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Remco
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Remco
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Feb 18, 2016
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| var LevelUP = require("levelup"), | ||
| Logger = require("./logger.js").Logger; | ||
|
|
||
| var db = LevelUP('./runtime/databases/beastbank'); | ||
| // 1 general error | ||
| // 2 low on cash | ||
| // 3 already exists | ||
| // 4 not found | ||
|
|
||
| fetchSaldo = function(user, callback) { | ||
| db.get(user, function(err, reply) { | ||
| if (err) { | ||
| if (err.notFound) { | ||
| return callback(4, null); | ||
| } else { | ||
| return callback(err, null); | ||
| } | ||
| } | ||
| if (reply && !err) { | ||
| return callback(null, reply); | ||
| } | ||
| }); | ||
| }; | ||
|
|
||
| exports.credit = function(user, cash, callback) { | ||
| fetchSaldo(user, function(err, reply) { | ||
| if (reply) { | ||
| // TODO: Do some DB shit here. | ||
| return callback(null, Math.round(reply + cash)); | ||
| } | ||
| if (err) return callback(err, null); | ||
| }); | ||
| }; | ||
|
|
||
| exports.debit = function(user, cash, callback) { | ||
| fetchSaldo(user, function(err, reply) { | ||
| if (err) return callback(err, null); | ||
| if (reply < cash) { | ||
| return callback(2, null); | ||
| } else if (reply > cash) { | ||
| return callback(null, Math.round(reply - cash)); | ||
| } | ||
| }); | ||
| }; | ||
|
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||
| exports.register = function(user, callback) { | ||
| fetchSaldo(user, function(err, reply) { | ||
| if (reply && !err) return callback(3, null); | ||
| if (err === 4) { | ||
| db.put(user + ':500', function(err) { | ||
| if (!err) return callback(0, 500); | ||
| if (err) return callback(1, null); | ||
| }); | ||
| } | ||
| }); | ||
| }; |
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