package model

import (
	"testing"

	"github.com/stretchr/testify/require"
)

func TestJSONValueScanCopiesByteInputAndSupportsStringAndNil(t *testing.T) {
	input := []byte(`{"items":["a"]}`)
	var value JSONValue
	require.NoError(t, value.Scan(input))
	input[2] = 'X'
	require.Equal(t, `{"items":["a"]}`, string(value))

	require.NoError(t, value.Scan(`{"items":["b"]}`))
	require.Equal(t, `{"items":["b"]}`, string(value))

	require.NoError(t, value.Scan(nil))
	require.Nil(t, value)
}

func TestJSONValueDatabaseAndJSONMarshallingPreservesRawPayload(t *testing.T) {
	value := JSONValue(`{"models":["gpt-5"]}`)
	databaseValue, err := value.Value()
	require.NoError(t, err)
	require.Equal(t, []byte(`{"models":["gpt-5"]}`), databaseValue)

	encoded, err := value.MarshalJSON()
	require.NoError(t, err)
	require.Equal(t, []byte(`{"models":["gpt-5"]}`), encoded)

	var decoded JSONValue
	require.NoError(t, decoded.UnmarshalJSON([]byte(`["a","b"]`)))
	require.Equal(t, `["a","b"]`, string(decoded))

	var nilValue JSONValue
	encoded, err = nilValue.MarshalJSON()
	require.NoError(t, err)
	require.Equal(t, []byte("null"), encoded)
}