Various issues in unit unificiation about heissepreise HOT 8 CLOSED

Spar units are kind of fucked for some products. Should be 250ml, is 200ml.

from heissepreise.

See #49 for fixing the spar units.

Concerning the hard-coded 100g base price: Does it make sense to switch from price/100g to price/kg below a certain price (like 50Cent/100g)?
Alternative: let the user select the base unit

from heissepreise.

I think the latest changes are good enough.

from heissepreise.

mpreis weighted items are still wonky. E.g.

https://heisse-preise.io/?q=!isWeighted%3Dtrue%20and%20%60store%60%3D%22mpreis%22

Example:

quantity is 900g, but the price is the kilo price.
https://www.mpreis.at/shop/p/zuckerhut-salat-ca-1-stueck-541201

Haven't dug into mpreis at all yet.

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Bunch of Spar items are super wonky on their end. Unit then defaults to 1 stk, while they are weighted.

from heissepreise.

Spar also has "supposed" weighted items:
https://www.interspar.at/shop/lebensmittel/spar-naturpur-bio-apfel-gala-per-tasse/p/6725006

We give the per kg price, while they are only sold in increments of 900g. Not sure how to handle this case.

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Concerning MPREIS Zuckerhut, the raw data looks like this (which is inconsistent in my opinion):

        "originalAmount": 1.791,
        "effectiveAmount": 1.791,
        "measurementUnit": {
          "quantity": 1,
          "unitCode": "GRM"
        },
        "basePrice": {
          "originalAmount": 1.99,
          "effectiveAmount": 1.99,
          "measurementUnit": {
            "quantity": 1,
            "unitCode": "KGM"
          }
        },
        "presentationPrice": {
          "originalAmount": 1.99,
          "effectiveAmount": 1.99,
          "measurementUnit": {
            "quantity": 900,
            "unitCode": "GRM"
          }
        },

from heissepreise.

Yeah, they are loosey goosey with the unit/quantity/price data. Ah well, another day :)

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