mirror of
https://github.com/LBRYFoundation/lbcd.git
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99 lines
1.8 KiB
Go
99 lines
1.8 KiB
Go
package change
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import (
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"github.com/btcsuite/btcd/wire"
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"github.com/mojura/enkodo"
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)
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type ChangeType int32
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const (
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AddClaim ChangeType = iota
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SpendClaim
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UpdateClaim
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AddSupport
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SpendSupport
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)
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type Change struct {
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Type ChangeType
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Height int32
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Name []byte `msg:"-"`
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ClaimID ClaimID
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OutPoint wire.OutPoint
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Amount int64
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ActiveHeight int32 // for normalization fork
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VisibleHeight int32
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SpentChildren map[string]bool
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}
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func NewChange(typ ChangeType) Change {
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return Change{Type: typ}
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}
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func (c Change) SetHeight(height int32) Change {
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c.Height = height
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return c
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}
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func (c Change) SetName(name []byte) Change {
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c.Name = name // need to clone it?
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return c
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}
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func (c Change) SetOutPoint(op *wire.OutPoint) Change {
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c.OutPoint = *op
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return c
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}
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func (c Change) SetAmount(amt int64) Change {
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c.Amount = amt
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return c
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}
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func (c *Change) MarshalEnkodo(enc *enkodo.Encoder) error {
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enc.Bytes(c.ClaimID[:])
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enc.Bytes(c.OutPoint.Hash[:])
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enc.Uint32(c.OutPoint.Index)
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enc.Int32(int32(c.Type))
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enc.Int32(c.Height)
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enc.Int32(c.ActiveHeight)
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enc.Int32(c.VisibleHeight)
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enc.Int64(c.Amount)
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if c.SpentChildren != nil {
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enc.Int32(int32(len(c.SpentChildren)))
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for key := range c.SpentChildren {
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enc.String(key)
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}
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} else {
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enc.Int32(0)
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}
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return nil
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}
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func (c *Change) UnmarshalEnkodo(dec *enkodo.Decoder) error {
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id := c.ClaimID[:]
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err := dec.Bytes(&id)
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op := c.OutPoint.Hash[:]
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err = dec.Bytes(&op)
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c.OutPoint.Index, err = dec.Uint32()
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t, err := dec.Int32()
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c.Type = ChangeType(t)
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c.Height, err = dec.Int32()
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c.ActiveHeight, err = dec.Int32()
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c.VisibleHeight, err = dec.Int32()
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c.Amount, err = dec.Int64()
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keys, err := dec.Int32()
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if keys > 0 {
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c.SpentChildren = map[string]bool{}
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}
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for keys > 0 {
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keys--
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key, _ := dec.String()
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c.SpentChildren[key] = true
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}
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return err
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}
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