Add/remove/view themes and exercices

admin/api_theme.go

@@ -1,21 +1,53 @@
 package main
 
 import (
+	"encoding/json"
+	"errors"
 	"strconv"
 )
 
 var ApiThemesRouting = map[string]DispatchFunction{
-	"GET": listTheme,
+	"GET":    listTheme,
+	"POST":   creationTheme,
+	"DELETE": deletionTheme,
+}
+
+type uploadedTheme struct {
+	Name string
+}
+
+type uploadedExercice struct {
+	Title     string
+	Statement string
+	Hint      string
+	Depend    *int
+	Gain      int
+	VideoURI  string
+}
+
+func getTheme(args []string) (Theme, error) {
+	if tid, err := strconv.Atoi(string(args[0])); err != nil {
+		return Theme{}, err
+	} else {
+		return GetTheme(tid)
+	}
+}
+
+func getExercice(args []string) (Exercice, error) {
+	if theme, err := getTheme(args); err != nil {
+		return Exercice{}, err
+	} else if eid, err := strconv.Atoi(string(args[1])); err != nil {
+		return Exercice{}, err
+	} else {
+		return theme.GetExercice(eid)
+	}
 }
 
 func listTheme(args []string, body []byte) (interface{}, error) {
-	if len(args) == 1 {
-		// List given theme
-		if tid, err := strconv.Atoi(string(args[0])); err != nil {
-			return nil, err
-		} else {
-			return GetTheme(tid)
-		}
+	if len(args) == 2 {
+		return getExercice(args)
+	} else if len(args) == 1 {
+		return getTheme(args)
 	} else if len(args) == 0 {
 		// List all themes
 		return GetThemes()
@@ -23,3 +55,64 @@ func listTheme(args []string, body []byte) (interface{}, error) {
 		return nil, nil
 	}
 }
+
+func creationTheme(args []string, body []byte) (interface{}, error) {
+	if len(args) == 1 {
+		if theme, err := getTheme(args); err != nil {
+			return nil, err
+		} else {
+			// Create a new exercice
+			var ue uploadedExercice
+			if err := json.Unmarshal(body, &ue); err != nil {
+				return nil, err
+			}
+
+			if len(ue.Title) == 0 {
+				return nil, errors.New("Title not filled")
+			}
+
+			var depend *Exercice = nil
+			if ue.Depend != nil {
+				if d, err := GetExercice(*ue.Depend); err != nil {
+					return nil, err
+				} else {
+					depend = &d
+				}
+			}
+
+			return theme.AddExercice(ue.Title, ue.Statement, ue.Hint, depend, ue.Gain, ue.VideoURI)
+		}
+	} else if len(args) == 0 {
+		// Create a new theme
+		var ut uploadedTheme
+		if err := json.Unmarshal(body, &ut); err != nil {
+			return nil, err
+		}
+
+		if len(ut.Name) == 0 {
+			return nil, errors.New("Theme's name not filled")
+		}
+
+		return CreateTheme(ut.Name)
+	} else {
+		return nil, nil
+	}
+}
+
+func deletionTheme(args []string, body []byte) (interface{}, error) {
+	if len(args) == 2 {
+		if exercice, err := getExercice(args); err != nil {
+			return nil, err
+		} else {
+			return exercice.Delete()
+		}
+	} else if len(args) == 1 {
+		if theme, err := getTheme(args); err != nil {
+			return nil, err
+		} else {
+			return theme.Delete()
+		}
+	} else {
+		return nil, nil
+	}
+}