import socket
import os
import platform
import time

import psutil

from apiflask import APIBlueprint
from flask import session

from app import rpc
from app.api.v1.exception.api import ImageUploadError, UserInfoError, ImageNotFound, DietCreationError
from app.api.v1.schema.api import ImageIn, ImagePreSignUrlOut, ImagePreSignUrlIn, DietImageIn
from app.util.auth import login_required

api = APIBlueprint('api', __name__)


@api.post('/images')
@api.doc(summary='上传头像图片', description='上传头像图片')
@api.input(ImageIn, location='files')
@api.output(ImagePreSignUrlOut)
@login_required
def upload_avatar_image(files_data):
    f = files_data['image']
    try:
        result = rpc.storage.upload(file_name=str(session['user_id'] + f'_{f.filename}'),
                                    file_binary=f.read(),
                                    bucket='bodyrecord',
                                    folder='avatar',
                                    app='bodyrecord')
    except Exception as e:
        raise ImageUploadError(extra_data={'error_docs': str(e)})

    if result.get('status') and result['status'] == 'UPLOADED':
        try:
            rpc.admin.set_user_info(session['user_id'],
                                    avatar_id=result['_id'])
        except Exception as e:
            raise UserInfoError(extra_data={'error_docs': str(e)})

        try:
            presign_url = rpc.storage.get_presign_url(result['_id'],
                                                      'bodyrecord',
                                                      bucket='bodyrecord')
        except Exception as e:
            raise ImageNotFound(extra_data={'error_docs': str(e)})

        return {'image_presign_url': presign_url}
    else:
        raise ImageUploadError()


@api.post('/images/diet')
@api.doc(summary='上传食物图片', description='上传食物图片')
@api.input(DietImageIn, location='files')
@api.output(ImagePreSignUrlOut)
@login_required
def upload_diet_image(files_data):
    f = files_data['image']
    category_dict = {
        0: '早餐',
        1: '午餐',
        2: '晚餐',
        3: '零食',
        4: '下午茶',
        5: '夜宵',
    }
    category = category_dict[files_data['category']]  # 食物类别
    try:
        result = rpc.storage.upload(file_name=str(session['user_id'] + f'_{f.filename}'),
                                    file_binary=f.read(),
                                    bucket='bodyrecord',
                                    folder='diet',
                                    app='bodyrecord')
    except Exception as e:
        raise ImageUploadError(extra_data={'error_docs': str(e)})

    if result.get('status') and result['status'] == 'UPLOADED':
        # 图片上传成功，处理业务逻辑
        try:
            rpc.diet.add(**{
                'user_id': session['user_id'],
                'category': category,
                'diet_image_id': result['_id'],
            })
        except Exception as e:
            raise DietCreationError(extra_data={'error_docs': str(e)})

        try:
            presign_url = rpc.storage.get_presign_url(result['_id'],
                                                      'bodyrecord',
                                                      bucket='bodyrecord')
        except Exception as e:
            raise ImageNotFound(extra_data={'error_docs': str(e)})

        return {'image_presign_url': presign_url}
    else:
        raise ImageUploadError()


@api.get('/images/presign_url')
@api.input(ImagePreSignUrlIn, location='query')
@api.output(ImagePreSignUrlOut)
@api.doc(summary='获取图片预签名链接', description='获取图片预签名链接')
def get_image_presign_url(query_data):
    try:
        presign_url = rpc.storage.get_presign_url(query_data['avatar_id'],
                                                  'bodyrecord',
                                                  bucket='bodyrecord',
                                                  expire_time=query_data.get('expire_time', 3600))
    except Exception as e:
        raise ImageNotFound(extra_data={'error_docs': str(e)})
    return {'image_presign_url': presign_url}


@api.get('/hello')
def hello():
    time.sleep(2)
    result_one = f'我是您的专属接口提供服务器：'
    result_two = f'我的机器参数如下'
    result_three = f'操作系统：{platform.system()}'
    text = """
        <style type="text/css">
            * {
                padding: 0;
                margin: 0;
            }

            div {
                padding: 4px 48px;
            }

            a {
                color: black;
                cursor: pointer;
                text-decoration: none
            }

            a:hover {
                text-decoration: None;
            }

            body {
                background: #fff;
                font-family:
                    "Century Gothic", "Microsoft yahei";
                color: #333;
                font-size: 18px;
            }

            h1 {
                font-size: 100px;
                font-weight: normal;
                margin-bottom: 12px;
            }

            p {
                line-height: 1.6em;
                font-size: 42px
            }
        </style>
        <div style="padding: 24px 48px;">
            <p>
                <a href="" target="_Blank">您好，PZX 大人！</a>
                <br />
                <span style="font-size:30px">
                    <a href=""> """ + result_one + """</a>
                    <br />
                    <a href=""> """ + f'{os.environ["HOSTNAME"]} ' + f'进程 {socket.gethostname()}' + """</a>
                </span>
                <br />
                <span style="font-size:25px">
                    <a href=""> """ + result_two + """</a>
                </span>
                <br />
                <span style="font-size:20px">
                    <a href=""> """ + result_three + """</a>
                    <br />
                    <a href=""> """ + f'CPU 核数：{psutil.cpu_count()}，目前 CPU 占用率: {psutil.cpu_percent()}' + """</a>
                    <br />
                    <a href=""> """ + f'总内存 {round(psutil.virtual_memory().total / 1024 / 1024, 2)} MB，使用中内存：{round(psutil.virtual_memory().used / 1024 / 1024, 2)} MB' + """</a>
                    <br />
                    <a href=""> """ + f'磁盘总空间 {round(psutil.disk_usage("/").total / 1024 / 1024 / 1024, 2)} G，磁盘使用情况：{round(psutil.disk_usage("/").used / 1024 / 1024 / 1024, 2)} G' + """</a>
                </span>
            </p>
        </div>
        """
    return text