'''
Step 6
'''
# -*- coding:utf-8 -*-
#!/usr/bin/env python
from __future__ import print_function
from base import create_csv, TARGET_DIR, MODEL_LIST
import os
import csv

m2case = {
    'I': 'LS',
    'P': 'LS',
    'C': 'LS',
    'M': 'Gender',
    'F': 'Gender',
    'H': 'Level',
    'S': 'Level',
    'D': 'SciF',
    'f': 'SciF',
}

x2tiny_conv = [0, 0, 0, 4, 3, 4, 3, 5, 3, 3, 3, 0]
merging_col = [
    [19, 6],
    [20, 7],
    [21, 10],
    [22, 3],
    [23, 6],
    [24, 11],
    [25, 4],
    [26, 12],
    [27, 14],
]


def break_into_tiny_list(incoming, length):
    if incoming:
        return [incoming[i] for i in xrange(0, length)]
    else:
        return ['' for i in xrange(0, length)]


def get_yynn(four_char_model):
    g = {}
    for m in four_char_model:
        g[m] = {}
        src_name = 'Case1_%s.csv-output.csv' % m2case[m]
        src_path = os.path.join(TARGET_DIR, src_name)
        with open(src_path, 'rb') as f:
            rows = csv.reader(f)
            for r in rows:
                if m != r[0]:
                    continue
                for l in r[1].split(','):
                    # g[m][l] = r[3:11]
                    # break into pieces
                    g[m][l] = []
                    for c in xrange(3, 11):
                        g[m][l] += break_into_tiny_list(r[c], x2tiny_conv[c])

    return g


def get_lo_yynn(lo_id, char_model, **kwargs):
    '''
    This doesn't do anything special, just try-catch and leave other def clean
    '''
    if not kwargs.get('src') or not lo_id or not char_model:
        return ['' for i in xrange(0, 28)]
    src = kwargs.get('src')
    try:
        return src[char_model][lo_id]
    except KeyError:
        return ['' for i in xrange(0, 28)]


def looop_each_4char_model():
    '''
    Each model has 6 columns of data + # (1st col)
    '''
    loop_order = 0
    offset = 6
    for m in MODEL_LIST:
        yynn = get_yynn(m)
        data = []
        fpath = os.path.join(TARGET_DIR, 'part5', 'sorted_all.csv')
        with open(fpath, 'rb') as f:
            rows = csv.reader(f)
            rows.next()
            for r in rows:
                b = [r[0], ]
                st = (offset*loop_order)+1
                b += r[st: st+offset]
                if not b[2]:
                    continue
                l = {'lo_id': b[2], 'children': []}
                for sm in m:
                    c = b[:]
                    c.append(sm)
                    c += get_lo_yynn(b[2], sm, src=yynn)
                    l['children'].append(c)

                l['merged_row'] = merge_row(l['children'])
                l['merged_col'] = merge_col(l['merged_row'])
                data.append(l)
        loop_order += 1
        write_output(m, data)


def merge_row(children):
    if len(children) < 1:
        return []
    llen = len(children[0])
    merged = children[0][0:8] + ['' for i in xrange(8, llen)]
    for i in children:
        for j in xrange(8, llen):
            if merged[j] == '':
                merged[j] = i[j]
            elif merged[j] != i[j]:
                if i[j] != '':
                    merged[j] = 'Y/N'
    # get rid of 1-char-model name
    merged = merged[0:7]+merged[8:]
    return merged


def merge_col(child):
    if len(child) < 27:
        return child
    offset = 7
    merged = child[0:19+offset]
    for x, y in merging_col:
        x += offset
        y += offset
        if merged[y] == '':
            merged[y] = child[x]
        elif merged[y] != child[x]:
            if child[x] != '':
                merged[y] = 'Y/N'
    return merged


def write_output(model_name, raw_data):
    r = []
    for i in raw_data:
        row = [
            'R_%s' % i['lo_id'][3:],
        ] + i['merged_col']
        r.append(row)
    create_csv('%s-6.csv' % model_name, r, directory='part6')


looop_each_4char_model()