From 24ffcce68d813f508ac0312b7e86f9565218f25f Mon Sep 17 00:00:00 2001
From: Guillaume ARM <guillaume.arm@payfit.com>
Date: Wed, 22 May 2024 19:31:53 +0200
Subject: [PATCH] feat(inferium-server): configs are persisted

---
 inferium-server.lua | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/inferium-server.lua b/inferium-server.lua
index 9756f71..3be923a 100644
--- a/inferium-server.lua
+++ b/inferium-server.lua
@@ -1,14 +1,39 @@
 local net = require('libs/net')
 local inferium = require('config/inferium')
 
+local VERSION = "1.1.0"
 local INFERIUM_SERVER = 'inferium.com'
+
+local PERSISTED_CONFIGS = '/data/inferium-configs'
 local UPGRADE_SCRIPT = '/upgrade.lua'
-local VERSION = "1.0.0"
 
-local defaultConfig= inferium.defaultConfig or error('no default config provided in config', 0)
+local defaultConfig = inferium.defaultConfig or error('no default config provided in config', 0)
 
--- TODO: persistance
-local LOCAL_CONFIGS = {}
+local readPersistedConfigs = function()
+  local file = fs.open(PERSISTED_CONFIGS, 'r')
+
+  if not file then
+    return nil
+  end
+
+  local serializedConfigs = file.readAll()
+  file.close()
+
+  return textutils.unserialize(serializedConfigs)
+end
+
+local savePersistedConfigs = function(configs)
+  local file = fs.open(PERSISTED_CONFIGS, 'w')
+
+  if not file then
+    error('savePersistedConfigs: cannot open .minerstate file!')
+  end
+
+  file.write(textutils.serialize(configs))
+  file.close()
+end
+
+local LOCAL_CONFIGS = readPersistedConfigs() or {}
 
 local function getConfigForComputer(computerId)
   return LOCAL_CONFIGS[tostring(computerId)]
@@ -16,6 +41,7 @@ end
 
 local function setConfigForComputer(computerId, config)
   LOCAL_CONFIGS[tostring(computerId)] = config
+  savePersistedConfigs(LOCAL_CONFIGS)
 end
 
 local function getConfig(computerId)