Let the garden keep what she was given, not only what she sought

Two halves of the same idea, both read out of work Petal already
records.

Planting: an accepted collocation is a learnable chunk, so it becomes a
phrase card. The scheduler didn't need to know — a three-word chunk
climbs the ladder exactly like a looked-up word. What needed care was
deciding what *isn't* a chunk (single words are word choice; a
six-word-plus "collocation" is a rewritten sentence, and sentences make
miserable flashcards), and that the example must be the *corrected*
sentence — the stored draft still holds the phrasing she just left
behind. Re-accepting the same chunk leaves the existing card alone
rather than resetting a schedule it has been climbing. The whole thing
is best-effort: accepting an edit must never fail because a flashcard
couldn't be made.

The growth journal: kept this month beside kept the month before, the
phrasing that stuck, the patterns that faded. The queries were the easy
part; the honesty is the feature. "Stuck" needs the phrase in a *second*
document, because one document is just the edit where she left it.
"Faded" says nothing at all unless she has been writing lately —
otherwise a month away from Petal comes back to her as progress, which
is the one way this could lie. And a suggestion had to start recording
when she *decided* it, not when the model proposed it, so 0012 adds
resolved_at and backfills the old rows to their created_at.

It lives as a second tab in the garden, and it feeds the kitten: after
an accept she now sometimes hears something true of her alone, once per
line, half the time, never waited for.

Claude-Session: https://claude.ai/code/session_016y6gyuHkQXPiEuW8RGQyua

internal/vocab/plant_test.go

@@ -0,0 +1,74 @@
+package vocab
+
+import (
+	"path/filepath"
+	"testing"
+
+	"gitea.parodia.dev/drwily/petal/internal/db"
+)
+
+func TestPhraseKey(t *testing.T) {
+	cases := []struct {
+		in, want string
+	}{
+		{"make a decision", "make a decision"},
+		{"Make A Decision", "make a decision"},        // shares one namespace with lookups
+		{"  make   a\ndecision  ", "make a decision"}, // the editor's whitespace
+		{"“make a decision.”", "make a decision"},     // punctuation from the sentence around it
+		{"can’t afford it", "can’t afford it"},        // inner marks are part of the chunk
+		{"decision", ""},      // word choice, not a chunk — lookup's job
+		{"", ""},              //
+		{"...", ""},           //
+		{"12 000", ""},        // digits aren't vocabulary
+		{"a b c d e f g", ""}, // a clause wearing a chunk's label
+		{"in one’s own good time again", "in one’s own good time again"}, // six words is still a chunk
+	}
+	for _, tc := range cases {
+		if got := PhraseKey(tc.in); got != tc.want {
+			t.Errorf("PhraseKey(%q) = %q, want %q", tc.in, got, tc.want)
+		}
+	}
+	// The length cap counts runes, not bytes — otherwise a Portuguese chunk well
+	// inside the limit would be dropped for being accented.
+	accented := "ãããããã ãããããã ãããããã ãããããã ãããããã" // 34 runes, 64 bytes
+	if got := PhraseKey(accented); got != accented {
+		t.Errorf("PhraseKey(%d runes / %d bytes) = %q, want it kept", len([]rune(accented)), len(accented), got)
+	}
+	long := "ãããããããããããã ãããããããããããã ãããããããããããã ãããããããããããã ãããããããããããã ãããããããããããã"
+	if got := PhraseKey(long); got != "" {
+		t.Errorf("PhraseKey(%d runes) = %q, want \"\"", len([]rune(long)), got)
+	}
+}
+
+func TestPlantCreatesOnceAndReportsIt(t *testing.T) {
+	database, err := db.Open(filepath.Join(t.TempDir(), "test.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	t.Cleanup(func() { database.Close() })
+
+	p := Phrase{Text: "make a decision", Meaning: "why", Example: "I had to make a decision."}
+	created, err := Plant(database, db.LocalUserID, p)
+	if err != nil || !created {
+		t.Fatalf("first plant: created=%v err=%v", created, err)
+	}
+	created, err = Plant(database, db.LocalUserID, p)
+	if err != nil || created {
+		t.Fatalf("second plant: created=%v err=%v, want false", created, err)
+	}
+
+	// A card that isn't plantable is a silent no-op, not an error: planting hangs
+	// off accepting an edit, and that accept must never fail for a flashcard.
+	created, err = Plant(database, db.LocalUserID, Phrase{Text: "decision"})
+	if err != nil || created {
+		t.Fatalf("unplantable: created=%v err=%v", created, err)
+	}
+
+	var n int
+	if err := database.QueryRow(`SELECT count(*) FROM vocab_words WHERE user_id = ?`, db.LocalUserID).Scan(&n); err != nil {
+		t.Fatalf("count: %v", err)
+	}
+	if n != 1 {
+		t.Fatalf("garden has %d cards, want 1", n)
+	}
+}