diff options
Diffstat (limited to 'vendor/go.mau.fi/util/jsontime/integer.go')
-rw-r--r-- | vendor/go.mau.fi/util/jsontime/integer.go | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/vendor/go.mau.fi/util/jsontime/integer.go b/vendor/go.mau.fi/util/jsontime/integer.go new file mode 100644 index 0000000..7d15d5d --- /dev/null +++ b/vendor/go.mau.fi/util/jsontime/integer.go @@ -0,0 +1,163 @@ +// Copyright (c) 2023 Tulir Asokan +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +package jsontime + +import ( + "database/sql" + "database/sql/driver" + "encoding/json" + "errors" + "fmt" + "time" +) + +var ErrNotInteger = errors.New("value is not an integer") + +func parseTime(data []byte, unixConv func(int64) time.Time, into *time.Time) error { + var val int64 + err := json.Unmarshal(data, &val) + if err != nil { + return err + } + if val == 0 { + *into = time.Time{} + } else { + *into = unixConv(val) + } + return nil +} + +func anyIntegerToTime(src any, unixConv func(int64) time.Time, into *time.Time) error { + switch v := src.(type) { + case int: + *into = unixConv(int64(v)) + case int8: + *into = unixConv(int64(v)) + case int16: + *into = unixConv(int64(v)) + case int32: + *into = unixConv(int64(v)) + case int64: + *into = unixConv(int64(v)) + default: + return fmt.Errorf("%w: %T", ErrNotInteger, src) + } + + return nil +} + +var _ sql.Scanner = &UnixMilli{} +var _ driver.Valuer = UnixMilli{} + +type UnixMilli struct { + time.Time +} + +func (um UnixMilli) MarshalJSON() ([]byte, error) { + if um.IsZero() { + return []byte{'0'}, nil + } + return json.Marshal(um.UnixMilli()) +} + +func (um *UnixMilli) UnmarshalJSON(data []byte) error { + return parseTime(data, time.UnixMilli, &um.Time) +} + +func (um UnixMilli) Value() (driver.Value, error) { + return um.UnixMilli(), nil +} + +func (um *UnixMilli) Scan(src any) error { + return anyIntegerToTime(src, time.UnixMilli, &um.Time) +} + +var _ sql.Scanner = &UnixMicro{} +var _ driver.Valuer = UnixMicro{} + +type UnixMicro struct { + time.Time +} + +func (um UnixMicro) MarshalJSON() ([]byte, error) { + if um.IsZero() { + return []byte{'0'}, nil + } + return json.Marshal(um.UnixMicro()) +} + +func (um *UnixMicro) UnmarshalJSON(data []byte) error { + return parseTime(data, time.UnixMicro, &um.Time) +} + +func (um UnixMicro) Value() (driver.Value, error) { + return um.UnixMicro(), nil +} + +func (um *UnixMicro) Scan(src any) error { + return anyIntegerToTime(src, time.UnixMicro, &um.Time) +} + +var _ sql.Scanner = &UnixNano{} +var _ driver.Valuer = UnixNano{} + +type UnixNano struct { + time.Time +} + +func (un UnixNano) MarshalJSON() ([]byte, error) { + if un.IsZero() { + return []byte{'0'}, nil + } + return json.Marshal(un.UnixNano()) +} + +func (un *UnixNano) UnmarshalJSON(data []byte) error { + return parseTime(data, func(i int64) time.Time { + return time.Unix(0, i) + }, &un.Time) +} + +func (un UnixNano) Value() (driver.Value, error) { + return un.UnixNano(), nil +} + +func (un *UnixNano) Scan(src any) error { + return anyIntegerToTime(src, func(i int64) time.Time { + return time.Unix(0, i) + }, &un.Time) +} + +type Unix struct { + time.Time +} + +func (u Unix) MarshalJSON() ([]byte, error) { + if u.IsZero() { + return []byte{'0'}, nil + } + return json.Marshal(u.Unix()) +} + +var _ sql.Scanner = &Unix{} +var _ driver.Valuer = Unix{} + +func (u *Unix) UnmarshalJSON(data []byte) error { + return parseTime(data, func(i int64) time.Time { + return time.Unix(i, 0) + }, &u.Time) +} + +func (u Unix) Value() (driver.Value, error) { + return u.Unix(), nil +} + +func (u *Unix) Scan(src any) error { + return anyIntegerToTime(src, func(i int64) time.Time { + return time.Unix(i, 0) + }, &u.Time) +} |