feat: migrate to golang

internal/model/time_test.go

@@ -0,0 +1,91 @@
+package model
+
+import (
+	"testing"
+	"time"
+
+	"gopkg.in/yaml.v3"
+)
+
+func TestTime_UnmarshalPythonISOFormat(t *testing.T) {
+	// Exact reproduction of the reported bug: a subscriptions.yaml written
+	// by the original Python implementation (datetime.now().isoformat(),
+	// no timezone) failed to parse under Go's strict RFC3339 decoding.
+	data := []byte(`last_refresh: 2026-03-19T18:21:47.740090
+`)
+	var out struct {
+		LastRefresh *Time `yaml:"last_refresh"`
+	}
+	if err := yaml.Unmarshal(data, &out); err != nil {
+		t.Fatalf("Unmarshal() error = %v", err)
+	}
+	if out.LastRefresh == nil {
+		t.Fatal("expected non-nil LastRefresh")
+	}
+	want := time.Date(2026, 3, 19, 18, 21, 47, 740090000, time.UTC)
+	if !out.LastRefresh.Time.Equal(want) {
+		t.Fatalf("got %v, want %v", out.LastRefresh.Time, want)
+	}
+}
+
+func TestTime_UnmarshalPythonISOFormatNoMicroseconds(t *testing.T) {
+	data := []byte(`last_refresh: 2026-03-19T18:21:47
+`)
+	var out struct {
+		LastRefresh *Time `yaml:"last_refresh"`
+	}
+	if err := yaml.Unmarshal(data, &out); err != nil {
+		t.Fatalf("Unmarshal() error = %v", err)
+	}
+	want := time.Date(2026, 3, 19, 18, 21, 47, 0, time.UTC)
+	if !out.LastRefresh.Time.Equal(want) {
+		t.Fatalf("got %v, want %v", out.LastRefresh.Time, want)
+	}
+}
+
+func TestTime_UnmarshalRFC3339(t *testing.T) {
+	// What this Go implementation itself writes.
+	data := []byte(`last_refresh: 2026-03-19T18:21:47.74009+08:00
+`)
+	var out struct {
+		LastRefresh *Time `yaml:"last_refresh"`
+	}
+	if err := yaml.Unmarshal(data, &out); err != nil {
+		t.Fatalf("Unmarshal() error = %v", err)
+	}
+	if out.LastRefresh.Time.IsZero() {
+		t.Fatal("expected non-zero time")
+	}
+}
+
+func TestTime_RoundTrip(t *testing.T) {
+	original := Time{Time: time.Date(2026, 3, 19, 18, 21, 47, 740090000, time.UTC)}
+	out, err := yaml.Marshal(map[string]interface{}{"last_refresh": original})
+	if err != nil {
+		t.Fatalf("Marshal() error = %v", err)
+	}
+
+	var roundTripped struct {
+		LastRefresh Time `yaml:"last_refresh"`
+	}
+	if err := yaml.Unmarshal(out, &roundTripped); err != nil {
+		t.Fatalf("Unmarshal() error = %v", err)
+	}
+	if !roundTripped.LastRefresh.Time.Equal(original.Time) {
+		t.Fatalf("round trip mismatch: got %v, want %v", roundTripped.LastRefresh.Time, original.Time)
+	}
+}
+
+func TestTime_UnmarshalEmpty(t *testing.T) {
+	data := []byte(`last_refresh: ""
+`)
+	var out struct {
+		LastRefresh Time `yaml:"last_refresh"`
+	}
+	if err := yaml.Unmarshal(data, &out); err != nil {
+		t.Fatalf("Unmarshal() error = %v", err)
+	}
+	if !out.LastRefresh.Time.IsZero() {
+		t.Fatalf("expected zero time, got %v", out.LastRefresh.Time)
+	}
+}