import re
import json
from typing import Any
from datetime import datetime, timedelta
import requests
import uvicorn
from fastapi import FastAPI, Request
from pydantic import BaseModel
from config import *

# fastapi
app = FastAPI()


# 统一返回数据
class BaseResponse(BaseModel):
    code: int = 200
    msg: str = "success"
    data: Any = None


# 监控视频接口
@app.get("/api/xumu/video")
async def video_query(username):
    return BaseResponse(data=get_video_url(username))


# 报警数据接口
@app.get("/api/xumu/warning")
async def get_warning(deviceId, limit, offset):
    try:
        sql = f"select * from root.warning.{deviceId}"
        if limit:
            sql += f" limit {limit}"
        if offset:
            sql += f" offset {offset}"
        # 检查iccid是否有值，如果有，添加到SQL语句中
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        return BaseResponse(data=r.json())
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


@app.get("/api/xumu/device/online")
async def device_online_query(iccid, deviceId):
    try:
        sql = "select * from root.farm.clientId where time >= 0"
        # 检查iccid是否有值，如果有，添加到SQL语句中
        if iccid:
            sql += f" and iccid = '{iccid}'"
        # 检查deviceId是否有值，如果有，添加到SQL语句中
        if deviceId:
            sql += f" and deviceId = '{deviceId}'"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        return BaseResponse(data=r.json())
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 数据查询接口
@app.get("/api/xumu/data/query")
async def data_query(deviceId):
    try:
        if deviceId is None or deviceId == "" or len(deviceId) != 4:
            return BaseResponse(code=500, msg="参数错误")
        sql = f"select last * from root.farm.{deviceId}"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        return BaseResponse(data=r.json())
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


async def rfid_last_query(rfid, deviceId):
    try:
        if deviceId is None or deviceId == "" or len(deviceId) != 4:
            return BaseResponse(code=500, msg="参数错误")
        sql = f"select * from root.farm.{deviceId} where RFID='{rfid}' order by time desc limit 1"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        return BaseResponse(data=r.json())
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 原生查询接口
@app.post("/api/xumu/rest/v2/query")
async def rest_query(request: Request):
    data = await request.json()
    r = requests.post(baseHost + queryUri, headers=headers, json=data)
    return BaseResponse(data=r.json())


# RFID查询接口
@app.get("/api/xumu/rfid/query")
async def rfid_query(rfid):
    # TODO 可能一个rfid有多个iccid设备上传，需要获取所有的设备数据，然后返回，现在这个功能只有一个设备 不一定是最新的
    try:
        sql = f"select deviceId from root.rfid where rfid='{rfid}'"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        if r.status_code != 200:
            return BaseResponse(data=r.json(), code=404, msg="404")
        r = r.json()
        values = r["values"]
        if len(values) == 0:
            return BaseResponse(msg="No Such RFID", code=500)
        deviceId = values[0][0]
        return await rfid_last_query(rfid, deviceId)
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


async def has_rfid(rfid):
    try:
        sql = f"select deviceId from root.rfid where rfid='{rfid}'"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        if r.status_code != 200:
            return BaseResponse(data=r.json(), code=404, msg="404")
        r = r.json()
        values = r["values"]
        if len(values) == 0:
            return BaseResponse(msg="No Such RFID", code=500)
        return BaseResponse(data=r)
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 设备查询接口
@app.get("/api/xumu/device/query")
async def get_device(iccid, deviceId):
    try:
        sql = "SELECT * FROM root.device where time>=0"
        # 检查iccid是否有值，如果有，添加到SQL语句中
        if iccid:
            sql += f" and iccid = '{iccid}'"
        # 检查deviceId是否有值，如果有，添加到SQL语句中
        if deviceId:
            sql += f" and deviceId = '{deviceId}'"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        return BaseResponse(data=r.json())
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 设备注册接口
@app.post("/api/xumu/device/register")
async def register(request: Request):
    try:
        data = await request.body()
        data = data.decode("utf-8")
        data = json.loads(data)
        clientid = data["clientid"]
        payload = data["payload"]
        receive_len = len(payload)
        payload = json.loads(payload)
        send_len = payload["l"]
        if receive_len != send_len:
            return BaseResponse(code=301, msg=f"data valid error, receive_len:{receive_len}")
        deviceId = payload["d"]
        iccid = payload["cid"]
        type = payload["t"]
        res = []
        # 查看设备是否已经创建
        a_device = await get_device(None, deviceId)
        if a_device.code == 200:
            v = a_device.data["values"]
            t = a_device.data["timestamps"]
            if len(v) != 0:
                timestamp = t[0]
                theIccid = v[0]
                # 如果设备上传的注册iccid和数据库查询的iccid一致，则说明已经注册过了
                if theIccid == iccid:
                    return BaseResponse(code=302, msg="该设备已经注册过了")
                # 如果不一致，则直接进行更新注册
                send_json = {
                    "sql": f"insert into root.device(timestamp, iccid, deviceId, type) values({timestamp}, '{iccid}', '{deviceId}', {type})"
                }
                r = requests.post(baseHost + nonQueryUri, headers=headers, json=send_json)
                res.append(r.json())
            else:
                # 创建该设备
                send_json = {
                    "sql": f"insert into root.device(iccid, deviceId, type) values('{iccid}', '{deviceId}', {type})"
                }
                r = requests.post(baseHost + nonQueryUri, headers=headers, json=send_json)
                res.append(r.json())
        else:
            return BaseResponse(code=500, msg="500 Internal error")
        # 插入设备状态表
        send_json = {
            "sql": f"insert into root.farm.clientId(iccid, clientId, is_online, deviceId) values('{iccid}','{clientid}', True, '{deviceId}')"
        }
        r = requests.post(baseHost + nonQueryUri, headers=headers, json=send_json)
        res.append(r.json())
        # 创建相应的数据库和字段
        sql_list = farm_sql(deviceId, type)
        for sql in sql_list:
            send_json = {
                "sql": sql
            }
            r = requests.post(baseHost + nonQueryUri, headers=headers, json=send_json)
            res.append(r.json())
        # 创建相应的数据库和字段
        sql_list = warning_sql(deviceId, type)
        for sql in sql_list:
            send_json = {
                "sql": sql
            }
            r = requests.post(baseHost + nonQueryUri, headers=headers, json=send_json)
            res.append(r.json())
        return BaseResponse(data=res)
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 数据发布接口
async def message_publish(data):
    try:
        payload = data["payload"].strip()
        receive_len = len(payload)
        payload = json.loads(payload)
        send_len = payload["l"]
        if receive_len != send_len:
            return BaseResponse(code=301, msg=f"data valid error,receive_len:{receive_len}")
        m = payload["m"]
        v = payload["v"]
        t = payload["t"]
        deviceId = v[0]
        m.append("t")
        v.append(t)
        res = []
        # 判断t是否为0，0则代表是RFID设备，需要做一个映射
        if t == 0:
            rfid = v[1]
            r = await has_rfid(rfid)
            if r.code != 200:
                sql_list = rfid_deviceId(rfid, deviceId)
                sql = sql_list[0]
                send_json = {
                    "sql": sql
                }
                r = requests.post(baseHost + nonQueryUri, headers=headers, json=send_json)
                if r.status_code == 200:
                    r = r.json()
                    if r["code"] != 200:
                        return BaseResponse(code=500, msg="RFID创建映射失败", data=r)
                res.append(r)
        send_json = {
            "devices": ["root.farm." + deviceId],
            "timestamps": [int(time.time() * 1000)],
            "measurements_list": [m],
            "data_types_list": [dataTypes[t]],
            "values_list": [v],
            "is_aligned": False
        }
        r = requests.post(baseHost + insertUri, headers=headers, json=send_json)
        r = r.json()
        res.append(r)
        if is_warning(deviceId, v, t):
            # 如果是报警数据，则发送到报警数据表
            send_json = insert_to_warning_sql(deviceId, v, t)
            r = requests.post(baseHost + insertUri, headers=headers, json=send_json)
            r = r.json()
            res.append(r)
        return BaseResponse(data=res)
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 改变设备状态接口
async def client_change_status(clientid, status):
    try:
        sql_query = f"select timestamp from root.farm.clientId where clientId='{clientid}'"
        r = requests.post(baseHost + queryUri, headers=headers, json={"sql": sql_query})
        if r.status_code == 200:
            r = r.json()
            values = r["timestamps"]
            if len(values) > 0:
                timestamp = values[0]
                sql_update_list = get_client_change_status_sql(timestamp, status)
                sql_update = sql_update_list[0]
                r = requests.post(baseHost + nonQueryUri, headers=headers, json={"sql": sql_update})
                return BaseResponse(data=r.json())
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


@app.post("/api/xumu/data/collect")
async def process_data(request: Request):
    try:
        data = await request.body()
        data = data.decode("utf-8")
        data = json.loads(data)
        event = data["event"]
        clientid = data["clientid"]
        # print(clientid + "======" + event)
        pattern = r'^f\d{1,10}$'
        amatch1 = re.match(pattern, clientid)
        # 如果两个都不满足，那就错误
        if not amatch1:
            return BaseResponse(code=500, msg="clientid error")
        # 连接成功处理
        if event == "client.connected":
            return await client_change_status(clientid, True)
        # 断开连接处理
        elif event == "client.disconnected":
            return await client_change_status(clientid, False)
        # 消息体处理
        elif event == "message.publish":
            return await message_publish(data)
        return BaseResponse()
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 报警数据最近7天的数据
@app.get("/api/xumu/warning/past_seven_days")
async def past_seven_days(deviceId):
    try:
        current_date = datetime.now().date()
        tomorrow = current_date + timedelta(days=1)
        past_6_days_date = current_date - timedelta(days=6)
        sql = f"select MAX_VALUE(value) from root.warning.{deviceId} group by ([{past_6_days_date}, {tomorrow}), 1d)"
        send_json = {
            "sql": sql
        }
        r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
        data = r.json()
        timestamps = data["timestamps"]
        times = []
        for timestamp in timestamps:
            dt = datetime.fromtimestamp(timestamp / 1000)  # 因为时间戳是以毫秒为单位的，所以需要除以1000
            # 将datetime对象格式化为只包含年月日的字符串
            year_month_day_str = dt.strftime('%Y-%m-%d')
            times.append(year_month_day_str)
        data["timestamps"] = times
        return BaseResponse(data=data)
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


# 报警数据统计接口
@app.get("/api/xumu/warning/statistics")
async def warning_statistics(deviceId):
    try:
        if deviceId is None or deviceId == "" or len(deviceId) != 4:
            return BaseResponse(code=500, msg="参数错误")
        # 获取设备总报警数
        r = requests.post(baseHost + queryUri, headers=headers,
                          json={"sql": f"select count(iccid) from root.warning.{deviceId}"})
        data = r.json()
        values = data["values"]
        total_count = 0
        if len(values) != 0:
            total_count = values[0][0]
        # 获取设备当天报警数
        now = datetime.now().date()
        r = requests.post(baseHost + queryUri, headers=headers,
                          json={
                              "sql": f"select count(iccid) from root.warning.{deviceId} where time >= {now}T00:00:00"})
        data = r.json()
        values = data["values"]
        today_count = 0
        if len(values) != 0:
            today_count = values[0][0]
        return_data = {"totoal_warning_count": total_count, "today_warning_count": today_count}
        return BaseResponse(data=return_data)
    except Exception as e:
        return BaseResponse(code=500, msg=str(e))


if __name__ == '__main__':
    uvicorn.run(app, host="0.0.0.0", port=8002)