chain

type Block struct {
	Index         int64         `json:"index"`        // the index of current block
	TimeStamp     int64         `json:"timeStamp"`    // the creation timestamp
	PrevBlockHash string        `json:"prevHash"`     // the previous block hash
	Transactions  []Transaction `json:"transactions"` // transactions contained in the block
	Signatures    []Signature   `json:"signatures"`
}

type Blockchain struct {
	Chain        []Block         `json:"chain"`        // linear chain structure
	Transactions TransactionPool `json:"transactions"` // the transactions
	Nodes        PeerSet         `json:"nodes"`        // the participated nodes
	Committee    MemberSet       `json:"committee"`    // the committee members
}

type Global struct {
	GlobalModel [][]float64 `json:"roundModel"`
	Momentum    [][]float64 `json:"momentum"`
}

type LocalTransaction struct {
	ClientID    int           `json:"clientID"`
	PublicKey   rsa.PublicKey `json:"publicKey"`
	Round       int           `json:"round"`
	ModelUpdate [][]float64   `json:"modelUpdate"`
	Signature   []byte        `json:"signature"`
}

type Member struct {
	ID       int
	Address  string
	Pk       vrf.PublicKey
	VrfValue []byte
	VrfProof []byte
}

type MemberSet struct {
	Set     map[int]bool
	Members map[int]Member
}

type Peer struct {
	Address string
	Pk      vrf.PublicKey
}

type PeerSet struct {
	Set   map[int]bool
	Peers map[int]Peer
}

type Signature struct {
	Sig []byte
	Pk  ecdsa.PublicKey
}

type Transaction struct {
	Task           string             `json:"task"`
	Round          int                `json:"round"`
	GlobalModel    string             `json:"globalModel"`      //the IPFS address of the global model
	GlobalModelSig Signature          `json:"SenderSignauture"` //the signature of uploaded global
	Deltas         []LocalTransaction `json:"modelUpdates"`     //the deltas will be removed when the confirmed block generated
}

type TransactionPool struct {
	Transactions map[string]LocalTransaction
	// contains filtered or unexported fields
}