creating JSON API server, initial version working

1 files changed, 122 insertions, 0 deletions

diff --git a/system/admin/server.go b/system/admin/server.go
new file mode 100644
index 0000000..730561a
--- /dev/null
+++ b/system/admin/server.go
@@ -0,0 +1,122 @@
+package admin
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/nilslice/cms/content"
+	"github.com/nilslice/cms/management/editor"
+	"github.com/nilslice/cms/management/manager"
+	"github.com/nilslice/cms/system/db"
+)
+
+func init() {
+	http.HandleFunc("/admin", func(res http.ResponseWriter, req *http.Request) {
+		adminView := Admin(nil)
+
+		res.Header().Set("Content-Type", "text/html")
+		res.Write(adminView)
+	})
+
+	http.HandleFunc("/admin/posts", func(res http.ResponseWriter, req *http.Request) {
+		q := req.URL.Query()
+		t := q.Get("type")
+		if t == "" {
+			res.WriteHeader(http.StatusBadRequest)
+		}
+
+		posts := db.GetAll(t)
+		b := &bytes.Buffer{}
+		p := content.Types[t]().(editor.Editable)
+
+		html := `<a href="/admin/edit?type=` + t + `" class="button">New ` + t + `</a>
+			<ul class="posts">`
+		for i := range posts {
+			json.Unmarshal(posts[i], &p)
+			post := `<li><a href="/admin/edit?type=` +
+				t + `&id=` + fmt.Sprintf("%d", p.ContentID()) +
+				`">` + p.ContentName() + `</a></li>`
+			b.Write([]byte(post))
+		}
+		html = html + b.String()
+
+		adminView := Admin([]byte(html))
+
+		res.Header().Set("Content-Type", "text/html")
+		res.Write(adminView)
+	})
+
+	http.HandleFunc("/admin/edit", func(res http.ResponseWriter, req *http.Request) {
+		switch req.Method {
+		case http.MethodGet:
+			q := req.URL.Query()
+			i := q.Get("id")
+			t := q.Get("type")
+			contentType, ok := content.Types[t]
+			if !ok {
+				fmt.Fprintf(res, content.ErrTypeNotRegistered, t)
+				return
+			}
+			post := contentType()
+
+			if i != "" {
+				data, err := db.Get(t + ":" + i)
+				if err != nil {
+					fmt.Println(err)
+					res.WriteHeader(http.StatusInternalServerError)
+					return
+				}
+
+				err = json.Unmarshal(data, post)
+				if err != nil {
+					fmt.Println(err)
+					res.WriteHeader(http.StatusInternalServerError)
+					return
+				}
+			} else {
+				post.(editor.Editable).SetContentID(-1)
+			}
+
+			m, err := manager.Manage(post.(editor.Editable), t)
+			adminView := Admin(m)
+			if err != nil {
+				fmt.Println(err)
+				res.WriteHeader(http.StatusInternalServerError)
+				return
+			}
+			res.Header().Set("Content-Type", "text/html")
+			res.Write(adminView)
+
+		case http.MethodPost:
+			err := req.ParseForm()
+			if err != nil {
+				fmt.Println(err)
+				res.WriteHeader(http.StatusBadRequest)
+				return
+			}
+
+			cid := req.FormValue("id")
+			t := req.FormValue("type")
+			id, err := db.Set(t+":"+cid, req.PostForm)
+			if err != nil {
+				fmt.Println(err)
+				res.WriteHeader(http.StatusInternalServerError)
+				return
+			}
+
+			scheme := req.URL.Scheme
+			host := req.URL.Host
+			path := req.URL.Path
+			sid := fmt.Sprintf("%d", id)
+			desURL := scheme + host + path + "?type=" + t + "&id=" + sid
+			http.Redirect(res, req, desURL, http.StatusFound)
+		}
+	})
+}
+
+// Run starts the Admin system on the port provided
+func Run(port string) {
+	http.ListenAndServe(":"+port, nil)
+}