From d1c5a545d9ae20b9985f38bd03064186186765e3 Mon Sep 17 00:00:00 2001
From: nemunaire <nemunaire@nemunai.re>
Date: Fri, 9 Dec 2016 11:49:29 +0100
Subject: [PATCH] backend: can open hint

---
 backend/hint.go | 36 ++++++++++++++++++++++++++++++++++++
 backend/main.go |  2 ++
 libfic/hint.go  |  9 +++++++++
 libfic/team.go  |  5 +++++
 4 files changed, 52 insertions(+)
 create mode 100644 backend/hint.go

diff --git a/backend/hint.go b/backend/hint.go
new file mode 100644
index 00000000..17124f5b
--- /dev/null
+++ b/backend/hint.go
@@ -0,0 +1,36 @@
+package main
+
+import (
+	"encoding/json"
+	"log"
+	"io/ioutil"
+	"os"
+
+	"srs.epita.fr/fic-server/libfic"
+)
+
+type askOpenHint struct {
+	HintId       int64 `json:"id"`
+}
+
+func treatOpeningHint(pathname string, team fic.Team) {
+	var ask askOpenHint
+
+	if cnt_raw, err := ioutil.ReadFile(pathname); err != nil {
+		log.Println("[ERR]", err)
+	} else if err := json.Unmarshal(cnt_raw, &ask); err != nil {
+		log.Println("[ERR]", err)
+	} else if ask.HintId == 0 {
+		log.Println("[WRN] Invalid content in hint file: ", pathname)
+		os.Remove(pathname)
+	} else if hint, err := fic.GetHint(ask.HintId); err != nil {
+		log.Println("[ERR]", err)
+	} else if err := team.OpenHint(hint); err != nil {
+		log.Println("[ERR]", err)
+	} else {
+		genTeamMyFile(team)
+		if err := os.Remove(pathname); err != nil {
+			log.Println("[ERR]", err)
+		}
+	}
+}
diff --git a/backend/main.go b/backend/main.go
index 44e44ee2..229c9507 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -116,6 +116,8 @@ func treat(raw_path string) {
 			log.Println("[ERR]", err)
 		} else if spath[2] == "name" {
 			treatRename(raw_path, team)
+		} else if spath[2] == "hint" {
+			treatOpeningHint(raw_path, team)
 		} else {
 			treatSubmission(raw_path, team, spath[2])
 		}
diff --git a/libfic/hint.go b/libfic/hint.go
index 46ae6a6f..123d4a02 100644
--- a/libfic/hint.go
+++ b/libfic/hint.go
@@ -11,6 +11,15 @@ type EHint struct {
 	Cost       int64  `json:"cost"`
 }
 
+func GetHint(id int64) (EHint, error) {
+	var h EHint
+	if err := DBQueryRow("SELECT id_hint, id_exercice, title, content, cost FROM exercice_hints WHERE id_hint = ?", id).Scan(&h.Id, &h.IdExercice, &h.Title, &h.Content, &h.Cost); err != nil {
+		return h, err
+	}
+
+	return h, nil
+}
+
 func (e Exercice) GetHints() ([]EHint, error) {
 	if rows, err := DBQuery("SELECT id_hint, title, content, cost FROM exercice_hints WHERE id_exercice = ?", e.Id); err != nil {
 		return nil, err
diff --git a/libfic/team.go b/libfic/team.go
index 27fbb40a..03d7a3db 100644
--- a/libfic/team.go
+++ b/libfic/team.go
@@ -216,6 +216,11 @@ func (t Team) HasHint(h EHint) (bool) {
 	return tm != nil
 }
 
+func (t Team) OpenHint(h EHint) (error) {
+	_, err := DBExec("INSERT INTO team_hints (id_team, id_hint, time) VALUES (?, ?, ?)", t.Id, h.Id, time.Now())
+	return err
+}
+
 func (t Team) HasSolved(e Exercice) (bool, time.Time, int64) {
 	var nb *int64
 	var tm *time.Time