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fix: price estimate for all items, including manually-added ones

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- AI prompt: always return a best-guess price (never null/price_not_found)
  for unrecognised items returns generic package estimate with '~' prefix
- Cache key bumped to v3 to invalidate old null-returning cache entries
- JS: manually-added items (no smart match, no spec) default to qty=1/conf
  instead of qty=1/pz so _calcEstimatedTotal treats them as a single pack
- Price badge: shows '~€X.XX' prefix when source_note starts with '~'
  so user knows the price is a rough estimate
This commit is contained in:
dadaloop82
2026-05-07 17:38:05 +00:00
parent 3a9f0ccf79
commit 0de9a62058
2 changed files with 19 additions and 10 deletions
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api/index.php
+9 -7
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@@ -6488,7 +6488,7 @@ function _savePriceCache(array $data): void {
* Bump version suffix when AI prompt format changes to auto-invalidate old entries.
*/
function _priceKey(string $name, string $country): string {
return md5(mb_strtolower(trim($name)) . '|' . mb_strtolower(trim($country)) . '|v2');
return md5(mb_strtolower(trim($name)) . '|' . mb_strtolower(trim($country)) . '|v3');
}
/**
@@ -6505,20 +6505,22 @@ function _fetchPriceFromAI(string $name, string $country, string $currency, stri
$prompt = <<<PROMPT
You are a grocery price assistant. Estimate the typical retail price for "{$name}" in {$country}, currency {$currency}.
Return the price for the MOST NATURAL RETAIL UNIT — that is, the smallest standard unit a shopper would actually buy:
- Products in standard packages (pasta, flour, frozen food, yogurt, canned goods): price per typical package (e.g. "pacco 500g", "barattolo 400g", "confezione")
- Products sold by the piece or bunch (fresh herbs, eggs, individual fruits/vegetables, single portions): price per piece/bunch (e.g. "mazzo", "uovo", "pz")
Return the price for the MOST NATURAL RETAIL UNIT — the smallest standard unit a shopper would actually buy:
- Standard packages (pasta, flour, frozen food, yogurt, canned goods, biscuits): price per typical package (e.g. "pacco 500g", "barattolo 400g", "confezione")
- Sold by piece or bunch (fresh herbs, eggs, individual fruit/vegetables, single portions): price per piece/bunch (e.g. "mazzo", "uovo", "pz")
- Liquids in bottles or cartons: price per typical container (e.g. "bottiglia 1L", "brick 1L")
- Deli counter items sold loose by weight (prosciutto, salami, fresh fish): price per kg
- Deli items sold loose by weight: price per kg
Rules:
1. Use mid-range supermarket prices (not premium, not discount).
2. Round to 2 decimal places.
3. NEVER return per-kg for items normally sold in packages or by the piece.
4. Respond ONLY with valid JSON — no markdown, no explanation:
4. ALWAYS return your best estimate — even for generic or unusual items. Use a typical grocery item if uncertain.
5. Respond ONLY with valid JSON — no markdown, no explanation:
{"price_per_unit": 1.50, "unit_label": "mazzo", "currency": "{$currency}", "source_note": "Basilico fresco ~€1.50/mazzo in {$country}"}
If truly unknown, return: {"price_per_unit": null, "unit_label": null, "currency": "{$currency}", "source_note": "prezzo non disponibile"}
If you are genuinely unsure, return a rough estimate for 1 typical package with a "~" in source_note:
{"price_per_unit": 2.00, "unit_label": "confezione", "currency": "{$currency}", "source_note": "~ stima generica confezione in {$country}"}
PROMPT;
$payload = ['contents' => [['parts' => [['text' => $prompt]]]]];