Store all mutable data in the same persist directory

1 files changed, 23 insertions, 11 deletions

diff --git a/modules/zelfoverhoor/zelfoverhoor.js b/modules/zelfoverhoor/zelfoverhoor.js
index 08431d1..03de63c 100644
--- a/modules/zelfoverhoor/zelfoverhoor.js
+++ b/modules/zelfoverhoor/zelfoverhoor.js
@@ -1,7 +1,10 @@
 var cmn=require("../$common.js"),
-    fs=require("fs");
+    fs=require("fs"),
+    mkdirp=require("mkdirp");
 
 var moddir;
+var dbdir=cmn.persistdir+"/zelfoverhoor";
+mkdirp.sync(dbdir);
 
 var accounts=require("./accounts.json");
 
@@ -28,21 +31,21 @@ var persistDB=(function(){
 		var s=JSON.stringify(questiondb);
 		if(s!=qdbCache){
 			qdbCache=s;
-			fs.writeFile(moddir+"/questiondb.json",JSON.stringify(questiondb),function(err){
+			fs.writeFile(dbdir+"/questiondb.json",s,function(err){
 				if(err)console.log("write questiondb.json:",err);
 			});
 		}
 		s=JSON.stringify(questionsets);
 		if(s!=qsetsCache){
 			qsetsCache=s;
-			fs.writeFile(moddir+"/questionsets.json",JSON.stringify(questionsets),function(err){
+			fs.writeFile(dbdir+"/questionsets.json",s,function(err){
 				if(err)console.log("write questionsets.json:",err);
 			});
 		}
 		s=JSON.stringify(userlists);
 		if(s!=ulCache){
 			ulCache=s;
-			fs.writeFile(moddir+"/userlists.json",JSON.stringify(userlists),function(err){
+			fs.writeFile(dbdir+"/userlists.json",s,function(err){
 				if(err)console.log("write userlists.json:",err);
 			});
 		}
@@ -82,15 +85,24 @@ function checkQsetJson(json,errfunc){
 	return qset;
 }
 
+function canAccessFile(fname){
+	try {
+		fs.accessSync(fname,fs.constants.F_OK|fs.constants.R_OK|fs.constants.W_OK);
+		return true;
+	} catch(e) {
+		return false;
+	}
+}
+
 module.exports=function(app,io,_moddir){
 	moddir=_moddir;
 
-	try {
-		questiondb=JSON.parse(fs.readFileSync(moddir+"/questiondb.json"));
-		questionsets=JSON.parse(fs.readFileSync(moddir+"/questionsets.json"));
-		userlists=JSON.parse(fs.readFileSync(moddir+"/userlists.json"));
-	} catch(e){
-		console.log("error on reading zelfoverhoor db");
+	if(canAccessFile(dbdir+"/questiondb.json")&&canAccessFile(dbdir+"/questionsets.json")&&canAccessFile(dbdir+"/userlists.json")){
+		questiondb=JSON.parse(fs.readFileSync(dbdir+"/questiondb.json"));
+		questionsets=JSON.parse(fs.readFileSync(dbdir+"/questionsets.json"));
+		userlists=JSON.parse(fs.readFileSync(dbdir+"/userlists.json"));
+	} else {
+		console.log("newly creating zelfoverhoor db");
 		questiondb={};
 		questionsets={};
 		userlists={};
@@ -229,7 +241,7 @@ module.exports=function(app,io,_moddir){
 
 	app.post("/zelfoverhoor/error",function(req,res){
 		if(typeof req.body=="string"){
-			fs.appendFile(moddir+"/errors.txt",new Date().toString()+" "+req.body+"\n",function(err){
+			fs.appendFile(dbdir+"/errors.txt",new Date().toString()+" "+req.body+"\n",function(err){
 				if(err)console.log(err);
 			});
 		}