vjrj
6809dc6143
Lower the bulk-digitization cliff with two more routes on top of the already-landed CSV import and "save and add another": - Photo-first drafts (capture now, catalogue later): burst-capture photos (camera or multi-gallery) into unnamed draft varieties, shown in a "to catalogue" tray, hidden from the main list until named. Adds Variety.isDraft (schema), addDraftVariety/watchDrafts/nameDraft, the triage sheet and the inventory banner. - On-device OCR label suggestion (Tesseract, offline, no Google): a "Suggest name from photo" button in the naming dialog behind a LabelTextExtractor interface (Tesseract on Android/iOS, no-op elsewhere). Reads the largest print via hOCR bounding boxes, drops boilerplate/low-confidence noise, preprocesses (grayscale, contrast, upscale) and sweeps rotations (0-315 deg) so tilted packets still read. Bundles tessdata_fast eng+spa; validated on-device against real packets. The photo is written to a temp file deleted immediately in a finally block (the plugin needs a path) - a bounded, documented exception to no-plaintext-at-rest. This commit also carries the co-developed schema evolution v5 to v8 that shares these files (organic flag, species viability years, crop calendar, lot provenance/abundance/preservation format, condition checks) plus their exports/migrations and i18n. Tests: CSV/draft/OCR unit + widget + migration green in isolation. Note: the full widget suite currently hangs (>10 min) - under investigation.
41 lines
1.7 KiB
Dart
41 lines
1.7 KiB
Dart
/// Viability status of a seed lot, derived purely from its age versus the
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/// species' typical seed longevity (bundled reference data). Turns passive
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/// storage into active stewardship: it surfaces which lots to sow or regenerate
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/// before they lapse, instead of just accumulating them.
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enum SeedViability {
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/// Comfortably within the species' typical viability window.
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fresh,
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/// In the final year of the window — sow or reproduce this season.
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expiringSoon,
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/// Past the typical viability window — germination is likely dropping fast.
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expired,
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/// Not enough data to judge (no harvest year, or no reference figure).
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unknown,
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}
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/// Computes the viability status of a seed lot harvested in [harvestYear] for a
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/// species whose typical longevity is [viabilityYears], as of [currentYear].
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///
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/// A conservative, age-based signal: the bundled figure is a single number, not
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/// a decay curve, so this only distinguishes "fine / use soon / past it".
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/// [expiringSoon] flags the last year of the window so the grower can prioritise
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/// what to reproduce before it lapses. Any actual [GerminationTest] a grower
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/// records remains the ground truth and is shown alongside this estimate.
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SeedViability seedViability({
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required int? harvestYear,
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required int? viabilityYears,
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required int currentYear,
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}) {
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if (harvestYear == null || viabilityYears == null || viabilityYears <= 0) {
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return SeedViability.unknown;
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}
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final age = currentYear - harvestYear;
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// A harvest stamped in the future is treated as fresh, not expired.
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if (age < 0) return SeedViability.fresh;
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if (age >= viabilityYears) return SeedViability.expired;
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if (age >= viabilityYears - 1) return SeedViability.expiringSoon;
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return SeedViability.fresh;
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}
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