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package editform
import (
"fmt"
"reflect"
"strconv"
"strings"
"github.com/aerogo/api"
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"github.com/animenotifier/arn"
"github.com/animenotifier/notify.moe/components"
"github.com/animenotifier/notify.moe/utils"
)
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// Render renders a generic editing UI for any kind of datatype that has an ID.
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func Render(obj interface{}, title string, user *arn.User) string {
t := reflect.TypeOf(obj).Elem()
v := reflect.ValueOf(obj).Elem()
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id := findMainID(t, v)
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lowerCaseTypeName := strings.ToLower(t.Name())
endpoint := `/api/` + lowerCaseTypeName + `/` + id.String()
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var b strings.Builder
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b.WriteString(`<div class="widget-form">`)
b.WriteString(`<div class="widget" data-api="` + endpoint + `">`)
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// Title
b.WriteString(`<h1 class="mountable">`)
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b.WriteString(title)
b.WriteString(`</h1>`)
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// Render the object with its fields
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RenderObject(&b, obj, "")
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// Additional buttons when logged in
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if user != nil {
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b.WriteString(`<div class="buttons">`)
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// Publish button
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_, ok := t.FieldByName("IsDraft")
if ok {
isDraft := v.FieldByName("IsDraft").Interface().(bool)
if isDraft {
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b.WriteString(`<div class="buttons"><button class="mountable action" data-action="publish" data-trigger="click">` + utils.Icon("share-alt") + `Publish</button></div>`)
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}
}
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// Redownload button
track, isSoundTrack := obj.(*arn.SoundTrack)
if isSoundTrack && !track.IsDraft && track.HasMediaByService("Youtube") && track.File == "" && (user.Role == "editor" || user.Role == "admin") {
b.WriteString(`<button class="mountable action" data-action="downloadSoundTrackFile" data-trigger="click" data-id="` + track.ID + `">` + utils.Icon("refresh") + `Redownload</button>`)
}
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// Delete button
_, isDeletable := obj.(api.Deletable)
if isDeletable && (user.Role == "editor" || user.Role == "admin") {
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returnPath := ""
switch lowerCaseTypeName {
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case "anime":
returnPath = "/explore"
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case "company":
returnPath = "/companies"
default:
returnPath = "/" + lowerCaseTypeName + "s"
}
b.WriteString(`<button class="mountable action" data-action="deleteObject" data-trigger="click" data-return-path="` + returnPath + `" data-confirm-type="` + lowerCaseTypeName + `">` + utils.Icon("trash") + `Delete</button>`)
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}
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b.WriteString(`</div>`)
}
b.WriteString("</div>")
b.WriteString("</div>")
return b.String()
}
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// RenderObject renders the UI for the object into the bytes buffer and appends an ID prefix for all API requests.
// The ID prefix should either be empty or end with a dot character.
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func RenderObject(b *strings.Builder, obj interface{}, idPrefix string) {
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t := reflect.TypeOf(obj)
v := reflect.ValueOf(obj)
if t.Kind() == reflect.Ptr {
t = t.Elem()
v = v.Elem()
}
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// Fields
for i := 0; i < t.NumField(); i++ {
field := t.Field(i)
RenderField(b, &v, field, idPrefix)
}
}
// RenderField ...
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func RenderField(b *strings.Builder, v *reflect.Value, field reflect.StructField, idPrefix string) {
fieldValue := reflect.Indirect(v.FieldByName(field.Name))
// Embedded fields
if field.Anonymous {
RenderObject(b, fieldValue.Interface(), idPrefix)
return
}
if field.Tag.Get("editable") != "true" {
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return
}
b.WriteString("<div class='mountable'>")
defer b.WriteString("</div>")
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fieldType := field.Type.String()
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// String
if fieldType == "string" {
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renderStringField(b, v, field, idPrefix, fieldValue)
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return
}
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// Int
if fieldType == "int" {
b.WriteString(components.InputNumber(idPrefix+field.Name, float64(fieldValue.Int()), field.Name, field.Tag.Get("tooltip"), "", "", "1"))
return
}
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// Float
if fieldType == "float64" {
b.WriteString(components.InputNumber(idPrefix+field.Name, fieldValue.Float(), field.Name, field.Tag.Get("tooltip"), "", "", ""))
return
}
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// Bool
if fieldType == "bool" {
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if field.Name == "IsDraft" {
return
}
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b.WriteString(components.InputBool(idPrefix+field.Name, fieldValue.Bool(), field.Name, field.Tag.Get("tooltip")))
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return
}
// Array of strings
if fieldType == "[]string" {
b.WriteString(components.InputTags(idPrefix+field.Name, fieldValue.Interface().([]string), field.Name, field.Tag.Get("tooltip")))
return
}
// Any kind of array
if strings.HasPrefix(fieldType, "[]") {
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renderSliceField(b, v, field, idPrefix, fieldType, fieldValue)
return
}
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// Any custom field type will be recursively rendered via another RenderObject call
b.WriteString(`<div class="widget-section">`)
b.WriteString(`<h3 class="widget-title">` + field.Name + `</h3>`)
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// Indent the fields
b.WriteString(`<div class="indent">`)
RenderObject(b, fieldValue.Interface(), field.Name+".")
b.WriteString(`</div>`)
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b.WriteString(`</div>`)
}
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// String field
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func renderStringField(b *strings.Builder, v *reflect.Value, field reflect.StructField, idPrefix string, fieldValue reflect.Value) {
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idType := field.Tag.Get("idType")
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// Try to infer the ID type by the field name
if idType == "" {
switch field.Name {
case "AnimeID":
idType = "Anime"
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case "CharacterID":
idType = "Character"
}
}
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showPreview := idType != "" && fieldValue.String() != ""
if showPreview {
b.WriteString("<div class='widget-section-with-preview'>")
}
// Input field
if field.Tag.Get("datalist") != "" {
dataList := field.Tag.Get("datalist")
values := arn.DataLists[dataList]
b.WriteString(components.InputSelection(idPrefix+field.Name, fieldValue.String(), field.Name, field.Tag.Get("tooltip"), values))
} else if field.Tag.Get("type") == "textarea" {
b.WriteString(components.InputTextArea(idPrefix+field.Name, fieldValue.String(), field.Name, field.Tag.Get("tooltip")))
} else if field.Tag.Get("type") == "upload" {
endpoint := field.Tag.Get("endpoint")
id := v.FieldByName("ID").String()
endpoint = strings.Replace(endpoint, ":id", id, 1)
b.WriteString(components.InputFileUpload(idPrefix+field.Name, field.Name, field.Tag.Get("filetype"), endpoint))
} else {
b.WriteString(components.InputText(idPrefix+field.Name, fieldValue.String(), field.Name, field.Tag.Get("tooltip")))
}
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if showPreview {
b.WriteString("<div class='widget-section-preview'>")
}
// Preview
switch idType {
case "Anime":
animeID := fieldValue.String()
anime, err := arn.GetAnime(animeID)
if err == nil {
b.WriteString(components.EditFormImagePreview(anime.Link(), anime.ImageLink("small"), true, anime.Title.ByUser(nil)))
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}
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case "Character":
characterID := fieldValue.String()
character, err := arn.GetCharacter(characterID)
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if err == nil {
b.WriteString(components.EditFormImagePreview(character.Link(), character.ImageLink("medium"), true, character.Name.ByUser(nil)))
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}
case "":
break
default:
fmt.Println("Error: Unknown idType tag: " + idType)
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}
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// Close preview tags
if showPreview {
b.WriteString("</div></div>")
}
}
// Slice field
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func renderSliceField(b *strings.Builder, v *reflect.Value, field reflect.StructField, idPrefix string, fieldType string, fieldValue reflect.Value) {
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b.WriteString(`<div class="widget-section">`)
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b.WriteString(`<h3 class="widget-title">`)
b.WriteString(field.Name)
b.WriteString(`</h3>`)
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for sliceIndex := 0; sliceIndex < fieldValue.Len(); sliceIndex++ {
b.WriteString(`<div class="widget-section">`)
b.WriteString(`<div class="widget-title">`)
// Title
b.WriteString(strconv.Itoa(sliceIndex+1) + ". " + field.Name)
b.WriteString(`<div class="spacer"></div>`)
// Remove button
b.WriteString(`<button class="action" title="Delete this ` + field.Name + `" data-action="arrayRemove" data-trigger="click" data-field="` + field.Name + `" data-index="`)
b.WriteString(strconv.Itoa(sliceIndex))
b.WriteString(`">` + utils.RawIcon("trash") + `</button>`)
b.WriteString(`</div>`)
arrayObj := fieldValue.Index(sliceIndex).Interface()
arrayIDPrefix := fmt.Sprintf("%s[%d].", field.Name, sliceIndex)
RenderObject(b, arrayObj, arrayIDPrefix)
// Preview
// elementValue := fieldValue.Index(sliceIndex)
// RenderArrayElement(b, &elementValue)
if fieldType == "[]*arn.ExternalMedia" {
b.WriteString(components.ExternalMedia(fieldValue.Index(sliceIndex).Interface().(*arn.ExternalMedia)))
}
b.WriteString(`</div>`)
}
b.WriteString(`<div class="buttons">`)
b.WriteString(`<button class="action" data-action="arrayAppend" data-trigger="click" data-field="` + field.Name + `">` + utils.Icon("plus") + `Add ` + field.Name + `</button>`)
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b.WriteString(`</div>`)
b.WriteString(`</div>`)
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}
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// findMainID finds the main ID of the object.
func findMainID(t reflect.Type, v reflect.Value) reflect.Value {
idField := v.FieldByName("ID")
if idField.IsValid() {
return reflect.Indirect(idField)
}
for i := 0; i < t.NumField(); i++ {
field := t.Field(i)
if field.Tag.Get("mainID") == "true" {
return reflect.Indirect(v.Field(i))
}
}
panic("Type " + t.Name() + " doesn't have a main ID!")
}