fix: typo

change: do not add console output by default

feat: add GA for docs

refactor: move builtin to internal

refactor: relocate sentry sdk

feat: report events with ga

change: use http client session

fix: report GA events

change: sentry

internal/builtin/function.go

@@ -0,0 +1,46 @@
+package builtin
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"math"
+	"math/rand"
+	"time"
+)
+
+var Functions = map[string]interface{}{
+	"get_timestamp":     getTimestamp,    // call without arguments
+	"sleep":             sleep,           // call with one argument
+	"gen_random_string": genRandomString, // call with one argument
+	"max":               math.Max,        // call with two arguments
+	"md5":               MD5,
+}
+
+func init() {
+	rand.Seed(time.Now().UnixNano())
+}
+
+func getTimestamp() int64 {
+	return time.Now().UnixNano() / int64(time.Millisecond)
+}
+
+func sleep(nSecs int) {
+	time.Sleep(time.Duration(nSecs) * time.Second)
+}
+
+const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
+
+func genRandomString(n int) string {
+	lettersLen := len(letters)
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = letters[rand.Intn(lettersLen)]
+	}
+	return string(b)
+}
+
+func MD5(str string) string {
+	hasher := md5.New()
+	hasher.Write([]byte(str))
+	return hex.EncodeToString(hasher.Sum(nil))
+}