/
choo.go
146 lines (120 loc) · 3.76 KB
/
choo.go
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package main
import (
"github.com/PiMaker/BlockTrain/blocktrain"
"github.com/PiMaker/BlockTrain/ramstore"
"fmt"
"github.com/chzyer/readline"
"strconv"
"strings"
"io"
)
func main() {
fmt.Println("\033[31mGe\033[32mne\033[33msi\033[34ms...\033[0m")
chain := blocktrain.Genesis(ramstore.NewRAMStore())
blocktrain.Log = true
fmt.Println("Blocktrain ready, please enter a command:")
completer := readline.NewPrefixCompleter(
readline.PcItem("print",
readline.PcItem("chain"),
readline.PcItem("latest"),
readline.PcItem("buffer"),
),
readline.PcItem("commit"),
readline.PcItem("retrieve"),
readline.PcItem("verify"),
readline.PcItem("exit"),
readline.PcItem("help"),
)
l, _ := readline.NewEx(&readline.Config{
Prompt: "\033[34mBT>\033[0m ",
AutoComplete: completer,
InterruptPrompt: "^C",
EOFPrompt: "exit",
})
for {
line, err := l.Readline()
if err == readline.ErrInterrupt {
if len(line) == 0 {
break
} else {
continue
}
} else if err == io.EOF {
break
}
line = strings.TrimSpace(line)
switch {
case strings.HasPrefix(line, "print "):
fmt.Println()
switch line[6:] {
case "chain":
chain.PrintChain()
case "latest":
if chain.LatestBlock != nil {
chain.LatestBlock.PrintBlock()
} else {
fmt.Println("No blocks yet")
}
case "buffer":
fmt.Println("In Buffer: " + strconv.Itoa(len(chain.Buffer)) + "/" + strconv.Itoa(blocktrain.BufferSize))
for i, b := range chain.Buffer {
fmt.Println(strconv.Itoa(i) + ": " + b.TxID)
}
default:
fmt.Println("Cant't print: ", line[6:])
}
fmt.Println()
case line == "print":
fmt.Println("Usage: print (chain|latest|buffer)")
fmt.Println()
case strings.HasPrefix(line, "help"):
fmt.Println(completer.Tree(" "))
case strings.HasPrefix(line, "exit"):
goto exit
case strings.HasPrefix(line, "commit "):
data := []byte(line[7:])
chain.Commit(data)
fmt.Println()
case strings.HasPrefix(line, "retrieve "):
data := chain.Retrieve(line[9:])
fmt.Println(string(data))
status := chain.Verify(line[9:], data)
fmt.Println("Status: " + colorStatus(status))
fmt.Println()
case line == "verify":
fmt.Println("Usage: verify <txID> <d a t a>")
fmt.Println()
continue
case strings.HasPrefix(line, "verify "):
spaceIndex := strings.Index(line[7:], " ")
if spaceIndex == -1 {
fmt.Println("Usage: verify <txID> <d a t a>")
continue
}
txID := strings.TrimSpace(line[7:7+spaceIndex])
data := line[7+spaceIndex+1:]
status := chain.Verify(txID, []byte(data))
fmt.Println("Status: " + colorStatus(status))
fmt.Println()
}
}
exit:
fmt.Println("The BlockTrain is leaving the station...")
}
func colorStatus(status blocktrain.VerificationStatus) string {
prefix := ""
if status == blocktrain.Verified {
prefix = "\033[32m"
}
if status == blocktrain.Invalid || status == blocktrain.InBufferInvalid {
prefix = "\033[31m"
}
if status == blocktrain.InBuffer || status == blocktrain.UnknownTxID {
prefix = "\033[34m"
}
postfix := ""
if prefix != "" {
postfix = "\033[0m"
}
return prefix + blocktrain.StatusToString(status) + postfix
}