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package blog
import (
"encoding/json"
"fmt"
"time"
"github.com/SayaAndy/saya-today-web/internal/frontmatter"
)
const IndexFileName = "index.json"
const MedleysIndexFileName = "medleys.json"
const IndexSchemaVersion = 2
type IndexEntry struct {
Link string `json:"link"`
ModifiedTime time.Time `json:"modifiedTime"`
Title string `json:"title"`
ShortDescription string `json:"shortDescription"`
ActionDate string `json:"actionDate"`
PublishedTime time.Time `json:"publishedTime"`
Thumbnail string `json:"thumbnail"`
Tags []string `json:"tags"`
Geolocation string `json:"geolocation"`
Medley string `json:"medley,omitempty"`
MedleyPart int `json:"medleyPart,omitempty"`
}
func (e IndexEntry) Metadata() *frontmatter.Metadata {
return &frontmatter.Metadata{
Title: e.Title,
ShortDescription: e.ShortDescription,
ActionDate: e.ActionDate,
PublishedTime: e.PublishedTime,
Thumbnail: e.Thumbnail,
Tags: e.Tags,
Geolocation: e.Geolocation,
Medley: e.Medley,
MedleyPart: e.MedleyPart,
}
}
type IndexV2Category struct {
GeneratedAt time.Time `json:"generatedAt"`
Pages map[string]IndexEntry `json:"pages"`
}
type IndexV1Category struct {
GeneratedAt time.Time `json:"generatedAt"`
Pages []IndexEntry `json:"pages"`
}
type Index struct {
SchemaVersion int `json:"schemaVersion"`
GeneratedAt time.Time `json:"generatedAt"`
Categories any `json:"categories"`
}
func (idx *Index) UnmarshalJSON(data []byte) error {
var tmp struct {
SchemaVersion int `json:"schemaVersion"`
GeneratedAt time.Time `json:"generatedAt"`
Categories json.RawMessage `json:"categories"`
}
if err := json.Unmarshal(data, &tmp); err != nil {
return err
}
idx.SchemaVersion = tmp.SchemaVersion
idx.GeneratedAt = tmp.GeneratedAt
switch tmp.SchemaVersion {
case 1:
var categories map[string]*IndexV1Category
if err := json.Unmarshal(tmp.Categories, &categories); err != nil {
return fmt.Errorf("unmarshal map[string]*IndexV1Category: %w", err)
}
idx.Categories = &categories
case 2:
var categories map[string]*IndexV2Category
if err := json.Unmarshal(tmp.Categories, &categories); err != nil {
return fmt.Errorf("unmarshal map[string]*IndexV2Category: %w", err)
}
idx.Categories = &categories
default:
return fmt.Errorf("unsupported index version: %d", tmp.SchemaVersion)
}
return nil
}
type MedleyEntry struct {
Codename string `json:"codename"`
Content []string `json:"content"`
}
type MedleyPageEntry struct {
Codename string `json:"codename"`
Position int `json:"position"`
}
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