#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "ql_api_osi.h"

#include "ql_log.h"
#include "ql_api_datacall.h"
#include "ql_http_client.h"
#include "ql_fs.h"

typedef enum
{
    QHTTPC_EVENT_RESPONSE = 1001,
    QHTTPC_EVENT_END,
} qhttpc_event_code_e;

typedef struct
{
    http_client_t http_client;
    ql_queue_t queue;

    ql_mutex_t simple_lock;
    bool dl_block;
    int dl_high_line;
    int dl_total_len;

    QFILE upload_fd;
    QFILE dload_fd;
} qhttpc_ctx_t;
qhttpc_ctx_t EC600U_test_http_demo_client = {0}; // http通信结构体
#define HTTP_DLOAD_HIGH_LINE 40960
#define EC600U_HTTP_LOG(msg, ...) QL_LOG(QL_LOG_LEVEL_INFO, "EC600U_HTTP_DLOAD", msg, ##__VA_ARGS__)

int file_size = 0;
/*http事件回调函数*/
static void http_event_cb(http_client_t *client, int evt, int evt_code, void *arg)
{
    qhttpc_ctx_t *client_ptr = (qhttpc_ctx_t *)arg; // http通信结构体
    ql_event_t qhttpc_event_send = {0};             // 事件结构体

    EC600U_HTTP_LOG("enter");

    if (client_ptr == NULL)
        return;

    EC600U_HTTP_LOG("*client:%d, http_cli:%d", *client, client_ptr->http_client);

    if (*client != client_ptr->http_client)
        return;

    EC600U_HTTP_LOG("evt:%d, evt_code:%d", evt, evt_code);

    // evt为事件类型,获取对应信息输出到日志中
    switch (evt)
    {
    case HTTP_EVENT_SESSION_ESTABLISH: { // HTTP 会话建立事件
        // 事件状态
        if (evt_code != HTTP_SUCCESS)
        {
            EC600U_HTTP_LOG("HTTP session create failed!!!!!");
            qhttpc_event_send.id = QHTTPC_EVENT_END;
            qhttpc_event_send.param1 = (uint32)client_ptr;
            ql_rtos_queue_release(client_ptr->queue, sizeof(ql_event_t), (uint8 *)&qhttpc_event_send, QL_WAIT_FOREVER);
        }
    }
    break;
    case HTTP_EVENT_RESPONE_STATE_LINE: { // HTTP 响应状态行解析完成事件,
        if (evt_code == HTTP_SUCCESS)
        {
            int resp_code = 0;      // 状态码信息
            int content_length = 0; // 响应主体的字节长度
            int chunk_encode = 0;   // 响应主体的分块传输编码类型
            char *location = NULL;  // 重定向或指示资源的位置

            // 获取已配置的http client上下文的配置信息,存储到resp_code
            ql_httpc_getinfo(client, HTTP_INFO_RESPONSE_CODE, &resp_code); // 获取响应的状态码信息
            EC600U_HTTP_LOG("response code:%d", resp_code);
            ql_httpc_getinfo(client, HTTP_INFO_CHUNK_ENCODE, &chunk_encode); // 响应主体的分块传输编码类型

            // 获取成功
            if (chunk_encode == 0)
            {
                ql_httpc_getinfo(client, HTTP_INFO_CONTENT_LEN, &content_length); // 响应主体的字节长度
                file_size = content_length;
                EC600U_HTTP_LOG("content_length:%d", content_length);
            }
            else
            {
                EC600U_HTTP_LOG("http chunk encode!!!");
            }

            if (resp_code >= 300 && resp_code < 400)
            {
                ql_httpc_getinfo(client, HTTP_INFO_LOCATION, &location); // 重定向或指示资源的位置
                EC600U_HTTP_LOG("redirect location:%s", location);
                free(location);
            }
        }
    }
    break;
    case HTTP_EVENT_SESSION_DISCONNECT: { // HTTP 会话断开事件
        if (evt_code == HTTP_SUCCESS)
        {
            EC600U_HTTP_LOG("===http transfer end!!!!");
        }
        else
        {
            EC600U_HTTP_LOG("===http transfer occur exception!!!!!");
        }
        qhttpc_event_send.id = QHTTPC_EVENT_END;
        qhttpc_event_send.param1 = (uint32)client_ptr;
        ql_rtos_queue_release(client_ptr->queue, sizeof(ql_event_t), (uint8 *)&qhttpc_event_send, QL_WAIT_FOREVER);
    }
    break;
    }
}

static int EC600U_http_download_data(http_client_t *client, void *arg, char *data, int size, unsigned char end){
    int ret = size;
    uint32 msg_cnt = 0;                             // 消息计数
    char *read_buff = NULL;                         // 读数组指针
    qhttpc_ctx_t *client_ptr = (qhttpc_ctx_t *)arg; // 数据结构体
    ql_event_t qhttpc_event_send = {0};

    EC600U_HTTP_LOG("enter");

    if (client_ptr == NULL)
        return 0;

    EC600U_HTTP_LOG("*client:%d, http_cli:%d", *client, client_ptr->http_client);

    if (*client != client_ptr->http_client)
        return 0;

    read_buff = (char *)malloc(size + 1);
    if (read_buff == NULL)
    {
        EC600U_HTTP_LOG("mem faild");
        return 0;
    }

    memcpy(read_buff, data, size); // 将data指向的数据的size大小字节传递给read_buff

    // 获取消息队列中的消息数量，传递给msg_cnt
    if (QL_OSI_SUCCESS != ql_rtos_queue_get_cnt(client_ptr->queue, &msg_cnt))
    {
        free(read_buff);
        EC600U_HTTP_LOG("ql_rtos_queue_get_cnt faild");
        return 0;
    }

    // 上锁
    ql_rtos_mutex_lock(client_ptr->simple_lock, 100);
    if (msg_cnt >= (8 - 1) || (client_ptr->dl_total_len + size) >= client_ptr->dl_high_line)
    {
        client_ptr->dl_block = true;
        ret = HTTP_ERR_WOUNDBLOCK;
    }
    // 解锁
    ql_rtos_mutex_unlock(client_ptr->simple_lock);

    EC600U_HTTP_LOG("msg_cnt %d, total_len+size %d", msg_cnt, (client_ptr->dl_total_len + size));

    qhttpc_event_send.id = QHTTPC_EVENT_RESPONSE;
    qhttpc_event_send.param1 = (uint32)client_ptr;
    qhttpc_event_send.param2 = (uint32)read_buff;
    qhttpc_event_send.param3 = (uint32)size;

    // 释放消息队列
    if (QL_OSI_SUCCESS != ql_rtos_queue_release(client_ptr->queue, sizeof(ql_event_t), (uint8 *)&qhttpc_event_send, 0))
    {
        free(read_buff);
        EC600U_HTTP_LOG("ql_rtos_queue_release faild");
        return 0;
    }

    ql_rtos_mutex_lock(client_ptr->simple_lock, 100);
    client_ptr->dl_total_len += size;
    ql_rtos_mutex_unlock(client_ptr->simple_lock);

    EC600U_HTTP_LOG("http response :%d bytes data", size);

    return ret;
}

void EC600U_http_download_data_func(void*param)
{
    int ret = 0;
    int size = 0;
    QFILE fd = 0;
    bool dload_block = false;
    char *read_buff = NULL;
    qhttpc_ctx_t *client_ptr = NULL;
    ql_event_t *qhttpc_event_recv = (ql_event_t *)param;

    if (qhttpc_event_recv == NULL || qhttpc_event_recv->param1 == 0 || qhttpc_event_recv->param2 == 0 || qhttpc_event_recv->param3 == 0)
    {
        EC600U_HTTP_LOG("qhttpc_event_recv == NULL || qhttpc_event_recv->param1 == 0 || qhttpc_event_recv->param2 == 0 || qhttpc_event_recv->param3 == 0");
        return;
    }

    /*将数据通过http下载到sd卡中的文件里*/
    client_ptr = (qhttpc_ctx_t *)qhttpc_event_recv->param1;
    read_buff = (char *)qhttpc_event_recv->param2;
    size = (int)qhttpc_event_recv->param3;
    fd = (QFILE)client_ptr->dload_fd;
    ret = ql_fwrite(read_buff, size, 1, fd);
    if (ret > 0)
    {
        EC600U_HTTP_LOG("write data to dload file sucessfully!!!!");
        EC600U_HTTP_LOG("http write :%d bytes data", ret);
    }
    else
        EC600U_HTTP_LOG("write data to dload file failed!!!!");

    free(read_buff);

    ql_rtos_mutex_lock(client_ptr->simple_lock, 100);
    client_ptr->dl_total_len -= size;
    if (client_ptr->dl_total_len < 0)
        client_ptr->dl_total_len = 0;
    if (client_ptr->dl_block == true && client_ptr->dl_total_len < client_ptr->dl_high_line)
    {
        dload_block = client_ptr->dl_block;
        client_ptr->dl_block = false;
    }
    ql_rtos_mutex_unlock(client_ptr->simple_lock);

    if (dload_block == true)
    {
        ql_httpc_continue_dload(&client_ptr->http_client); // 恢复client对应的http下载响应
        EC600U_HTTP_LOG("ql_httpc_continue_dload");
    }
}

void http_dowload(char *event_param1, char *file_name){

    int ret = 0;                       // 状态标志位
    int i = 0;                         // 超时计数器
    int profile_idx = 1;               // PDP索引
    ql_data_call_info_s info;          // 数据信息
    char ip4_addr_str[16] = {0};       // 存储ip地址字符串
    //int run_num = 0;                   // while循环计数器
    struct stat dload_stat;            // 下载状态
    uint8_t nSim = 0;                  // sim卡号
    int flags_break = 0;               // 退出循环标志
    ql_event_t qhttpc_event_msg = {0}; // http客户端事件信息

    // 等待注册成功
    EC600U_HTTP_LOG("========== http demo start ==========");
    EC600U_HTTP_LOG("wait for network register done");
    while ((ret = ql_network_register_wait(nSim, 120)) != 0 && i < 10)
    {
        i++;
        ql_rtos_task_sleep_ms(1000);
        EC600U_HTTP_LOG("timeout %d times ,delay 1000ms", i);
    }

    // 代表注册成功
    if (ret == 0)
    {
        i = 0; // 重置超时计数器
        EC600U_HTTP_LOG("====network registered!!!!====");
    }
    else
    {
        EC600U_HTTP_LOG("====network register failure!!!!!====");
        goto exit;
    }
    // 设置ql_start_data_call和ql_stop_data_call接口的执行模式，并设置异步模式的回调函数
    ql_set_data_call_asyn_mode(nSim, profile_idx, 0); // 0 代表不使能异步模式

    // 启动拨号。默认为同步模式，TP类型为IPv4,apn名称为uninet，用户名称、密码为空，认证类型为none
    ret = ql_start_data_call(nSim, profile_idx, QL_PDP_TYPE_IP, "uninet", NULL, NULL, 0);

    // ret!=0代表启动拨号失败
    if (ret != 0)
    {
        EC600U_HTTP_LOG("====data call failure!!!!=====");
    }
    // 重置数据信息
    memset(&info, 0x00, sizeof(ql_data_call_info_s));

    // 获取拨号信息
    ret = ql_get_data_call_info(nSim, profile_idx, &info);

    // ret!=0代表拨号失败
    if (ret != 0)
    {
        EC600U_HTTP_LOG("ql_get_data_call_info ret: %d", ret);
        // 关闭拨号
        ql_stop_data_call(nSim, profile_idx);
        goto exit;
    }

    // 打印日志信息
    EC600U_HTTP_LOG("info->profile_idx: %d", info.profile_idx);
    EC600U_HTTP_LOG("info->ip_version: %d", info.ip_version);

    EC600U_HTTP_LOG("info->v4.state: %d", info.v4.state);
    inet_ntop(AF_INET, &info.v4.addr.ip, ip4_addr_str, sizeof(ip4_addr_str)); // 将ip地址转为可读字符串
    EC600U_HTTP_LOG("info.v4.addr.ip: %s\r\n", ip4_addr_str);

    inet_ntop(AF_INET, &info.v4.addr.pri_dns, ip4_addr_str, sizeof(ip4_addr_str));
    EC600U_HTTP_LOG("info.v4.addr.pri_dns: %s\r\n", ip4_addr_str);

    inet_ntop(AF_INET, &info.v4.addr.sec_dns, ip4_addr_str, sizeof(ip4_addr_str));
    EC600U_HTTP_LOG("info.v4.addr.sec_dns: %s\r\n", ip4_addr_str);

    int num_count = 100;
    while(num_count--){
        int http_method = HTTP_METHOD_NONE; 
        // 重置http结构体数据
        memset(&EC600U_test_http_demo_client, 0x00, sizeof(qhttpc_ctx_t));

        EC600U_test_http_demo_client.dl_block = false;                    // 设置下载标识符
        EC600U_test_http_demo_client.dl_high_line = HTTP_DLOAD_HIGH_LINE; // 设置下载操作的高水位线
        // 创建互斥锁，0代表成功
        ret = ql_rtos_mutex_create(&EC600U_test_http_demo_client.simple_lock);
        if (ret)
        {
            EC600U_HTTP_LOG("ql_rtos_mutex_create failed!!!!");
            break;
        }
        // 创建一个操作系统的消息队列, 最大消息大小为结构体ql_event_t的大小，最大消息数量为2
        ret = ql_rtos_queue_create(&EC600U_test_http_demo_client.queue, sizeof(ql_event_t), 8);
        if (ret){
            EC600U_HTTP_LOG("ql_rtos_queue_create failed!!!!");
            goto exit;
        }
        if (ql_httpc_new(&EC600U_test_http_demo_client.http_client, http_event_cb, (void *)&EC600U_test_http_demo_client) != HTTP_SUCCESS){
            EC600U_HTTP_LOG("http client create failed!!!!");
            goto exit;
        }
        // 写入模式打开文件，将句柄赋值给dload_fd
        EC600U_test_http_demo_client.dload_fd = ql_fopen(file_name, "w+");
        if (EC600U_test_http_demo_client.dload_fd < 0)
        {
            EC600U_HTTP_LOG("open dload file failed!!!!");
            // 释放http client上下文,以及http client上下文所占用内存块
            ql_httpc_release(&EC600U_test_http_demo_client.http_client);
            goto exit;
        }
        EC600U_HTTP_LOG("open dload file sucessfully!!!!");

        // 通过opt_tag类型信息,配置http client上下文,第二个参数为参数处理类型，第三个参数为具体的参数
        ql_httpc_setopt(&EC600U_test_http_demo_client.http_client, HTTP_CLIENT_OPT_SIM_ID, nSim);
        ql_httpc_setopt(&EC600U_test_http_demo_client.http_client, HTTP_CLIENT_OPT_PDPCID, profile_idx);
        ql_httpc_setopt(&EC600U_test_http_demo_client.http_client, HTTP_CLIENT_OPT_WRITE_FUNC, EC600U_http_download_data); // 客户端写入处理
        ql_httpc_setopt(&EC600U_test_http_demo_client.http_client, HTTP_CLIENT_OPT_WRITE_DATA, (void *)&EC600U_test_http_demo_client);  // 客户端写入数据

        //char url[] = "http://220.180.239.212:8300/10K.txt";                                       // url地址
        http_method = HTTP_METHOD_GET;                                                            // http方法设为get
        ql_httpc_setopt(&EC600U_test_http_demo_client.http_client, HTTP_CLIENT_OPT_METHOD, http_method); // 指定请求方法
        ql_httpc_setopt(&EC600U_test_http_demo_client.http_client, HTTP_CLIENT_OPT_URL, (char *)event_param1);    // 设置请求的url

        // 关联http client此上下文和http的读写回调函数
        if (ql_httpc_perform(&EC600U_test_http_demo_client.http_client) == HTTP_SUCCESS) // 关联成功
        {
            EC600U_HTTP_LOG("wait http perform end!!!!!!"); // 等待http请求执行结束
            flags_break = 0; // 重置中断标志位
            // 无限循环，等待程序中跳出
            for (;;)
            {
                memset(&qhttpc_event_msg, 0x00, sizeof(ql_event_t)); // 重置事件变量

                // 获取消息队列传递给结构体变量中的属性，param2为指向接收消息的缓冲区，param4为超时等待
                ql_rtos_queue_wait(EC600U_test_http_demo_client.queue, (uint8 *)&qhttpc_event_msg, sizeof(ql_event_t), QL_WAIT_FOREVER);

                switch (qhttpc_event_msg.id)
                {
                case QHTTPC_EVENT_RESPONSE: // 表示已收到来自服务器的响应
                {
                    EC600U_http_download_data_func((void *)&qhttpc_event_msg);
                }
                break;
                case QHTTPC_EVENT_END: // 表示请求的全部处理已经完成
                {
                    flags_break = 1; // 退出循环标志为置1
                }
                break;
                default:
                    break;
                }
                // 如果退出标志为1，代表全部处理已经完成，退出该for循环
                if (flags_break)
                    break;
                }
            }
        else
        { // 关联失败
            EC600U_HTTP_LOG("http perform failed!!!!!!!!!!");
        }
        // 重置下载状态变量
        memset(&dload_stat, 0x00, sizeof(struct stat));
        EC600U_HTTP_LOG("=========dload_file_size before:%d", dload_stat.st_size);
        // 根据文件id获取文件状态存到dload_stat
        ql_fstat(EC600U_test_http_demo_client.dload_fd, &dload_stat);
        EC600U_HTTP_LOG("=========dload_file_size after:%d", dload_stat.st_size);
        if (EC600U_test_http_demo_client.dload_fd >= 0)
        {
            ql_fclose(EC600U_test_http_demo_client.dload_fd); // 关闭下载文件
            EC600U_test_http_demo_client.dload_fd = -1;
        }
        // 释放http client上下文,以及http client上下文所占用内存块
        ql_httpc_release(&EC600U_test_http_demo_client.http_client);
        EC600U_test_http_demo_client.http_client = 0;

        // 当消息队列非空时
        if (EC600U_test_http_demo_client.queue != NULL)
        {
            while (1)
            {
                // 重置客户端信息结构体
                memset(&qhttpc_event_msg, 0x00, sizeof(ql_event_t));

                // 如果没等到消息队列，则退出循环
                if (QL_OSI_SUCCESS != ql_rtos_queue_wait(EC600U_test_http_demo_client.queue, (uint8 *)&qhttpc_event_msg, sizeof(ql_event_t), 0))
                    break;

                // 否则根据消息队列的id进行处理
                switch (qhttpc_event_msg.id)
                {
                case QHTTPC_EVENT_RESPONSE: {
                    free((void *)(qhttpc_event_msg.param2));
                }
                break;
                default:
                    break;
                }
            }
            // 删除消息队列
            ql_rtos_queue_delete(EC600U_test_http_demo_client.queue);
            EC600U_test_http_demo_client.queue = NULL;
        }
        // 删除互斥锁
        ql_rtos_mutex_delete(EC600U_test_http_demo_client.simple_lock);
        EC600U_test_http_demo_client.simple_lock = NULL;

        // 延时3s进入下一次循环
        ql_rtos_task_sleep_ms(10);
    }
    
exit:
    // 若消息队列非空
    if (EC600U_test_http_demo_client.queue != NULL)
    {
        while (1)
        {
            // 重置客户端信息结构体
            memset(&qhttpc_event_msg, 0x00, sizeof(ql_event_t));

            // 如果没等到消息队列，则退出循环
            if (QL_OSI_SUCCESS != ql_rtos_queue_wait(EC600U_test_http_demo_client.queue, (uint8 *)&qhttpc_event_msg, sizeof(ql_event_t), 0))
                break;

            // 否则根据消息队列的id进行处理
            switch (qhttpc_event_msg.id)
            {
            case QHTTPC_EVENT_RESPONSE: {
                free((void *)(qhttpc_event_msg.param2));
            }
            break;
            default:
                break;
            }
        }
        ql_rtos_queue_delete(EC600U_test_http_demo_client.queue);
    }
    
    if (EC600U_test_http_demo_client.simple_lock != NULL)
    {
        ql_rtos_mutex_delete(EC600U_test_http_demo_client.simple_lock);
    }
    return;
}