#!/bin/python

import shimatta_label.storage_label
import shimatta_label.component_label
import shimatta_label.brother_ql_wrapper as ql_wrapper
import sys
import requests
import urllib.parse
import getpass
import json
import re

MICE_TOILET_TEMPLATE = 'https://parts.shimatta.net/api/v1/parts/storages/075acbaf-ed60-47b9-9bd5-98bfbc3a79ea/'

def get_component_print_name(comp):
	'''
	Generates a human readeable string from the parameters depending on the type
	'''
	param_dict = {param['ro_parameter_type']: param for param in comp['ro_parameters']}

	if comp['ro_component_type'] in ['Resistor', 'Resistor NTC']:
		resistor_value = param_dict['Resistance']['value']
		if resistor_value >= 10e8:
			comp_name = f'{int(resistor_value / 10e8)}G{str(int(resistor_value % 10e8)).rstrip('0')}'
		elif resistor_value >= 10e5:
			comp_name = f'{int(resistor_value / 10e5)}M{str(int(resistor_value % 10e5)).rstrip('0')}'
		elif resistor_value >= 10e2:
			comp_name = f'{int(resistor_value / 10e2)}K{str(int(resistor_value % 10e2)).rstrip('0')}'
		elif resistor_value >= 1.0:
			comp_name = f'{int(resistor_value)}R{str(round(resistor_value % 1, 6))[2:].rstrip('0')}'
		elif resistor_value == 0.0:
			comp_name = '0R'
		else:
			comp_name = f'R{str(round(resistor_value % 1, 6))[2:]}'

		if comp['ro_component_type'] == 'Resistor NTC':
			comp_name += ' NTC'

		if param_dict['Resistor technology']['text_value'] == 'laser trim':
			comp_name += ' L'
	else:
		print(f'Unknown component type: {comp['ro_component_type']}')
		return None
	
	return comp_name

def char_range(c1, c2):
    """Generates the characters from `c1` to `c2`, exclusive."""
    for c in range(ord(c1), ord(c2)):
        yield chr(c)

def handle_storage_qr_code(base_url, token, uuid):
	storage_query_url = urllib.parse.urljoin(base_url, 'api/v1/parts/storages/')
	query_res = requests.get(storage_query_url, headers={'Authorization': f'Token {token}'}, params={'id':uuid})
	if query_res.status_code != 200:
		print('Request unsuccessful')
		sys.exit(-3)

	print('Storage found: ')
	storage_json = query_res.json()
	if storage_json['count'] != 1:
		print('Storage json does not contain correct amount of storage entries')
		sys.exit(-1)

	storage = storage_json['results'][0]
	print(f'ID: {storage["id"]}')
	print(f'Path: {storage["full_path"]}')

	labels = []

	if storage['template'] == MICE_TOILET_TEMPLATE:

		side = input('Select type to be printed (top, bottom, storage) [t,b,s]:')
		if side not in ['t', 'b', 's']:
			print('Error - invalid side')
			return None

		if side == 's':
			label = shimatta_label.storage_label.StorageLabelSmdMiceToilet()
			storage = storage_json['results'][0]
			label.put_content(f'[stor_uuid]{storage["id"]}',
							storage['full_path'],
							storage['verbose_name'])
			return [label]

		row = input('Select which row shall be printed [1..3]:')
		if row not in char_range('1', '4'):
			print('Error - invalid row')
			return None
		row = int(row)

		# get children
		query_res = requests.get(storage_query_url, headers={'Authorization': f'Token {token}'}, params={'parent_storage':uuid, 'expand_stocks': True})
		if query_res.status_code != 200:
			print('Request for children unsuccessful')
			sys.exit(-3)

		storage_json = query_res.json()
		if storage_json['count'] != 24:
			print('Storage json does not contain correct amount of storage entries')
			sys.exit(-1)

		# pagination
		storage_list = storage_json['results']
		while storage_json['next']:
			query_res = requests.get(storage_json['next'], headers={'Authorization': f'Token {token}'}, params={'parent_storage':uuid})
			storage_json = query_res.json()
			storage_list.extend(storage_json['results'])

		storage_dict = {storage['name']: storage for storage in storage_list}

		if side == 'b':

			for column in char_range('a','i'):
				label = shimatta_label.storage_label.StorageLabelSmdMiceToiletBottomQR()
				field_uuid = storage_dict[f'{column}{row}']['id']
				label.put_content(f'[stor_uuid]{field_uuid}')
				labels.append(label)

		elif side == 't':

			for column in char_range('a','i'):
				label = shimatta_label.storage_label.StorageLabelSmdMiceToiletTop()

				if not storage_dict[f'{column}{row}']['ro_stocks']:
					print("Only printing start of row!!!")
					break

				comp = storage_dict[f'{column}{row}']['ro_stocks'][0]['ro_component']
				param_dict = {param['ro_parameter_type']: param for param in comp['ro_parameters']}

				comp_name = get_component_print_name(comp)
				if not comp_name:
					return[]

				label.put_content(comp_name,
								f"{param_dict['Tolerance']['value']}% {comp['package_data']['name']}",
								comp['ro_manufacturer_name'])

				labels.append(label)
	else:
		label = shimatta_label.storage_label.StorageLabel()
		label.put_content(f'[stor_uuid]{uuid}', storage['full_path'], storage['verbose_name'])
		labels.append(label)

	return labels

def handle_component_qr_code(base_url, token, uuid):
	query_url = urllib.parse.urljoin(base_url, 'api/v1/parts/components/')
	query_res = requests.get(query_url, headers={'Authorization': f'Token {token}'}, params={'id': uuid})
	if query_res.status_code != 200:
		print('Request unsuccessful')
		sys.exit(-3)
	
	component = json.loads(query_res.content)

	if component['count'] != 1:
		sys.exit(-1)
	component = component['results'][0]
	pkg = ''
	name = component['name']
	if component.get('package_data') is not None:
		pkg = component['package_data']['name']
	manufacturer = component.get('ro_manufacturer_name')
	if manufacturer is None:
		manufacturer = ''

	print(f'Component found: Name: {name}, Package: {pkg}, Manufacturer: {manufacturer}')

	labels = []
	label = shimatta_label.component_label.ComponentLabelSmall()

	comp_name = get_component_print_name(component)
	if not comp_name:
		return[]

	label.put_content(f'[comp_uuid]{uuid}', comp_name, manufacturer, pkg)
	labels.append(label)

	return labels

if len(sys.argv) < 2:
	print(f'Usage: {sys.argv[0]} <shimatta kenkyusho url>')
	sys.exit(-1)

qr_re = re.compile(r'^\[(?P<prefix>[a-zA-Z_]+)\](?P<uuid>[a-fA-F0-9\-]+)')

kenkyusho_url = sys.argv[1]
print(f"Shimatta Kenkyusho instance: {kenkyusho_url}")

login_url = urllib.parse.urljoin(kenkyusho_url, 'api/v1/token-auth/')
print(f'Token auth url: {login_url}')

username = input('Username: ')
password = getpass.getpass()

ans = requests.post(login_url, data= {'username': username, 'password': password})
if ans.status_code != 200:
	print(f'Got status code {ans.status_code}')
	sys.exit(-1)

login_token = json.loads(ans.content)['token']


while True:
	qr = input('Please scan Storage or Component QR: ')

	matches = qr_re.match(qr)
	if matches.group('prefix') == 'stor_uuid' :
		labels = handle_storage_qr_code(kenkyusho_url, login_token, matches.group('uuid'))
	elif matches.group('prefix') == 'comp_uuid':
		labels = handle_component_qr_code(kenkyusho_url, login_token, matches.group('uuid'))
	else:
		print('Invalid QR code!')
		continue

	if labels:
		ql_wrapper.print_labels(labels)