import getopt
import json
import math
import os
import re
import sys
import traceback
from numpy import NaN
import requests, time

import pandas as pd
from flask import Flask, jsonify, render_template, request
from flask_cors import CORS
from pypinyin import Style, lazy_pinyin, style

app = Flask(__name__)
app.config['JSON_AS_ASCII'] = False
CORS(app)

TONE_TABLE = [
    set(['ā', 'ē', 'ī', 'ō', 'ū', 'ǖ']),
    set(['á', 'é', 'í', 'ó', 'ú', 'ǘ']),
    set(['ǎ', 'ě', 'ǐ', 'ǒ', 'ǔ', 'ǚ']),
    set(['à', 'è', 'ì', 'ò', 'ù', 'ǜ']),
    set(['a', 'e', 'i', 'o', 'u', 'ü'])
]

TONE_MAP = {
    'ā': 'a', 'ē': 'e', 'ī': 'i', 'ō': 'o', 'ū': 'u', 'ǖ': 'v',
    'á': 'a', 'é': 'e', 'í': 'i', 'ó': 'o', 'ú': 'u', 'ǘ': 'v',
    'ǎ': 'a', 'ě': 'e', 'ǐ': 'i', 'ǒ': 'o', 'ǔ': 'u', 'ǚ': 'v',
    'à': 'a', 'è': 'e', 'ì': 'i', 'ò': 'o', 'ù': 'u', 'ǜ': 'v',
    'a': 'a', 'e': 'e', 'i': 'i', 'o': 'o', 'u': 'u', 'ü': 'v'
}

INITIAL_WEIGHT = {"y":12789,"j":9523,"sh":9043,"zh":7735,"x":7656,"b":7649,"l":7240,"d":6712,"h":5992,"q":5711,"g":5614,"w":5475,"m":5111,"f":5059,"ch":4965,"t":4680,"r":3906,"z":3186,"s":3149,"c":2236,"k":2210,"":2142,"n":2079,"p":1866,"，":549,"、":1}
FINAL_WEIGHT = {"i":21826,"u":18074,"an":7550,"ing":5519,"ian":5083,"ou":4657,"en":4652,"eng":4648,"ong":4567,"ang":4460,"ao":4450,"e":4446,"in":3827,"ai":3721,"uan":3337,"uo":3279,"ei":3205,"a":3141,"ui":2936,"un":2366,"iao":2299,"iu":1937,"iang":1845,"ie":1786,"ue":1367,"o":1356,"ia":1231,"uang":1061,"er":1008,"ua":864,"，":549,"v":417,"iong":381,"uai":373,"ve":59,"、":1}

def tone_only(pinyin, **kwargs):
    for i in range(5):
        if len(set(pinyin).intersection(TONE_TABLE[i])) > 0:
            return str(i + 1)
    return pinyin

def pinyin_to_tone(pinyin, **kwargs):
    pinyin = ''.join(filter(str.isdigit, pinyin))
    if(len(pinyin) <= 0):
        return '5'
    if(pinyin[0] == '1'):
        return '1'
    elif (pinyin[0] == '2'):
        return '2'
    elif (pinyin[0] == '3'):
        return '3'
    elif (pinyin[0] == '4'):
        return '4'
    return '5'


def pinyin_only(pinyin, **kwargs):
    for i in range(5):
        if len(set(pinyin).intersection(TONE_TABLE[i])) > 0:
            for s in TONE_TABLE[i]:
                pinyin = pinyin.replace(s, TONE_MAP[s])
    return pinyin

def merge_pinyin_tone(pinyin, tone):
    plist = pinyin.split()
    for i, t in enumerate(tone):
        if(tone != '5'):
            plist[i] = plist[i] + t
    return ' '.join(plist)

style.register('TONE_ONLY', tone_only)

def trim_space(s):
    return s.replace(' ', '').replace(',', '').replace('，', '')

def remove_at(s, i):
    return s[0:i] + s[i+1:]

def compute_pinyin(s, style=None):
    if style is None:
        return ' '.join(lazy_pinyin(s))
    else:
        return ' '.join(lazy_pinyin(s, style=style))

all_idiom = None

def query_word(word):
    # {"tipsList":[{"fpindex":"andmkbblbeoojhcp","fpinyin":"bā miàn zhāng luo","fname":"八面张罗"}],"found":"true"}
    ret = requests.get("https://cy.hwxnet.com/searchtips.do?wd=%s&timestamp=%d&qt=1" % (word,int(time.time() * 1000)))
    time.sleep(0.1)
    data = ret.json()
    if len(data["tipsList"]) > 0:
        return data["tipsList"][0]['fpinyin']
    return ''


def init():
    global all_idiom
    if os.path.exists("all_idiom.csv"):
        all_idiom = pd.read_csv('all_idiom.csv')
        all_idiom["pinyin_initials"].str.split(",").explode("splited").value_counts().to_json()
        all_idiom["pinyin_finals"].str.split(",").explode("splited").value_counts().to_json()
    else:
        all_idiom = pd.read_json('idiom.json')
        idiom_frequency = pd.read_csv('idiom_frequency.csv')
        all_idiom = all_idiom.merge(idiom_frequency, how='outer', on='word')
        all_idiom['frequency'] = all_idiom['frequency'].fillna(1).astype(int)
        all_idiom['pinyin'] = all_idiom.apply(lambda x: compute_pinyin(x['word'], style=Style.TONE) if x['pinyin'] != NaN else x['pinyin'], axis=1)
        all_idiom['pinyin_r'] = all_idiom.apply(lambda x: pinyin_only(x['pinyin']) if x['pinyin_r'] != NaN else x['pinyin_r'], axis=1)
        all_idiom['pinyin_rt'] = all_idiom.apply(lambda x: int(''.join(map(lambda y: str(len(y)), re.split('[ ,，]',x['pinyin_r'])))), axis=1)
        all_idiom['pinyin_tone'] = all_idiom.apply(lambda x: ''.join([tone_only(y) for y in x['pinyin'].split()]), axis=1)
        all_idiom['pinyin_initials' ] = all_idiom.apply(lambda x: ','.join(list(lazy_pinyin(x['word'], style=Style.INITIALS, strict=False))), axis=1)
        all_idiom['pinyin_finals'] = all_idiom.apply(lambda x: ','.join(list(lazy_pinyin(x['word'], style=Style.FINALS, strict=False))), axis=1)
        all_idiom.to_csv("all_idiom.csv")

def fetch_next_input(parameter):
    parameter_rst = parameter.split(';', 1)
    if len(parameter_rst) > 1:
        parameter_rst = parameter_rst[1]
    else:
        parameter_rst = ''
    parameter = parameter.split(';')[0]
    return parameter,parameter_rst

def filter_group_mode1(parameter, group, hits):
    for i in range(len(parameter)):
        key0 = 'pinyin0_%d' % i
        key1 = 'pinyin1_%d' % i
        key2 = 'pinyin2_%d' % i
        group[key0] = group.apply(lambda x: ''.join(set(trim_space(x['pinyin_r']))), axis=1)
        group[key1] = group.apply(lambda x: ''.join(set(remove_at(trim_space(x['pinyin_r']), i))), axis=1)
        group[key2] = group.apply(lambda x: trim_space(x['pinyin_r'])[i], axis=1)
    includes = set()
    for i, hit in enumerate(list(trim_space(hits))):
        if hit == '2':
            includes.add(parameter[i])
    for i, hit in enumerate(list(trim_space(hits))):
        key0 = 'pinyin0_%d' % i
        key1 = 'pinyin1_%d' % i
        key2 = 'pinyin2_%d' % i
        target = parameter[i]
        if hit == '0' and target not in includes:
            group = group[~group[key0].str.contains(target, regex=False, case=True, na=False)]
        elif hit == '1':
            group = group[(group[key2] != target) & (group[key1].str.contains(target, regex=False, case=True, na=False))]
            includes.add(target)
        elif hit == '2':
            group = group[group[key2] == target]
        if len(group) <= 1:
            break
    return group

def filter_with_target_field(group, field_name, values, value_hits):
    includes_value = set()
    for i in range(4):
        if value_hits[i] == '2':
            includes_value.add(values[i])
    for i in range(4):
        if value_hits[i] == '0' and values[i] not in includes_value:
            group = group[~group[field_name].str.contains(values[i], regex=False, case=True, na=False)]
        elif value_hits[i] == '1':
            group = group[(group[field_name].str[i] != values[i]) & group[field_name].str.contains(values[i], regex=False, case=True, na=False)]
            includes_value.add(values[i])
        elif value_hits[i] == '2':
            group = group[group[field_name].str[i] == values[i]]
        if len(group) <= 1:
            break
    return group

def filter_group_model2(parameter, group, hits, tones, tone_hits, word_hits):
    group = filter_with_target_field(group, 'pinyin_tone', tones, tone_hits)
    if len(group) <= 1:
        return group
    group = filter_with_target_field(group, 'word', parameter, word_hits)
    if len(group) <= 1:
        return group
    hits = hits.split()
    for i in range(4):
        target = parameter[i]
        targets = list()
        targets.append(lazy_pinyin(target, style=Style.INITIALS, strict=False)[0])
        targets.append(lazy_pinyin(target, style=Style.FINALS, strict=False)[0])
        pinyin_hit = hits[i]
        for j,name in enumerate(['initials', 'finals']):
            key = 'pinyin_%s' % name
            if pinyin_hit[j] == '0':
                group = group[group[key].str.count('(^|[,])%s([,]|$)' + targets[j]) == 0]
            elif pinyin_hit[j] == '1':
                group = group[(group[key].str.count('(^|[,])%s([,]|$)' % targets[j]) > 0) & (group[key].str.count(('^(\w*,){%d}%s([,]|$)' % (i, targets[j]))) == 0)]
            elif pinyin_hit[j] == '2':
                group = group[group[key].str.count(('^(\w*,){%d}%s([,]|$)' % (i, targets[j]))) > 0]
            if len(group) <= 1:
                return group
    return group

def filter_logic(mode, parameter):
    global all_idiom
    if mode == '0':
        groups = all_idiom.groupby(by='pinyin_rt')
        group = groups.get_group(int(parameter)).copy()
        return all_idiom, group
    elif mode == '1':
        parameter, parameter_rst = fetch_next_input(parameter)

        hits = parameter.split(',')[1]
        parameter = trim_space(parameter.split(',')[0])
 
        count = ''.join([str(len(x)) for x in hits.split()])
        groups = all_idiom.groupby(by='pinyin_rt')
        group = groups.get_group(int(count)).copy()

        while(True):
            group = filter_group_mode1(parameter, group, hits)
            if(len(group) > 1 and len(parameter_rst) > 0):
                parameter, parameter_rst = fetch_next_input(parameter_rst)

                hits = parameter.split(',')[1]
                parameter = trim_space(parameter.split(',')[0])
            elif len(group) <= 0:
                break
            else:
                break
        return all_idiom, group
    elif mode == '2':
        four_idiom = all_idiom[all_idiom['word'].str.len() == 4]
        group = four_idiom[four_idiom['pinyin_tone'].str.startswith(parameter)].copy()
        return four_idiom, group
    elif mode == '3':
        four_idiom = all_idiom[all_idiom['word'].str.len() == 4]

        parameter, parameter_rst = fetch_next_input(parameter)

        hits = parameter.split(',')[1]
        parameter = parameter.split(',')[0]
        tones = ''.join(lazy_pinyin(parameter, style="TONE_ONLY"))
        tone_hits=hits[-4:]
        word_hits=hits[-9:-5]
        hits=hits[:-10]

        group = four_idiom.copy()
        while(True):
            group = filter_group_model2(parameter, group, hits, tones, tone_hits, word_hits)
            if(len(group) > 1 and len(parameter_rst) > 0):
                parameter, parameter_rst = fetch_next_input(parameter_rst)

                hits = parameter.split(',')[1]
                parameter = parameter.split(',')[0]
                tones = ''.join(lazy_pinyin(parameter, style="TONE_ONLY"))
                tone_hits=hits[-4:]
                word_hits=hits[-9:-5]
                hits=hits[:-10]
            elif len(group) <= 0:
                break
            else:
                break
        return four_idiom, group
    elif mode == '4':
        four_idiom = all_idiom[all_idiom['word'].str.len() == 4]
        group = four_idiom[four_idiom['word'].str.count(parameter) > 0].copy()
        return four_idiom, group
    elif mode == '5':
        four_idiom = all_idiom[all_idiom['word'].str.len() == 4]
        group = four_idiom[four_idiom['pinyin_r'].str.count(parameter) > 0].copy()
        return four_idiom, group
    return None, None

def print_max_group(all_idiom, group, num):
    for item in get_max_group(all_idiom, group, num):
        print(item)

def get_pinyin_weight(initials, finals):
    initials = set(initials.split(','))
    weight = sum([INITIAL_WEIGHT[w] for w in initials])
    finals = set(finals.split(','))
    weight += sum([FINAL_WEIGHT[w] for w in finals])
    return weight

def get_max_group(all_idiom, group, num):
    result = list()
    if(len(group) == 0):
        return result
    group['pinyin_c'] = group.apply(lambda x: (math.log(x['frequency'], 2)/16 + 1) * get_pinyin_weight(x['pinyin_initials'], x['pinyin_finals']), axis=1)
    ret_list = group.nlargest(num, ['pinyin_c', 'frequency']).index.tolist()
    for i in ret_list:
        result.append(json.loads(all_idiom.loc[i].to_json(orient = 'index',force_ascii=False)))
    return result

@app.route('/predict', methods=['GET'])
def predict():
    try:
        mode = request.args.get('mode')
        parameter = request.args.get('parameter')
        if len(trim_space(parameter)) == 0:
            return jsonify({'status': 1, 'message': '请输入参数', 'result': []})
        all_idiom, group = filter_logic(mode, parameter)
        result = get_max_group(all_idiom, group, 6)
        return jsonify({'status': 0, 'message': 'success', 'result': result})
    except:
        traceback.print_exc()
        return jsonify({'status': 2, 'message': '执行出错', 'result': []})


@app.route('/', methods=['GET'])
def index():
    return render_template('index.html')

def main(argv):
    # mode = '0'
    # parameter = '3323'
    # mode = '1'
    # parameter = 'bai vvv vv vvv,012 000 00 000;bai tou er xin,012 010 10 001'
    mode = '2'
    parameter = '2134'
    # mode = '3'
    # parameter = '行之有效,00 11 10 00 0100 1101;各执一词,00 11 12 22 0010 1022'
    num = 6
    try:
        opts, args = getopt.getopt(argv, "hm:p:n:", ["mode=", "parameter=", "num="])
    except getopt.GetoptError:
        print('test.py -m <mode> -p <parameter> -n <num>')
        sys.exit(2)
    for opt, arg in opts:
        if opt == '-h':
            print('test.py -i <mode> -o <parameter>')
            sys.exit()
        elif opt in ("-m", "--mode"):
            mode = arg
        elif opt in ("-p", "--parameter"):
            parameter = arg
        elif opt in ("-n", "--num"):
            num = int(arg)
    all_idiom, group = filter_logic(mode, parameter)
    if all_idiom is not None and len(group) > 0:
        print_max_group(all_idiom, group, num)
    else:
        print('未找到匹配项')

if __name__ == '__main__':
    current_work_dir = os.path.dirname(__file__)
    os.chdir(current_work_dir)
    init()
    # main(sys.argv[1:])
    app.run(debug=True, host="0.0.0.0")