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util.go
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util.go
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package bkl
import (
"fmt"
"github.com/gopatchy/bkl/polyfill"
"gopkg.in/yaml.v3"
)
func popMapValue(m map[string]any, k string) (bool, any, map[string]any) {
v, found := m[k]
if !found {
return false, nil, m
}
m = polyfill.MapsClone(m)
delete(m, k)
return true, v, m
}
func toBool(a any) (bool, bool) {
v, ok := a.(bool)
return v, ok
}
func getMapBoolValue(m map[string]any, k string) (bool, bool) {
v, found := m[k]
if !found {
return false, false
}
return toBool(v)
}
func hasMapBoolValue(m map[string]any, k string, v bool) bool {
v2, ok := getMapBoolValue(m, k)
if !ok {
return false
}
return v2 == v
}
func popMapBoolValue(m map[string]any, k string, v bool) (bool, map[string]any) {
found := hasMapBoolValue(m, k, v)
if found {
m = polyfill.MapsClone(m)
delete(m, k)
}
return found, m
}
func toString(a any) string {
v, ok := a.(string)
if !ok {
return ""
}
return v
}
func getMapStringValue(m map[string]any, k string) string {
v, found := m[k]
if !found {
return ""
}
return toString(v)
}
func popMapStringValue(m map[string]any, k string) (string, map[string]any) {
v := getMapStringValue(m, k)
if v != "" {
m = polyfill.MapsClone(m)
delete(m, k)
}
return v, m
}
func popListString(l []any, v string) (bool, []any) {
found := false
l, _ = filterList(l, func(x any) ([]any, error) {
s, ok := x.(string)
if !ok {
return []any{x}, nil
}
if s == v {
found = true
return nil, nil
}
return []any{x}, nil
})
return found, l
}
func popListMapValue(l []any, k string) (any, []any, error) {
var ret any
l, err := filterList(l, func(x any) ([]any, error) {
xMap, ok := x.(map[string]any)
if !ok {
return []any{x}, nil
}
if len(xMap) != 1 {
return []any{x}, nil
}
found, val, xMap := popMapValue(xMap, k)
if found {
if ret != nil {
return nil, fmt.Errorf("%#v: %w", l, ErrExtraKeys)
}
ret = val
return nil, nil
}
return []any{xMap}, nil
})
if err != nil {
return nil, nil, err
}
return ret, l, nil
}
func hasListMapBoolValue(l []any, k string, v bool) bool {
for _, x := range l {
xMap, ok := x.(map[string]any)
if !ok {
continue
}
if hasMapBoolValue(xMap, k, v) {
return true
}
}
return false
}
func popListMapBoolValue(l []any, k string, v bool) (bool, []any, error) {
if !hasListMapBoolValue(l, k, v) {
return false, l, nil
}
l, err := filterList(l, func(x any) ([]any, error) {
xMap, ok := x.(map[string]any)
if !ok {
return []any{x}, nil
}
found, xMap := popMapBoolValue(xMap, k, v)
if found {
if len(xMap) > 0 {
return nil, fmt.Errorf("%#v: %w", xMap, ErrExtraKeys)
}
return nil, nil
}
return []any{x}, nil
})
if err != nil {
return false, nil, err
}
return true, l, nil
}
func getListMapStringValue(l []any, k string) string {
for _, x := range l {
xMap, ok := x.(map[string]any)
if !ok {
continue
}
v2 := getMapStringValue(xMap, k)
if v2 != "" {
return v2
}
}
return ""
}
func popListMapStringValue(l []any, k string) (string, []any, error) {
v2 := getListMapStringValue(l, k)
if v2 == "" {
return "", l, nil
}
l, err := filterList(l, func(x any) ([]any, error) {
xMap, ok := x.(map[string]any)
if !ok {
return []any{x}, nil
}
v3, xMap := popMapStringValue(xMap, k)
if v3 != "" {
if len(xMap) > 0 {
return nil, fmt.Errorf("%#v: %w", xMap, ErrExtraKeys)
}
return nil, nil
}
return []any{x}, nil
})
if err != nil {
return "", nil, err
}
return v2, l, nil
}
func filterMap(m map[string]any, filter func(string, any) (map[string]any, error)) (map[string]any, error) {
ret := map[string]any{}
ks := polyfill.MapsKeys(m)
polyfill.SlicesSort(ks)
for _, k := range ks {
v := m[k]
m2, err := filter(k, v)
if err != nil {
return nil, err
}
for k2, v2 := range m2 {
ret[k2] = v2
}
}
return ret, nil
}
func filterList(l []any, filter func(any) ([]any, error)) ([]any, error) {
ret := []any{}
for _, v := range l {
l2, err := filter(v)
if err != nil {
return nil, err
}
ret = append(ret, l2...)
}
return ret, nil
}
func toStringList(l []any) ([]string, error) {
ret := []string{}
for _, v := range l {
switch v2 := v.(type) {
case string:
ret = append(ret, v2)
default:
return nil, fmt.Errorf("%T: %w", v, ErrInvalidType)
}
}
return ret, nil
}
func toStringListPermissive(v any) ([]string, error) {
v2, ok := v.([]any)
if !ok {
return nil, fmt.Errorf("%T: %w", v, ErrInvalidType)
}
ret := []string{}
for _, v3 := range v2 {
ret = append(ret, fmt.Sprintf("%v", v3))
}
return ret, nil
}
func deepClone(v any) (any, error) {
yml, err := yaml.Marshal(v)
if err != nil {
return nil, err
}
var ret any
err = yaml.Unmarshal(yml, &ret)
if err != nil {
return nil, err
}
return ret, nil
}