/*----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2020. All rights reserved.
 * Description: Sim900a At Device
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --------------------------------------------------------------------------- */

#include "sim900a.h"

at_adaptor_api sim900a_interface;
char prefix_name[15];

int32_t sim900a_echo_off(void)
{
    return at.cmd((int8_t *)AT_CMD_ECHO_OFF, strlen(AT_CMD_ECHO_OFF), "OK\r\n", NULL, NULL);
}

int32_t sim900a_echo_on(void)
{
    return at.cmd((int8_t *)AT_CMD_ECHO_ON, strlen(AT_CMD_ECHO_OFF), "OK\r\n", NULL, NULL);
}

int32_t sim900a_reset(void)
{
    int32_t ret = 0;
    ret = at.cmd((int8_t *)AT_CMD_SHUT, strlen(AT_CMD_SHUT), "SHUT OK", NULL, NULL);
    return ret;
}

int32_t sim900a_set_mux_mode(int32_t m)
{
    char cmd[64] = {0};
    snprintf(cmd, 64, "%s=%d", AT_CMD_MUX, (int)m);
    return at.cmd((int8_t *)cmd, strlen(cmd), "OK", NULL, NULL);
}

int32_t sim900a_connect(const int8_t *host, const int8_t *port, int32_t proto)
{
    int32_t ret = AT_FAILED;
    int32_t id = at.get_id();
    sim900a_reset();
    char cmd1[64] = {0};
    snprintf(cmd1, 64, "%s=\"B\"", AT_CMD_CLASS);
    at.cmd((int8_t *)cmd1, strlen(cmd1), "OK", NULL, NULL);
    char cmd2[64] = {0};
    snprintf(cmd2, 64, "%s=1,\"IP\",\"CMNET\"", AT_CMD_PDP_CONT);
    at.cmd((int8_t *)cmd2, strlen(cmd2), "OK", NULL, NULL);
    char cmd3[64] = {0};
    snprintf(cmd3, 64, "%s=1", AT_CMD_PDP_ATT);
    at.cmd((int8_t *)cmd3, strlen(cmd3), "OK", NULL, NULL);
    char cmd4[64] = {0};
    snprintf(cmd4, 64, "%s=1", AT_CMD_CIPHEAD);
    at.cmd((int8_t *)cmd4, strlen(cmd4), "OK", NULL, NULL);
    char cmd5[64] = {0};

    AT_LOG_DEBUG("host:%s, port:%s", host, port);

    if (at.mux_mode == AT_MUXMODE_SINGLE) {
        snprintf(cmd5, 64, "%s=\"%s\",\"%s\",\"%s\"", AT_CMD_CONN, proto == ATINY_PROTO_UDP ? "UDP" : "TCP", host,
            port);
    } else {
        at.cmd((int8_t *)(AT_CMD_PDP_ACT "=1,1"), strlen(AT_CMD_PDP_ACT "=1,1"), "OK", NULL, NULL);
        at.cmd((int8_t *)AT_CMD_CSTT, strlen(AT_CMD_CSTT), "OK", NULL, NULL);
        at.cmd((int8_t *)AT_CMD_CIICR, strlen(AT_CMD_CIICR), "OK", NULL, NULL);
        at.cmd((int8_t *)AT_CMD_CIFSR, strlen(AT_CMD_CIFSR), "", NULL, NULL);
        snprintf(cmd5, 64, "%s=%ld,\"%s\",\"%s\",\"%s\"", AT_CMD_CONN, id, proto == ATINY_PROTO_UDP ? "UDP" : "TCP",
            host, port);
    }
    if ((id < 0) || (id >= AT_MAX_LINK_NUM)) {
        AT_LOG("no vailed linkid for use(id = %ld)", id);
        return -1;
    }
    ret = LOS_QueueCreate("dataQueue", 16, &at.linkid[id].qid, 0, sizeof(QUEUE_BUFF));
    if (ret != LOS_OK) {
        AT_LOG("init dataQueue failed!");
        at.linkid[id].usable = AT_LINK_UNUSE;
        return -1;
    }
    at.cmd((int8_t *)cmd5, strlen(cmd5), "CONNECT OK", NULL, NULL);
    return id;
}

int32_t sim900a_recv_timeout(int32_t id, uint8_t *buf, uint32_t len, char *ipaddr, int *port, int32_t timeout)
{
    uint32_t qlen = sizeof(QUEUE_BUFF);
    uint32_t rxlen = 0;

    (void)ipaddr; // gprs not need remote ip
    (void)port;   // gprs not need remote port

    QUEUE_BUFF qbuf = {0, NULL};
    AT_LOG("****at.linkid[id].qid=%d***\n", at.linkid[id].qid);
    int ret = LOS_QueueReadCopy(at.linkid[id].qid, (void *)&qbuf, (UINT32 *)&qlen, timeout);
    AT_LOG("ret = %x, len = %ld, id = %ld", ret, qbuf.len, id);
    if (ret != LOS_OK) {
        return AT_FAILED;
    }

    if (qbuf.len) {
        rxlen = (len < qbuf.len) ? len : qbuf.len;
        memcpy(buf, qbuf.addr, rxlen);
        at_free(qbuf.addr);
    }
    return rxlen;
}

int32_t sim900a_recv(int32_t id, uint8_t *buf, uint32_t len)
{
    return sim900a_recv_timeout(id, buf, len, NULL, NULL, LOS_WAIT_FOREVER);
}

int32_t sim900a_send(int32_t id, const uint8_t *buf, uint32_t len)
{
    int32_t ret = -1;
    char cmd[64] = {0};
    if (at.mux_mode == AT_MUXMODE_SINGLE) {
        snprintf(cmd, 64, "%s=%ld", AT_CMD_SEND, len);
    } else {
        snprintf(cmd, 64, "%s=%ld,%ld", AT_CMD_SEND, id, len);
    }

    ret = at.write((int8_t *)cmd, (int8_t *)"SEND OK", (int8_t *)buf, len);

    return ret;
}

void sim900a_check(void)
{
    while (at.cmd((int8_t *)AT_CMD_AT, strlen(AT_CMD_AT), "OK", NULL, NULL) == AT_FAILED) {
        printf("\r\ncheck module response unnormal\r\n");
        printf("\r\nplease check the module pin connection and the power switch\r\n");
        SIM900A_DELAY(500);
    }
    if (at.cmd((int8_t *)AT_CMD_CPIN, strlen(AT_CMD_CPIN), "OK", NULL, NULL) != AT_FAILED) {
        printf("detected sim card\n");
    }
    if (at.cmd((int8_t *)AT_CMD_COPS, strlen(AT_CMD_COPS), "CHINA MOBILE", NULL, NULL) != AT_FAILED) {
        printf("registerd to the network\n");
    }
}

int32_t sim900a_recv_cb(int32_t id)
{
    return AT_FAILED;
}

int32_t sim900a_close(int32_t id)
{
    char cmd[64] = {0};
    if (at.mux_mode == AT_MUXMODE_SINGLE) {
        snprintf(cmd, 64, "%s", AT_CMD_CLOSE);
    } else {
        uint32_t qlen = sizeof(QUEUE_BUFF);
        QUEUE_BUFF qbuf = {0, NULL};
        while (LOS_QueueReadCopy(at.linkid[id].qid, (void *)&qbuf, (UINT32 *)&qlen, 10) == LOS_OK) {
            if (qbuf.len) {
                at_free(qbuf.addr);
                memset(&qbuf, 0, sizeof(QUEUE_BUFF)); // don't use qlen
            }
        }
        (void)LOS_QueueDelete(at.linkid[id].qid);
        at.linkid[id].usable = 0;
        snprintf(cmd, 64, "%s=%ld", AT_CMD_CLOSE, id);
    }
    return at.cmd((int8_t *)cmd, strlen(cmd), "OK", NULL, NULL);
}

int32_t sim900a_data_handler(void *arg, int8_t *buf, int32_t len)
{
    if (buf == NULL || len <= 0) {
        AT_LOG("param invailed!");
        return -1;
    }
    AT_LOG("entry!");

    // process data frame ,like +IPD,linkid,len:data
    int32_t ret = 0;
    int32_t linkid = 0, data_len = 0;
    char *p1, *p2;
    QUEUE_BUFF qbuf;
    p1 = (char *)buf;

    if (memcmp(p1, prefix_name, strlen(prefix_name)) == 0) {
        p2 = strstr(p1, ",");
        if (p2 == NULL) {
            AT_LOG("got data prefix invailed!");
            goto END;
        }

        if (at.mux_mode == AT_MUXMODE_MULTI) {
            linkid = 0;
            for (p2++; *p2 <= '9' && *p2 >= '0'; p2++) {
                linkid = linkid * 10 + (*p2 - '0');
            }
        }

        for (p2++; *p2 <= '9' && *p2 >= '0'; p2++) {
            data_len = (data_len * 10 + (*p2 - '0'));
        }
        p2++; // over ':'

        if (data_len > len) {
            AT_LOG("error !! receive data not complete data_len:%ld len:%ld", data_len, len);
            goto END;
        }

        qbuf.addr = at_malloc(data_len);
        if (qbuf.addr == NULL) {
            AT_LOG("malloc for qbuf failed!");
            goto END;
        }

        qbuf.len = data_len;
        if (at.mux_mode == AT_MUXMODE_MULTI) {
            p2++;
            p2++; // multi-connect prefix is +RECEIVE,0,13:\r\n+packet content
        }
        memcpy(qbuf.addr, p2, data_len);

        if ((ret = LOS_QueueWriteCopy(at.linkid[linkid].qid, &qbuf, sizeof(QUEUE_BUFF), 0)) != LOS_OK) {
            AT_LOG("LOS_QueueWriteCopy  failed! ret = %lx", ret);
            at_free(qbuf.addr);
            goto END;
        }
        ret = (p2 + data_len - (char *)buf);
    }
END:
    return ret;
}

int32_t sim900a_cmd_match(const char *buf, char *featurestr, int len)
{
    return memcmp(buf, featurestr, len);
}

int32_t sim900a_ini(void)
{
    at_config at_user_conf = {
        .name = AT_MODU_NAME,
        .usart_port = AT_USART_PORT,
        .buardrate = AT_BUARDRATE,
        .linkid_num = AT_MAX_LINK_NUM,
        .user_buf_len = MAX_AT_USERDATA_LEN,
        .cmd_begin = AT_CMD_BEGIN,
        .line_end = AT_LINE_END,
        .mux_mode = 1,             // support multi connection mode
        .timeout = AT_CMD_TIMEOUT, //  ms
    };

    at.init(&at_user_conf);
    // single and multi connect prefix is different
    if (at.mux_mode == AT_MUXMODE_MULTI) {
        memcpy(prefix_name, AT_DATAF_PREFIX_MULTI, sizeof(AT_DATAF_PREFIX_MULTI));
    } else {
        memcpy(prefix_name, AT_DATAF_PREFIX, sizeof(AT_DATAF_PREFIX));
    }
    at.oob_register((char *)prefix_name, strlen((char *)prefix_name), sim900a_data_handler, sim900a_cmd_match);
    sim900a_echo_off();
    sim900a_check();
    sim900a_reset();
    sim900a_set_mux_mode(at.mux_mode);
    at.cmd((int8_t *)("AT+CIPMUX?"), strlen("AT+CIPMUX?"), "OK", NULL, NULL);
    return AT_OK;
}

int32_t sim900a_deinit(void)
{
    int id = 0;

    if (at.linkid != NULL) {
        for (id = 0; id < AT_MAX_LINK_NUM; id++) {
            if (at.linkid[id].usable == AT_LINK_INUSE) {
                if (sim900a_close(id) != AT_OK) {
                    AT_LOG("sim900a_close(%d) failed", id);
                }
            }
        }
    }

    at.deinit();
    return AT_OK;
}

at_adaptor_api sim900a_interface = {
    .init = sim900a_ini,
    .connect = sim900a_connect, /* TCP or UDP connect */
    .send = sim900a_send,       /* send data, if no response, retrun error */
    .recv_timeout = sim900a_recv_timeout,
    .recv = sim900a_recv,
    .close = sim900a_close,     /* close connect */
    .recv_cb = sim900a_recv_cb, /* receive event handle, no available by now */
    .deinit = sim900a_deinit,
};
