filebrowser/frontmatter/frontmatter.go

149 lines
3.2 KiB
Go

package frontmatter
import (
"log"
"sort"
"github.com/hacdias/caddy-hugo/utils"
"github.com/spf13/hugo/parser"
)
// Pretty creates a new FrontMatter object
func Pretty(content []byte) (interface{}, error) {
frontType := parser.DetectFrontMatter(rune(content[0]))
front, err := frontType.Parse(content)
if err != nil {
return []string{}, err
}
object := new(frontmatter)
object.Type = "object"
return rawToPretty(front, object), nil
}
type frontmatter struct {
Name string
Title string
Content interface{}
Type string
Parent *frontmatter
}
func sortByTitle(config []*frontmatter) {
keys := make([]string, len(config))
positionByTitle := make(map[string]int)
for index, element := range config {
keys[index] = element.Title
positionByTitle[element.Title] = index
}
sort.Strings(keys)
cnf := make([]*frontmatter, len(config))
for index, title := range keys {
cnf[index] = config[positionByTitle[title]]
}
for index := range config {
config[index] = cnf[index]
}
}
func rawToPretty(config interface{}, parent *frontmatter) interface{} {
objects := []*frontmatter{}
arrays := []*frontmatter{}
fields := []*frontmatter{}
if parent.Type == "array" {
for index, element := range config.([]interface{}) {
c := new(frontmatter)
c.Parent = parent
if utils.IsMap(element) {
c.Type = "object"
if parent.Name == "" {
c.Name = c.Title
} else {
c.Name = parent.Name + "[" + c.Name + "]"
}
c.Content = rawToPretty(config.([]interface{})[index], c)
objects = append(objects, c)
} else if utils.IsSlice(element) {
c.Type = "array"
c.Name = parent.Name + "[" + c.Name + "]"
c.Content = rawToPretty(config.([]interface{})[index], c)
arrays = append(arrays, c)
} else {
// TODO: add string, boolean, number
c.Type = "string"
c.Name = parent.Name + "[]"
c.Title = element.(string)
c.Content = config.([]interface{})[index]
fields = append(fields, c)
}
}
} else if parent.Type == "object" {
for name, element := range config.(map[string]interface{}) {
c := new(frontmatter)
c.Title = name
c.Parent = parent
if utils.IsMap(element) {
c.Type = "object"
if parent.Name == "" {
c.Name = c.Title
} else {
c.Name = parent.Name + "[" + c.Title + "]"
}
c.Content = rawToPretty(config.(map[string]interface{})[name], c)
objects = append(objects, c)
} else if utils.IsSlice(element) {
c.Type = "array"
if parent.Name == "" {
c.Name = name
} else {
c.Name = parent.Name + "[" + c.Name + "]"
}
c.Content = rawToPretty(config.(map[string]interface{})[c.Title], c)
arrays = append(arrays, c)
} else {
// TODO: add string, boolean, number
c.Type = "string"
if parent.Name == "" {
c.Name = name
} else {
c.Name = parent.Name + "[" + name + "]"
}
c.Content = element
fields = append(fields, c)
}
}
} else {
log.Panic("Parent type not allowed.")
}
sortByTitle(objects)
sortByTitle(arrays)
sortByTitle(fields)
settings := []*frontmatter{}
settings = append(settings, fields...)
settings = append(settings, arrays...)
settings = append(settings, objects...)
return settings
}