package openapi
import (
"embed"
"encoding/json"
"io/fs"
"log"
"net/http"
"strings"
)
//go:embed specs/*.json
var specFiles embed.FS
var mergedSpec []byte
func init() {
spec, err := buildSpec()
if err != nil {
log.Fatalf("openapi: build spec: %v", err)
}
mergedSpec = spec
}
func buildSpec() ([]byte, error) {
base, err := loadJSON("specs/base.json")
if err != nil {
return nil, err
}
schemas, err := loadJSON("specs/schemas.json")
if err != nil {
return nil, err
}
if comps, ok := schemas["components"]; ok {
base["components"] = comps
}
allPaths := make(map[string]interface{})
entries, err := fs.ReadDir(specFiles, "specs")
if err != nil {
return nil, err
}
for _, entry := range entries {
name := entry.Name()
if name == "base.json" || name == "schemas.json" || !strings.HasSuffix(name, ".json") {
continue
}
partial, err := loadJSON("specs/" + name)
if err != nil {
return nil, err
}
if paths, ok := partial["paths"].(map[string]interface{}); ok {
for path, ops := range paths {
allPaths[path] = ops
}
}
}
base["paths"] = allPaths
return json.MarshalIndent(base, "", " ")
}
func loadJSON(path string) (map[string]interface{}, error) {
data, err := specFiles.ReadFile(path)
if err != nil {
return nil, err
}
var m map[string]interface{}
if err := json.Unmarshal(data, &m); err != nil {
return nil, err
}
return m, nil
}
func SpecHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
w.Header().Set("Cache-Control", "public, max-age=3600")
w.Write(mergedSpec)
}
const swaggerHTML = `
Calendar & Contacts API – Docs
`
func DocsHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.Write([]byte(swaggerHTML))
}