super-graph/serv/vars.go
2019-07-29 01:13:33 -04:00

96 lines
2.0 KiB
Go

package serv
import (
"io"
"strconv"
"strings"
"github.com/valyala/fasttemplate"
)
func varMap(ctx *coreContext) variables {
userIDFn := func(w io.Writer, _ string) (int, error) {
if v := ctx.Value(userIDKey); v != nil {
return w.Write([]byte(v.(string)))
}
return 0, errNoUserID
}
userIDProviderFn := func(w io.Writer, _ string) (int, error) {
if v := ctx.Value(userIDProviderKey); v != nil {
return w.Write([]byte(v.(string)))
}
return 0, errNoUserID
}
userIDTag := fasttemplate.TagFunc(userIDFn)
userIDProviderTag := fasttemplate.TagFunc(userIDProviderFn)
vm := variables{
"user_id": userIDTag,
"user_id_provider": userIDProviderTag,
"USER_ID": userIDTag,
"USER_ID_PROVIDER": userIDProviderTag,
}
for k, v := range ctx.req.Vars {
var buf []byte
k = strings.ToLower(k)
if _, ok := vm[k]; ok {
continue
}
switch val := v.(type) {
case string:
vm[k] = val
case int:
vm[k] = strconv.AppendInt(buf, int64(val), 10)
case int64:
vm[k] = strconv.AppendInt(buf, val, 10)
case float64:
vm[k] = strconv.AppendFloat(buf, val, 'f', -1, 64)
}
}
return vm
}
func varList(ctx *coreContext, args []string) []interface{} {
vars := make([]interface{}, 0, len(args))
for k, v := range ctx.req.Vars {
ctx.req.Vars[strings.ToLower(k)] = v
}
for i := range args {
arg := strings.ToLower(args[i])
if arg == "user_id" {
if v := ctx.Value(userIDKey); v != nil {
vars = append(vars, v.(string))
}
}
if arg == "user_id_provider" {
if v := ctx.Value(userIDProviderKey); v != nil {
vars = append(vars, v.(string))
}
}
if v, ok := ctx.req.Vars[arg]; ok {
switch val := v.(type) {
case string:
vars = append(vars, val)
case int:
vars = append(vars, strconv.FormatInt(int64(val), 10))
case int64:
vars = append(vars, strconv.FormatInt(int64(val), 10))
case float64:
vars = append(vars, strconv.FormatFloat(val, 'f', -1, 64))
}
}
}
return vars
}