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marketparser.py
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marketparser.py
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import peewee
import json
import re
db = peewee.SqliteDatabase('market.db')
class BaseModel(peewee.Model):
class Meta:
database = db
class Item(BaseModel):
name = peewee.CharField(unique=True, max_length=64)
class Sale(BaseModel):
item_id = peewee.ForeignKeyField(Item)
amount = peewee.SmallIntegerField()
cost = peewee.IntegerField()
time = peewee.DateTimeField()
class Equip(BaseModel):
item_id = peewee.ForeignKeyField(Item)
sale_id = peewee.ForeignKeyField(Sale)
stats = peewee.CharField(max_length=128)
slots = peewee.CharField(max_length=16)
db.connect()
db.create_tables([Item, Sale, Equip])
def parseEquipContents(contents):
slotRegex1 = re.compile(r'\((.* slots)\)')
slotRegex2 = re.compile(r'\((\+\d+\/\d+)\)')
statsRegex = re.compile(r'\(((?:[A-Z.]+ \+\d+ )+)\)')
s = []
skip = False
# split all matching (parenthises) pairs
for e in contents.split('('):
if ')' in e:
e = '(' + e
s.append(e)
# cleanup items
s = [e.strip() for e in s]
slots = "Clean"
stats = "Clean"
# find the stats and slots sections
for e in s[:]:
m = slotRegex1.match(e)
if m:
# slots are bla
slots = m.group(1)
s.remove(m.group(0))
continue
m = slotRegex2.match(e)
if m:
slots = m.group(1)
s.remove(m.group(0))
continue
m = statsRegex.match(e)
if m:
stats = m.group(1)
s.remove(m.group(0))
continue
# merge everything else into the name
# equips are not stackable, so amount would not be merged into the name
name = ' '.join(s[:])
return name, stats, slots
def loadDatabase(s):
# ignoring listings for now
if s['type'] != 'sold':
return
style1 = re.compile(r'^\(Channel +\d +FM +\d\) \*\*I just sold a\(n\) (.*) to .* for (.*) mesos!\*\*$')
style2 = re.compile(r'^\(Channel +\d +FM +\d\) \*\*I just sold a (.*) to .* for (.*) mesos!\*\*$')
style3 = re.compile(r'^\(Channel +\d +FM +\d\) \*\*I just sold a (.*) for (.*) mesos!\*\*$')
regexList = [style1, style2, style3]
for style in regexList:
matched = style.match(s['content'])
# found nothing --> try another
if matched:
break
if matched is None:
with open("problem.log", "a") as err:
err.write("problem here (strange input format): %s" % s['content'])
print("problem here (strange input format) check problem logs")
print(s)
return
# split item and cost
item = matched.group(1)
cost = matched.group(2).replace(',', '')
amount = 1
time = s['created_at']
name = None
stats = None
slots = None
# code to item bunches
bunchRegex = re.compile(r'(.*) \((\d+)\)$')
m = bunchRegex.match(item)
if m:
# edge case for icarus cape
if m.group(1) == 'Icarus Cape':
pass
else:
# item was sold in a bunch
amount = m.group(2)
item = m.group(1)
name = item
# code to match equips
# for now ignore equips
# (since they fluctuate based on price and slots)
equipRegex = re.compile(r'.*\(.*\)')
if equipRegex.match(item):
# parse equip
name, stats, slots = parseEquipContents(item)
# code to match scrolls
# old style scrolls are useless (since they miss the %)
scrollRegex = re.compile('^Scroll for .*[^%]$')
if scrollRegex.match(item):
# item is old style scroll
return
# load sale into db
# WARNING: Race conditions may happen when multithreaded
obj, created = Item.get_or_create(name=name)
#print("found " + name)
# WARNING: Race conditions may happen when multithreaded
sale, created = Sale.get_or_create(item_id=obj, amount=amount, cost=cost, time=time)
if not created:
# seems like the sale was already created. quit
print("Already created")
print(s)
return
if stats is not None and slots is not None:
Equip.create(item_id=obj, sale_id=sale, stats=stats, slots=slots)
# parse entire market_history from this
if __name__ == '__main__':
with open('market_history.log', 'r') as f:
for i in f:
loadDatabase(json.loads(i))