misc #4
|
@ -14,9 +14,6 @@
|
|||
const sqlite = await initWasm(() => wasmUrl);
|
||||
db = await sqlite.open('todo.db');
|
||||
|
||||
await db.exec(`
|
||||
DROP TABLE todos;
|
||||
`);
|
||||
await db.exec(`
|
||||
CREATE TABLE IF NOT EXISTS todos (
|
||||
id BLOB PRIMARY KEY NOT NULL,
|
||||
|
@ -54,9 +51,9 @@
|
|||
function sendChangesToServer(changes) {
|
||||
const formattedChanges = changes.map(change => ({
|
||||
TableName: change[0],
|
||||
PK: Array.isArray(change[1]) ? btoa(change[1]) : btoa(change[1]),
|
||||
PK: Array.isArray(change[1]) ? btoa(String.fromCharCode.apply(null, change[1])) : btoa(change[1]),
|
||||
ColumnName: change[2],
|
||||
Value: Array.isArray(change[3]) ? btoa(String.fromCharCode.apply(null, change[3])) : btoa(change[3]),
|
||||
Value: Array.isArray(change[3]) ? btoa(String.fromCharCode.apply(null, change[3])) : change[3],
|
||||
ColVersion: Number(change[4]),
|
||||
DBVersion: Number(change[5]),
|
||||
SiteID: Array.isArray(change[6]) ? btoa(new TextDecoder('utf8').decode(change[6])) : btoa(change[6]),
|
||||
|
|
109
main.go
109
main.go
|
@ -48,8 +48,8 @@ func initialModel() model {
|
|||
|
||||
conn, _, err := websocket.DefaultDialer.Dial("ws://localhost:8080/sync", nil)
|
||||
if err != nil {
|
||||
log.Println("Error connecting to WebSocket:", err)
|
||||
panic(err)
|
||||
log.Println("Error connecting to WebSocket:", err)
|
||||
panic(err)
|
||||
}
|
||||
|
||||
m := model{
|
||||
|
@ -65,18 +65,17 @@ func initialModel() model {
|
|||
}
|
||||
|
||||
type CRSQLChange struct {
|
||||
TableName string
|
||||
PK string
|
||||
ColumnName string
|
||||
Value string
|
||||
ColVersion int64
|
||||
DBVersion int64
|
||||
SiteID string
|
||||
CL int64
|
||||
Seq int64
|
||||
TableName string
|
||||
PK string
|
||||
ColumnName string
|
||||
Value string
|
||||
ColVersion int64
|
||||
DBVersion int64
|
||||
SiteID string
|
||||
CL int64
|
||||
Seq int64
|
||||
}
|
||||
|
||||
|
||||
func (m *model) addTodo(todo string) {
|
||||
id, err := uuid.NewV7()
|
||||
if err != nil {
|
||||
|
@ -90,59 +89,57 @@ func (m *model) addTodo(todo string) {
|
|||
panic(err)
|
||||
}
|
||||
|
||||
rows, err := m.db.Query("SELECT * FROM crsql_changes")
|
||||
if err != nil {
|
||||
log.Println("Error querying crsql_changes:", err)
|
||||
return
|
||||
}
|
||||
defer rows.Close()
|
||||
rows, err := m.db.Query("SELECT * FROM crsql_changes")
|
||||
if err != nil {
|
||||
log.Println("Error querying crsql_changes:", err)
|
||||
return
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var changes []CRSQLChange
|
||||
for rows.Next() {
|
||||
var change CRSQLChange
|
||||
var pkRaw []byte
|
||||
var valueRaw []byte
|
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var siteIDRaw []byte
|
||||
err := rows.Scan(&change.TableName, &pkRaw, &change.ColumnName, &valueRaw,
|
||||
&change.ColVersion, &change.DBVersion, &siteIDRaw, &change.CL, &change.Seq)
|
||||
var changes []CRSQLChange
|
||||
for rows.Next() {
|
||||
var change CRSQLChange
|
||||
var pkRaw []byte
|
||||
var valueRaw []byte
|
||||
var siteIDRaw []byte
|
||||
err := rows.Scan(&change.TableName, &pkRaw, &change.ColumnName, &valueRaw,
|
||||
&change.ColVersion, &change.DBVersion, &siteIDRaw, &change.CL, &change.Seq)
|
||||
|
||||
if err != nil {
|
||||
log.Println("Error scanning change:", err)
|
||||
return
|
||||
}
|
||||
change.PK = base64.StdEncoding.EncodeToString(pkRaw)
|
||||
change.Value = base64.StdEncoding.EncodeToString(valueRaw)
|
||||
change.SiteID = base64.StdEncoding.EncodeToString(siteIDRaw)
|
||||
if err != nil {
|
||||
log.Println("Error scanning change:", err)
|
||||
return
|
||||
}
|
||||
change.PK = base64.StdEncoding.EncodeToString(pkRaw)
|
||||
change.Value = base64.StdEncoding.EncodeToString(valueRaw)
|
||||
change.SiteID = base64.StdEncoding.EncodeToString(siteIDRaw)
|
||||
|
||||
changes = append(changes, change)
|
||||
fmt.Println(change)
|
||||
}
|
||||
|
||||
changes = append(changes, change)
|
||||
fmt.Println(change)
|
||||
}
|
||||
|
||||
if len(changes) > 0 {
|
||||
m.sendToWebSocket(changes)
|
||||
}
|
||||
if len(changes) > 0 {
|
||||
m.sendToWebSocket(changes)
|
||||
}
|
||||
|
||||
m.loadTodos()
|
||||
}
|
||||
|
||||
func (m *model) sendToWebSocket(changes []CRSQLChange) {
|
||||
message := struct {
|
||||
Type string `json:"type"`
|
||||
Data []CRSQLChange `json:"data"`
|
||||
}{
|
||||
Type: "changes",
|
||||
Data: changes,
|
||||
}
|
||||
message := struct {
|
||||
Type string `json:"type"`
|
||||
Data []CRSQLChange `json:"data"`
|
||||
}{
|
||||
Type: "changes",
|
||||
Data: changes,
|
||||
}
|
||||
|
||||
err := m.conn.WriteJSON(message)
|
||||
if err != nil {
|
||||
log.Println("Error sending changes to WebSocket:", err)
|
||||
panic(err)
|
||||
}
|
||||
err := m.conn.WriteJSON(message)
|
||||
if err != nil {
|
||||
log.Println("Error sending changes to WebSocket:", err)
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
func (m *model) loadTodos() {
|
||||
rows, err := m.db.Query("SELECT content FROM todos")
|
||||
if err != nil {
|
||||
|
@ -199,9 +196,9 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
|
|||
}
|
||||
|
||||
func (m model) quit() tea.Cmd {
|
||||
m.db.Close()
|
||||
m.conn.Close()
|
||||
return tea.Quit
|
||||
m.db.Close()
|
||||
m.conn.Close()
|
||||
return tea.Quit
|
||||
}
|
||||
|
||||
func (m model) View() string {
|
||||
|
|
277
server/main.go
277
server/main.go
|
@ -17,195 +17,184 @@ import (
|
|||
)
|
||||
|
||||
var upgrader = websocket.Upgrader{
|
||||
CheckOrigin: func(r *http.Request) bool {
|
||||
return true
|
||||
},
|
||||
CheckOrigin: func(r *http.Request) bool {
|
||||
return true
|
||||
},
|
||||
}
|
||||
|
||||
var db *sql.DB
|
||||
var clients = make(map[*websocket.Conn]bool)
|
||||
|
||||
func handleWebSocket(w http.ResponseWriter, r *http.Request) {
|
||||
conn, err := upgrader.Upgrade(w, r, nil)
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
return
|
||||
}
|
||||
defer conn.Close()
|
||||
conn, err := upgrader.Upgrade(w, r, nil)
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
return
|
||||
}
|
||||
defer conn.Close()
|
||||
|
||||
for {
|
||||
_, message, err := conn.ReadMessage()
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
return
|
||||
}
|
||||
for {
|
||||
_, message, err := conn.ReadMessage()
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
return
|
||||
}
|
||||
|
||||
var msg struct {
|
||||
Type string `json:"type"`
|
||||
Data []interface{} `json:"data"`
|
||||
}
|
||||
if err := json.Unmarshal(message, &msg); err != nil {
|
||||
log.Println("Error unmarshaling message:", err)
|
||||
continue
|
||||
}
|
||||
var msg struct {
|
||||
Type string `json:"type"`
|
||||
Data []interface{} `json:"data"`
|
||||
}
|
||||
if err := json.Unmarshal(message, &msg); err != nil {
|
||||
log.Println("Error unmarshaling message:", err)
|
||||
continue
|
||||
}
|
||||
|
||||
if msg.Type == "changes" {
|
||||
fmt.Println("We're applying changes!!")
|
||||
applyChanges(msg.Data)
|
||||
}
|
||||
}
|
||||
if msg.Type == "changes" {
|
||||
fmt.Println("We're applying changes!!")
|
||||
applyChanges(msg.Data)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func printChange(change interface{}) {
|
||||
// Attempt to type assert and print more details
|
||||
if c, ok := change.(map[string]interface{}); ok {
|
||||
for key, value := range c {
|
||||
fmt.Printf(" %s: %v\n", key, value)
|
||||
}
|
||||
} else {
|
||||
fmt.Printf(" Not a map: %T\n", change)
|
||||
}
|
||||
// Attempt to type assert and print more details
|
||||
if c, ok := change.(map[string]interface{}); ok {
|
||||
for key, value := range c {
|
||||
fmt.Printf(" %s: %v\n", key, value)
|
||||
}
|
||||
} else {
|
||||
fmt.Printf(" Not a map: %T\n", change)
|
||||
}
|
||||
}
|
||||
|
||||
func printChanges(changes []interface{}) {
|
||||
for i, change := range changes {
|
||||
fmt.Printf("Change %d: %+v\n", i, change)
|
||||
printChange(change)
|
||||
}
|
||||
for i, change := range changes {
|
||||
fmt.Printf("Change %d: %+v\n", i, change)
|
||||
printChange(change)
|
||||
}
|
||||
}
|
||||
|
||||
type CRSQLChange struct {
|
||||
TableName string
|
||||
PK []byte
|
||||
ColumnName string
|
||||
Value []byte
|
||||
ColVersion int64
|
||||
DBVersion int64
|
||||
SiteID []byte
|
||||
CL int64
|
||||
Seq int64
|
||||
TableName string
|
||||
PK []byte
|
||||
ColumnName string
|
||||
Value any
|
||||
ColVersion int64
|
||||
DBVersion int64
|
||||
SiteID []byte
|
||||
CL int64
|
||||
Seq int64
|
||||
}
|
||||
|
||||
func mapToCRSQLChange(m map[string]interface{}) (CRSQLChange, error) {
|
||||
var err error
|
||||
change := CRSQLChange{}
|
||||
change := CRSQLChange{}
|
||||
|
||||
change.TableName = m["TableName"].(string)
|
||||
change.ColumnName = m["ColumnName"].(string)
|
||||
change.ColVersion = int64(m["ColVersion"].(float64))
|
||||
change.DBVersion = int64(m["DBVersion"].(float64))
|
||||
change.CL = int64(m["CL"].(float64))
|
||||
change.Seq = int64(m["Seq"].(float64))
|
||||
change.TableName = m["TableName"].(string)
|
||||
change.ColumnName = m["ColumnName"].(string)
|
||||
change.ColVersion = int64(m["ColVersion"].(float64))
|
||||
change.DBVersion = int64(m["DBVersion"].(float64))
|
||||
change.CL = int64(m["CL"].(float64))
|
||||
change.Seq = int64(m["Seq"].(float64))
|
||||
|
||||
// Handle []byte fields
|
||||
change.PK, err = decodeBase64ToByteArray(m["PK"].(string))
|
||||
if err != nil {
|
||||
return change, err
|
||||
}
|
||||
//fmt.Println(m["PK"])
|
||||
//fmt.Println(m["PK"].(string))
|
||||
//fmt.Println(base64.URLEncoding.DecodeString(m["PK"].(string)))
|
||||
change.Value, err = decodeBase64ToByteArray(m["Value"].(string))
|
||||
if err != nil {
|
||||
return change, err
|
||||
}
|
||||
change.SiteID, err = decodeBase64ToByteArray(m["SiteID"].(string))
|
||||
fmt.Println(change.SiteID)
|
||||
if err != nil {
|
||||
return change, err
|
||||
}
|
||||
// Still unsure about this, it can encode anything
|
||||
if m["Value"] != nil {
|
||||
change.Value = m["Value"]
|
||||
}
|
||||
// Handle []byte fields
|
||||
change.PK, err = decodeBase64ToByteArray(m["PK"].(string))
|
||||
if err != nil {
|
||||
return change, err
|
||||
}
|
||||
change.SiteID, err = decodeBase64ToByteArray(m["SiteID"].(string))
|
||||
fmt.Println(change.SiteID)
|
||||
if err != nil {
|
||||
return change, err
|
||||
}
|
||||
|
||||
return change, nil
|
||||
return change, nil
|
||||
}
|
||||
|
||||
|
||||
func decodeBase64ToByteArray(encodedString string) ([]uint8, error) {
|
||||
// Decode the base64 string
|
||||
decodedBytes, err := base64.StdEncoding.DecodeString(encodedString)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("error decoding base64: %w", err)
|
||||
}
|
||||
// Decode the base64 string
|
||||
decodedBytes, err := base64.StdEncoding.DecodeString(encodedString)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("error decoding base64: %w", err)
|
||||
}
|
||||
|
||||
// Convert bytes to string
|
||||
decodedString := string(decodedBytes)
|
||||
// Convert bytes to string
|
||||
decodedString := string(decodedBytes)
|
||||
|
||||
// Split the string by commas
|
||||
stringSlice := strings.Split(decodedString, ",")
|
||||
// Split the string by commas
|
||||
stringSlice := strings.Split(decodedString, ",")
|
||||
|
||||
// Convert each string to an integer
|
||||
intSlice := make([]uint8, len(stringSlice))
|
||||
for i, s := range stringSlice {
|
||||
num, err := strconv.Atoi(s)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("error converting string to int: %w", err)
|
||||
}
|
||||
intSlice[i] = byte(num)
|
||||
}
|
||||
// Convert each string to an integer
|
||||
intSlice := make([]uint8, len(stringSlice))
|
||||
for i, s := range stringSlice {
|
||||
num, err := strconv.Atoi(s)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("error converting string to int: %w", err)
|
||||
}
|
||||
intSlice[i] = byte(num)
|
||||
}
|
||||
|
||||
return intSlice, nil
|
||||
return intSlice, nil
|
||||
}
|
||||
|
||||
|
||||
func applyChanges(changes []interface{}) {
|
||||
tx, _ := db.Begin()
|
||||
for i, change := range changes {
|
||||
fmt.Println("Change number: ", i)
|
||||
fmt.Println(change)
|
||||
if changeMap, ok := change.(map[string]interface{}); ok {
|
||||
c, err := mapToCRSQLChange(changeMap)
|
||||
if err != nil {
|
||||
fmt.Println("Error converting to CRSQLChange:", err)
|
||||
continue
|
||||
}
|
||||
_, err = tx.Exec(`INSERT INTO crsql_changes VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,
|
||||
c.TableName, c.PK, c.ColumnName, c.Value, c.ColVersion, c.DBVersion, c.SiteID, c.CL, c.Seq)
|
||||
if err != nil {
|
||||
log.Println("Error inserting change:", err)
|
||||
}
|
||||
log.Println("We inserted data successfully??")
|
||||
fmt.Println(c)
|
||||
} else {
|
||||
fmt.Println("Not OK to convert change")
|
||||
fmt.Println("Change look like:")
|
||||
printChange(change)
|
||||
continue
|
||||
}
|
||||
}
|
||||
tx.Commit()
|
||||
tx, _ := db.Begin()
|
||||
for i, change := range changes {
|
||||
fmt.Println("Change number: ", i)
|
||||
fmt.Println(change)
|
||||
if changeMap, ok := change.(map[string]interface{}); ok {
|
||||
c, err := mapToCRSQLChange(changeMap)
|
||||
if err != nil {
|
||||
fmt.Println("Error converting to CRSQLChange:", err)
|
||||
continue
|
||||
}
|
||||
_, err = tx.Exec(`INSERT INTO crsql_changes VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,
|
||||
c.TableName, c.PK, c.ColumnName, c.Value, c.ColVersion, c.DBVersion, c.SiteID, c.CL, c.Seq)
|
||||
if err != nil {
|
||||
log.Println("Error inserting change:", err)
|
||||
}
|
||||
log.Println("We inserted data successfully??")
|
||||
fmt.Println(c)
|
||||
} else {
|
||||
fmt.Println("Not OK to convert change")
|
||||
fmt.Println("Change look like:")
|
||||
printChange(change)
|
||||
continue
|
||||
}
|
||||
}
|
||||
tx.Commit()
|
||||
}
|
||||
|
||||
|
||||
func broadcastChanges(sender *websocket.Conn, changes interface{}) {
|
||||
for client := range clients {
|
||||
if client != sender {
|
||||
client.WriteJSON(map[string]interface{}{"type": "changes", "data": changes})
|
||||
}
|
||||
}
|
||||
for client := range clients {
|
||||
if client != sender {
|
||||
client.WriteJSON(map[string]interface{}{"type": "changes", "data": changes})
|
||||
}
|
||||
}
|
||||
}
|
||||
func main() {
|
||||
var err error
|
||||
val, err := base64.StdEncoding.DecodeString("MTY3LDU0LDQ5LDY3LDExMyw2MCw3NiwxMjAsMTU2LDExMCwyMjcsMTc2LDE4NCwyMjksMjQxLDE0Mw==")
|
||||
decoded, _ := base64.StdEncoding.DecodeString("MTY3LDU0LDQ5LDY3LDExMyw2MCw3NiwxMjAsMTU2LDExMCwyMjcsMTc2LDE4NCwyMjksMjQxLDE0Mw==")
|
||||
if err != nil {
|
||||
log.Fatal("error:", err)
|
||||
}
|
||||
fmt.Printf("%q\n", val)
|
||||
fmt.Printf("%q\n", decoded)
|
||||
sql.Register("sqlite3_with_extensions",
|
||||
var err error
|
||||
if err != nil {
|
||||
log.Fatal("error:", err)
|
||||
}
|
||||
sql.Register("sqlite3_with_extensions",
|
||||
&sqlite3.SQLiteDriver{
|
||||
Extensions: []string{
|
||||
"../db/crsqlite.so",
|
||||
},
|
||||
})
|
||||
db, err = sql.Open("sqlite3_with_extensions", "./todo.sqlite")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
db, err = sql.Open("sqlite3_with_extensions", "./todo.sqlite")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
err = mast.RunMigrations(db)
|
||||
defer db.Close()
|
||||
defer db.Close()
|
||||
|
||||
// Initialize database and tables...
|
||||
http.HandleFunc("/sync", handleWebSocket)
|
||||
log.Fatal(http.ListenAndServe(":8080", nil))
|
||||
// Initialize database and tables...
|
||||
http.HandleFunc("/sync", handleWebSocket)
|
||||
log.Fatal(http.ListenAndServe(":8080", nil))
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue