package classes

import (
	"testing"

	"git.golem15.com/golem15/summercms/modules/compass"
)

// TestReadRelatedSettings pins the related-posts config: the category mode
// and 3 by default; "scored" in any case turns scoring on; the count
// clamped to 3..6, 0 or a non-number falling back to 3. The scoring and
// its ties by the newest post are TestJournalAPIMatrix's on the database.
func TestReadRelatedSettings(t *testing.T) {
	if s := ReadRelatedSettings(nil); s.Mode != RelatedModeCategory || s.Count != 3 || s.Scored() {
		t.Fatalf("nil config = %+v", s)
	}
	for _, tc := range []struct {
		mode  string
		count any
		want  RelatedSettings
	}{
		{"", nil, RelatedSettings{RelatedModeCategory, 3}},
		{" Scored ", 5, RelatedSettings{RelatedModeScored, 5}},
		{"scored", 1, RelatedSettings{RelatedModeScored, 3}},
		{"scored", 99, RelatedSettings{RelatedModeScored, 6}},
		{"category", 4, RelatedSettings{RelatedModeCategory, 4}},
		{"tags", 0, RelatedSettings{RelatedModeCategory, 3}},
		{"scored", "many", RelatedSettings{RelatedModeScored, 3}},
	} {
		cfg, err := compass.Open(compass.Options{Dir: t.TempDir()})
		if err != nil {
			t.Fatal(err)
		}
		if tc.mode != "" {
			_ = cfg.Set(RelatedModeKey, tc.mode)
		}
		if tc.count != nil {
			_ = cfg.Set(RelatedCountKey, tc.count)
		}
		if got := ReadRelatedSettings(cfg); got != tc.want {
			t.Errorf("mode %q count %v = %+v, want %+v", tc.mode, tc.count, got, tc.want)
		}
	}
	if relatedTagPoints != 2 || relatedCategoryPoints != 1 {
		t.Fatal("a shared tag is 2 points, a shared category 1")
	}
}