ussd/internal/utils/db.go

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package utils
import (
"context"
"encoding/binary"
"git.defalsify.org/vise.git/db"
)
type DataTyp uint16
const (
DATA_ACCOUNT DataTyp = iota
DATA_ACCOUNT_CREATED
DATA_TRACKING_ID
DATA_PUBLIC_KEY
DATA_CUSTODIAL_ID
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DATA_ACCOUNT_PIN
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DATA_ACCOUNT_STATUS
DATA_FIRST_NAME
DATA_FAMILY_NAME
DATA_YOB
DATA_LOCATION
DATA_GENDER
DATA_OFFERINGS
DATA_RECIPIENT
DATA_AMOUNT
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)
func typToBytes(typ DataTyp) []byte {
var b [2]byte
binary.BigEndian.PutUint16(b[:], uint16(typ))
return b[:]
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}
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func PackKey(typ DataTyp, data []byte) []byte {
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v := typToBytes(typ)
return append(v, data...)
}
func ReadEntry(ctx context.Context, store db.Db, sessionId string, typ DataTyp) ([]byte, error) {
store.SetPrefix(db.DATATYPE_USERDATA)
store.SetSession(sessionId)
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k := PackKey(typ, []byte(sessionId))
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b, err := store.Get(ctx, k)
if err != nil {
return nil, err
}
return b, nil
}
func WriteEntry(ctx context.Context, store db.Db, sessionId string, typ DataTyp, value []byte) error {
store.SetPrefix(db.DATATYPE_USERDATA)
store.SetSession(sessionId)
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k := PackKey(typ, []byte(sessionId))
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return store.Put(ctx, k, value)
}