import uvicorn
import fastapi
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import HTMLResponse
from linebot import LineBotApi, WebhookHandler
from linebot.models import (
    MessageEvent, TextMessage, TextSendMessage, FollowEvent, TemplateSendMessage, ButtonsTemplate, URITemplateAction,
)
import dataset
import requests
import json
import qrcode
from PIL import Image
import base64, io
from random import randrange
import models

app = fastapi.FastAPI()

app.add_middleware(
    CORSMiddleware,
    allow_origins=['*'],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# bot config
line_bot_api = LineBotApi("SJT7VPT4RMQFLcS27jQBy3FcC24gtDrkcwJWZ5Xzqesr5T78LOKudHEJzt0k3b2S7n4KPwf27J7DVz2c8NQ4plSaaQylEeB1cYrfejaE/RPG/lCIQBYe4iBTzo26s4i2PcmT89837per/lTyvhVIKAdB04t89/1O/w1cDnyilFU=")
handler = WebhookHandler("411ae3ef7e766739ed2c2c27b249d010")

# callback event
@app.post("/callback")
async def callback(request: fastapi.Request):
    signature = request.headers['X-Line-Signature']
    body = await request.body()
    handler.handle(body.decode('utf-8'), signature)
    return 'OK'

# nft collection api
@app.get("/collection/{userid}")
def collection(userid):
    xname = userid
    sql = 'SELECT a.* FROM nft a INNER JOIN ( SELECT userid FROM users WHERE userid="'+xname+'" ) b ON b.userid = a.userid'
    result = db.query(sql)
    rows = {}
    i = 0
    for row in result:
        rows[i] = row
        i += 1
    return rows

# receive handler
@app.get("/receive/{userid}")
def receive(userid):
    if not table.find_one(userid=userid):
        return "ERROR: User Not Found"
    else:
        result = table.find_one(userid=userid)
        return {"userid": result['userid'], "base": result['base'], "useraddress": result['useraddress']}

# TODO send handler 發送nft
# @app.get("/collection/{userid}/{hash}")
# def blockchain():

# TODO post blockchain api 上鏈nft
# @app.get("/collection/{userid}/{art}")
# def blockchain():

# TODO get transaction update 取得交易結果
# @app.get("/collection/{userid}")
# def blockchain():

# follow event
@handler.add(FollowEvent)
def handle_follow(event):
    # get user id when follow
    real_user_id = event.source.user_id
    rand_num = str(randrange(99999))
    # db connect
    db = dataset.connect('mysql://choozmo:pAssw0rd@db.ptt.cx:3306/arkcard?charset=utf8mb4')
    table = db['users']

    print(rand_num)
    user_id = event.source.user_id + rand_num
    result = table.find_one(userid=real_user_id)

    if result:
        print(real_user_id)
        line_bot_api.reply_message(
            event.reply_token,
            TextSendMessage(text='很高興再見到您！'))
    else:
        print("n")
        # create user account
        url = 'https://nft-api-staging.joyso.io/api/v1/accounts'
        headers = {'Authorization': 'Basic bmZ0OmMxOTEzOWMzYjM3YjdjZWU3ZmY3OTFiZGU3NzdjZWNl'}
        # setup for temp use (unique id)
        data = 'uid=' + user_id
        r = requests.post(url=url, headers=headers, data=data)
        # extract the account address
        dict_str = json.loads(r.text)
        user_account = dict_str['account']
        user_address = user_account['address']

        # generate qr code from user id
        qr = qrcode.QRCode(
            version=1,
            box_size=10,
            border=5)
        qr.add_data(user_address)
        qr.make(fit=True)

        img_qr = qr.make_image(fill='black', back_color='white')
        filename = "qrcode/" + real_user_id + '.png'
        img_save = img_qr.save(filename)

        # open file
        im = Image.open(filename)

        # convert
        imgByteArr = io.BytesIO()
        im.save(imgByteArr, format='PNG')

        # decode to ascii
        x = imgByteArr.getvalue()
        base64.b64encode(x).decode('ascii')
        encode = base64.b64encode(x).decode('ascii')

        # add to db
        data = dict(base64=encode)
        result = data['base64']
        # table.update(dict(userid=userid, base=result), ['userid'])

        # write in sql
        data = dict(userid=real_user_id, useraddress=user_address, base=result)
        table.insert(data)

        line_bot_api.reply_message(
            event.reply_token,
            TextSendMessage(text='歡迎加入好友'))

# message handler
@handler.add(MessageEvent, message=TextMessage)
def message(event):
    if '我要發送' in event.message.text:
        button_template_message = ButtonsTemplate(
            title=' ',
            text='點擊並打開收藏的NFT，可以選擇想要發送的NFT給對方！',
            actions=[
                URITemplateAction(
                    label='打開發送頁面',
                    uri='http://ark.cards/collect.html?' + event.source.user_id),])
        line_bot_api.reply_message(
            event.reply_token,
            TemplateSendMessage(
                alt_text="Receive",
                template=button_template_message))

    elif '我要接收' in  event.message.text:
        button_template_message = ButtonsTemplate(
            title=' ',
            text='點擊並打開接收頁面，即可分享接收地址給對方！',
            actions=[
                URITemplateAction(
                    label='打開接收頁面',
                    uri='http://ark.cards/qr-code.html?' + event.source.user_id),])
        line_bot_api.reply_message(
            event.reply_token,
            TemplateSendMessage(
                alt_text="Receive",
                template=button_template_message))

    elif '我的NFT收藏' in event.message.text:
        button_template_message = ButtonsTemplate(
            title=' ',
            text='點擊並打開收藏頁面，就可以查看所有的收藏品哦！',
            actions=[
                URITemplateAction(
                    label='打開我的NFT收藏頁面',
                    uri='http://ark.cards/collect.html?' + event.source.user_id),])
        line_bot_api.reply_message(
            event.reply_token,
            TemplateSendMessage(
                alt_text="Receive",
                template=button_template_message))

    else:
        button_template_message = ButtonsTemplate(
            title=' ',
            text='更多的服務內容，歡迎請上我們的官網！',
            actions=[
                URITemplateAction(
                    label='ArkCard的官網',
                    uri='http://ark.cards'),])
        line_bot_api.reply_message(
            event.reply_token,
            TemplateSendMessage(
                alt_text="Receive",
                template=button_template_message))


if __name__ == '__main__':
    uvicorn.run("main:app", host="0.0.0.0", port=8228, reload=True)