package chain

import (
	"context"
	"testing"
)

func TestSubjectsMatchAsTheBusFiltersThem(t *testing.T) {
	for _, c := range []struct {
		pattern, key string
		want         bool
	}{
		{"alpha.>", "alpha.build-1", true}, {"alpha.>", "alpha.commit.c1", true}, {"alpha.>", "beta.build-1", false},
		{"alpha.>", "alpha", false}, {"*.newest", "alpha.newest", true}, {"*.newest", "alpha.commit.newest", false},
		{"*", "build-1", true}, {"*", "alpha.build-1", false}, {">", "a.b.c", true}, {"req.*", "req.build-1", true},
	} {
		if got := SubjectMatches(c.pattern, c.key); got != c.want {
			t.Errorf("SubjectMatches(%q, %q) = %v", c.pattern, c.key, got)
		}
	}
}

func TestOnlyTheKeysOfAFilterAreWatched(t *testing.T) {
	ctx := context.Background()
	c := InMemory(nil)
	for _, k := range []string{"alpha.build.b1", "alpha.build.b2", "beta.build.b3", "alpha.newest"} {
		if _, err := c.Builds.CreateRaw(ctx, k, []byte(`{"id":"x"}`)); err != nil {
			t.Fatal(err)
		}
	}
	got, err := c.Builds.FilteredRaw(ctx, ModuleFilter("alpha"))
	if err != nil || len(got) != 2 {
		t.Fatalf("alpha.> gave %v: %v", got, err)
	}
	if !IsRecordKey("alpha.build.b1") || IsRecordKey("alpha.newest") || IsRecordKey("alpha.commit.c") || IsRecordKey("manifest.build.x") || IsRecordKey("req.b1") || IsRecordKey("id.b1") {
		t.Error("IsRecordKey tells a record from a pointer wrongly")
	}
}