#!/bin/bash

import sqlite3
import csv
import os
from uuid import uuid4
from os import path

RECIPES='recipes/'
SUPPLY='supply.csv'

con = sqlite3.connect('developers.sqlite')
c = con.cursor()

def uuid () :
	return str(uuid4())

def getRecipe (name) :
	query="SELECT recipe_id FROM recipes WHERE (name = LOWER(?)) LIMIT 1;"
	res = c.execute(query, (name,))
	return c.fetchone()

def hasRecipe (name) :
	recipe = getRecipe(name)
	if recipe is not None:
		return recipe[0]
	return ''

def createRecipe (name) :
	id=uuid()
	query="INSERT OR IGNORE INTO recipes (recipe_id, name) VALUES (?, LOWER(?));"
	c.execute(query, (id, name,))
	con.commit()
	return id

def getChemical (chemical) :
	query="SELECT chemical_id FROM chemicals WHERE (name = LOWER(?)) LIMIT 1;"
	res = c.execute(query, (chemical,))
	return c.fetchone()

def hasChemical (chemical) :
	chemical = getChemical(chemical)
	if chemical is not None:
		return chemical[0]
	return ''

def createChemical (chemical) :
	id=uuid()
	query="INSERT OR IGNORE INTO chemicals (chemical_id, name) VALUES (?, LOWER(?));"
	c.execute(query, (id, chemical,))
	con.commit()
	return id

def ensureChemical (chemical) :
	chemical_id = hasChemical(chemical)
	if chemical_id == '' :
		chemical_id = createChemical(chemical)
	return chemical_id

def getSupply (url) :
	query="SELECT supply_id FROM supply WHERE (url = ?) LIMIT 1;"
	res = c.execute(query, (url,))
	return c.fetchone()

def hasSupply (url) :
	supply = getSupply(url)
	if supply is not None:
		return supply[0]
	return ''

def createSupply (chemical_id, url, g, ml, price) :
	id=uuid()
	query="INSERT OR IGNORE INTO supply (supply_id,chemical_id,url,grams,milliliters,price) VALUES (?,?,?,?,?,?);"
	c.execute(query, (id,chemical_id,url,g,ml,price,))
	con.commit()
	return id

def ensureSupply (chemical_id, url, g, ml, price) :
	supply_id = hasSupply(url)
	if supply_id == '' :
		supply_id = createSupply(chemical_id, url, g, ml, price)
	return supply_id

def displaySupply (supply_id, chemical) :
	query="SELECT round((price/100.0)/grams, 2) FROM supply WHERE (supply_id = ?);"
	res = c.execute(query, (supply_id,))
	data = c.fetchone()
	ratio = data[0]
	print(f"{chemical}: {ratio} $/g")

def getRecipe (recipe) :
	query="SELECT recipe_id FROM recipes WHERE (name = LOWER(?)) LIMIT 1;"
	res = c.execute(query, (recipe,))
	return c.fetchone()

def hasRecipe (recipe) :
	recipe = getRecipe(recipe)
	if recipe is not None:
		return recipe[0]
	return ''

def createComponent (chemical, recipe_id, chemical_id, g, ml, makes, note) :
	id = uuid()
	query="INSERT OR IGNORE INTO components (component_id,recipe_id,chemical_id,grams,milliliters,makes,note) VALUES (?,?,?,?,?,?,?);"
	c.execute(query, (id, recipe_id, chemical_id, g, ml, makes, note))
	con.commit()
	val=f"{g}g" if g != 'NULL' else f"{ml}ml"
	print(f"Added component {chemical} {val}")

def createRecipe (recipe) :
	id=uuid()
	query="INSERT OR IGNORE INTO recipes (recipe_id, name) VALUES (?, ?);"
	c.execute(query, (id, recipe,))
	con.commit()
	return id

def importRecipe (filePath) :
	name = path.basename(filePath).replace('.csv', '').replace('_', ' ')
	recipe_id = hasRecipe(name)

	if recipe_id != '' :
		print(f"Recipe {name} already exists")
		return

	recipe_id = createRecipe(name)

	with open(filePath, newline='') as csvfile:
		reader = csv.reader(csvfile, delimiter=',', quotechar='|')
		for row in reader:
			chemical=row[0]
			if chemical == 'chemical' :
				continue
			g=float(row[1]) if row[1] != '' else 'NULL'
			ml=float(row[2]) if row[2] != '' else 'NULL'
			makes=int(row[3])
			note=row[4]
			chemical_id=ensureChemical(chemical)
			createComponent(chemical, recipe_id, chemical_id, g, ml, makes, note)
	print(f"Imported {name}")

def displayCents (val) :
	return '${:,.2f}'.format(val / 100.0)

def displayCost (ml) :
	query = "SELECT recipe_id,UPPER(name) FROM recipes ORDER BY name ASC;"
	c.execute(query)
	rows = c.fetchall()
	for row in rows:
		recipe = row[1]
		print(f"{recipe}: {ml/1000} liters")
		query = """SELECT a.name, (c.grams * (s.price/s.grams)) / c.makes, (c.grams/c.makes) FROM components AS c 
			INNER JOIN supply AS s 
				ON c.chemical_id = s.chemical_id 
			INNER JOIN chemicals AS a 
				ON c.chemical_id = a.chemical_id
			WHERE c.recipe_id = ?;"""

		c.execute(query, (row[0],))
		components = c.fetchall()

		total = 0
		for component in components:
			name = component[0]
			price = component[1] * ml
			grams = component[2] * ml
			total += price
			print(f"{name} : [{grams}g] {displayCents(price)}")
		print("------")
		print(f"Total: {displayCents(total)}")
		print("------")

print('-------')
print('SUPPLY')
print('-------')

with open(SUPPLY, newline='') as csvfile:
	reader = csv.reader(csvfile, delimiter=',', quotechar='|')
	for row in reader:
		chemical=row[0]
		if chemical == 'chemical' :
			continue
		url=row[1]
		g=float(row[2]) if row[2] != '' else 'NULL'
		ml=float(row[3]) if row[3] != '' else 'NULL'
		price=int(row[4])
		chemical_id = ensureChemical(chemical)
		supply_id = ensureSupply(chemical_id, url, g, ml, price)
		displaySupply(supply_id, chemical)

print('-------')
print('RECIPES')
print('-------')

for recipe in os.listdir(RECIPES):
	if recipe.endswith('.csv') :
		filePath=f'{RECIPES}{recipe}'
		importRecipe(filePath)

print('----')
print('COST')
print('----')

displayCost(3785) #gallon