#DEF");
}

static void HTTPPrint_status_fail(char *VarData, void *arg)
{
    snprintf(VarData, MAX_DYNVAR_LENGTH, "none");
}

dyn_var_handler_t HANDLERS_ARRAY_CUST[] = {

        /*ERROR report*/
        { "status_fail", sizeof("status_fail") - 1, &HTTPPrint_status_fail },

};


int HTTPPrintCustom(httpd_req_t *req, char *buf, char *var)
{
    char VarData[MAX_DYNVAR_LENGTH];
    bool fnd = false;
    char *p2 = var + strlen(var) - 1; //last var symbol
    int arg = 0;
    //searching for tag in handles array
    for (int i = 0; i < (sizeof(HANDLERS_ARRAY_CUST) / sizeof(HANDLERS_ARRAY_CUST[0])); ++i)
    {
        //Try to extract integer parameter from dynamic variable
        if (*p2 == ')')
        { //found close brace
            char *p1 = p2;
            while ((*p1 != '(') && (p1 > var))
                --p1;
            if (*p1 == '(')
            { //found open brace
                *p1 = 0x00;         //trim variable to name part
                ++p1;               //to begin of argument
                *p2 = 0x00;         //set end of argument
                arg = atoi(p1);
            }
        }

        if (strcmp(var, HANDLERS_ARRAY_CUST[i].tag) == 0
                && HANDLERS_ARRAY_CUST[i].HandlerRoutine != NULL)
        {
            HANDLERS_ARRAY_CUST[i].HandlerRoutine(VarData, (void*) &arg);
            fnd = true;
            break;
        }
    }
    if (!fnd)
    {
            HTTPPrint_DEF(VarData, NULL);
    }
    int dLen = strlen(VarData);
    memcpy(buf, VarData, dLen);
    return dLen;
}