dndex/view/html.go

80 lines
1.7 KiB
Go

package view
import (
"encoding/json"
"fmt"
"local/dndex/config"
"local/dndex/storage"
"local/dndex/storage/entity"
"log"
"net/http"
"path"
"strings"
)
func Html(g storage.Graph) error {
port := config.New().Port
log.Println("listening on", port)
err := http.ListenAndServe(fmt.Sprintf(":%d", port), foo(g))
return err
}
func foo(g storage.Graph) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var err error
switch path.Base(r.URL.Path) {
case "who":
err = who(g, w, r)
default:
http.NotFound(w, r)
return
}
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
})
}
func who(g storage.Graph, w http.ResponseWriter, r *http.Request) error {
namespace := path.Dir(r.URL.Path)
if len(namespace) < 2 {
http.NotFound(w, r)
return nil
}
namespace = strings.Replace(namespace[1:], "/", ".", -1)
ids := r.URL.Query()["id"]
_, verbose := r.URL.Query()["v"]
results := make(map[string]entity.One)
for i := 0; i < len(ids); i++ {
id := ids[i]
ones, err := g.List(r.Context(), namespace, id)
if err != nil {
return err
}
if len(ones) != 1 {
ones = append(ones, entity.One{})
}
one := ones[0]
if verbose {
ones, err := g.List(r.Context(), namespace, one.Peers()...)
if err != nil {
return err
}
for _, another := range ones {
another.Connections = nil
for j := range one.Connections {
if one.Connections[j].Name == another.Name {
one.Connections[j] = entity.One{
Name: another.Name,
Relationship: one.Connections[j].Relationship,
}
}
}
}
}
results[id] = one
}
log.Println("results:", results)
return json.NewEncoder(w).Encode(results)
}