package tests

import (
	"encoding/json"
	"kontor-api-gin/internal/helpers"
	"testing"
)

func TestMultiFormatTimeUnmarshal(t *testing.T) {
	tests := []struct {
		name    string
		input   string
		wantErr bool
		want    string // Expected time string for comparison
	}{
		{
			name:    "Date Only",
			input:   `"2005-04-01"`,
			wantErr: false,
			want:    "2005-04-01 00:00:00 +0000 UTC",
		},
		{
			name:    "KontorTime Format",
			input:   `"2026-04-30T13:54:26.334Z"`,
			wantErr: false,
			want:    "2026-04-30 13:54:26.334 +0000 UTC",
		},
		{
			name:    "Null Value",
			input:   `null`,
			wantErr: false,
			want:    "", // Zero time
		},
		{
			name:    "Invalid Format",
			input:   `"not-a-date"`,
			wantErr: true,
			want:    "",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			var m helpers.KontorTime
			err := json.Unmarshal([]byte(tt.input), &m)
			if (err != nil) != tt.wantErr {
				t.Errorf("UnmarshalJSON() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if !tt.wantErr && !m.Time.IsZero() && m.Time.String() != tt.want {
				t.Errorf("UnmarshalJSON() = %v, want %v", m.Time.String(), tt.want)
			}
		})
	}
}