package model

import "testing"

func TestFuzzyRecommendOffsetUsesFullMatchedInput(t *testing.T) {
	tests := []struct {
		name         string
		searchPrefix string
		searchInput  string
		want         int
	}{
		{
			name:         "zone fuzzy prefix",
			searchPrefix: "grid000",
			searchInput:  "z",
			want:         len([]rune("grid000.z")),
		},
		{
			name:         "level one fuzzy",
			searchPrefix: "",
			searchInput:  "g",
			want:         len([]rune("g")),
		},
		{
			name:         "measurement fuzzy preserves config token",
			searchPrefix: "grid.zone.station.nspath.comp.config",
			searchInput:  "m",
			want:         len([]rune("grid.zone.station.nspath.comp.config.m")),
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := fuzzyRecommendOffset(tt.searchPrefix, tt.searchInput)
			if got != tt.want {
				t.Fatalf("expected offset %d, got %d", tt.want, got)
			}
		})
	}
}