Fixes silo logging + add log file based logging to silo (#74806)

## About The Pull Request
Fixes deposit logs not working for the silo because they passed in the
mats argument in the wrong format.
Also adds log file based logging to the silo with a new log file:
silo.log.
This log should contain every deposit and withdraw action performed on
the silo and from which machine and location inluding material amounts.
## Why It's Good For The Game
Fixes broken ingame logs + adds better external logs for potential stat
tracking.
## Changelog
🆑 Gamer025
fix: Ingame ore silo logs should now log deposit actions correctly
config: New config for silo logs
/🆑

code/modules/mining/machine_redemption.dm

@@ -74,7 +74,7 @@
 		var/mats = stack_mats & mat_container.materials
 		var/amount = gathered_ore.amount
 		mat_container.insert_item(gathered_ore, ore_multiplier, breakdown_flags=BREAKDOWN_FLAGS_ORM) //insert it
-		materials.silo_log(src, "smelted", amount, "someone", mats)
+		materials.silo_log(src, "smelted", amount, gathered_ore.name, mats)
 		qdel(gathered_ore)
 
 	SEND_SIGNAL(src, COMSIG_ORM_COLLECTED_ORE)

code/modules/mining/machine_silo.dm

@@ -66,7 +66,8 @@ GLOBAL_LIST_EMPTY(silo_access_logs)
 	// assumes unlimited space...
 	var/amount = I.amount
 	materials.user_insert(I, user, breakdown_flags)
-	silo_log(M, "deposited", amount, "sheets", item_mats)
+	var/list/matlist = I.get_material_composition(breakdown_flags)
+	silo_log(M, "deposited", amount, I.name, matlist)
 	return TRUE
 
 /obj/machinery/ore_silo/attackby(obj/item/W, mob/user, params)
@@ -173,7 +174,7 @@ GLOBAL_LIST_EMPTY(silo_access_logs)
 		var/datum/component/material_container/materials = GetComponent(/datum/component/material_container)
 		var/count = materials.retrieve_sheets(text2num(href_list["eject_amt"]), eject_sheet, drop_location())
 		var/list/matlist = list()
-		matlist[eject_sheet] = MINERAL_MATERIAL_AMOUNT
+		matlist[eject_sheet] = MINERAL_MATERIAL_AMOUNT * count
 		silo_log(src, "ejected", -count, "sheets", matlist)
 		return TRUE
 	else if(href_list["page"])
@@ -188,11 +189,20 @@ GLOBAL_LIST_EMPTY(silo_access_logs)
 		I.buffer = src
 		return TRUE
 
+/**
+ * Creates a log entry for depositing/withdrawing from the silo both ingame and in text based log
+ *
+ * Arguments:
+ * - [M][/obj/machinery]: The machine performing the action.
+ * - action: Text that visually describes the action (smelted/deposited/resupplied...)
+ * - amount: The amount of sheets/objects deposited/withdrawn by this action. Positive for depositing, negative for withdrawing.
+ * - noun: Name of the object the action was performed with (sheet, units, ore...)
+ * - [mats][list]: Assoc list in format (material datum = amount of raw materials). Wants the actual amount of raw (iron, glass...) materials involved in this action. If you have 10 metal sheets each worth 2000 iron you would pass a list with the iron material datum = 20000
+ */
 /obj/machinery/ore_silo/proc/silo_log(obj/machinery/M, action, amount, noun, list/mats)
 	if (!length(mats))
 		return
 	var/datum/ore_silo_log/entry = new(M, action, amount, noun, mats)
-
 	var/list/datum/ore_silo_log/logs = GLOB.silo_access_logs[REF(src)]
 	if(!LAZYLEN(logs))
 		GLOB.silo_access_logs[REF(src)] = logs = list(entry)
@@ -226,9 +236,21 @@ GLOBAL_LIST_EMPTY(silo_access_logs)
 	amount = _amount
 	noun = _noun
 	materials = mats.Copy()
-	for(var/each in materials)
-		materials[each] *= abs(_amount)
 	format()
+	var/list/data = list(
+		"machine_name" = machine_name,
+		"area_name" = AREACOORD(M),
+		"action" = action,
+		"amount" = abs(amount),
+		"noun" = noun,
+		"raw_materials" = get_raw_materials(""),
+		"direction" = amount < 0 ? "withdrawn" : "deposited",
+	)
+	GLOB.logger.Log(
+		LOG_CATEGORY_SILO,
+		"[machine_name] in \[[AREACOORD(M)]\] [action] [abs(amount)]x [noun] | [get_raw_materials("")]",
+		data,
+	)
 
 /datum/ore_silo_log/proc/merge(datum/ore_silo_log/other)
 	if (other == src || action != other.action || noun != other.noun)
@@ -245,13 +267,14 @@ GLOBAL_LIST_EMPTY(silo_access_logs)
 
 /datum/ore_silo_log/proc/format()
 	name = "[machine_name]: [action] [amount]x [noun]"
+	formatted = "([timestamp]) <b>[machine_name]</b> in [area_name]<br>[action] [abs(amount)]x [noun]<br> [get_raw_materials("")]"
 
-	var/list/msg = list("([timestamp]) <b>[machine_name]</b> in [area_name]<br>[action] [abs(amount)]x [noun]<br>")
-	var/sep = ""
+/datum/ore_silo_log/proc/get_raw_materials(separator)
+	var/list/msg = list()
 	for(var/key in materials)
 		var/datum/material/M = key
-		var/val = round(materials[key]) / MINERAL_MATERIAL_AMOUNT
-		msg += sep
-		sep = ", "
+		var/val = round(materials[key])
+		msg += separator
+		separator = ", "
 		msg += "[amount < 0 ? "-" : "+"][val] [M.name]"
-	formatted = msg.Join()
+	return msg.Join()