Simon Hirsig
87 lines
2.6 KiB
Lua
87 lines
2.6 KiB
Lua
local DATABASE_VERSION = 0
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local private, public = {}, {}
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Aux.persistence = public
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aux_database = {}
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function public.on_load()
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perform_migration(aux_database)
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aux_database.version = DATABASE_VERSION
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end
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function private.get_dataset_key()
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local realm = GetCVar('realmName')
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local zone = GetMinimapZoneText()
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local faction
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-- TODO use UnitFactionGroup(unit) or race with auctioneer instead to work for all locales
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if zone == 'Gadgetzan' or zone == 'Everlook' or zone == 'Booty Bay' then
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faction = 'Neutral'
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else
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faction = UnitFactionGroup('player')
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end
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return realm..'|'..faction
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end
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function public.load_dataset()
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local dataset_key = private.get_dataset_key()
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aux_database[dataset_key] = aux_database[dataset_key] or {}
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return aux_database[dataset_key]
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end
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function load_snapshot()
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local dataset = load_dataset()
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local snapshot = Aux.util.set()
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snapshot.set_data(dataset.snapshot)
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return snapshot
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end
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function public.load_scan_records(item_key)
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local dataset = private.load_dataset()
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local serialized_records = private.deserialize(dataset[item_key] or '', ';')
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return Aux.util.map(serialized_records, function(serialized_record)
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local time, count, min_price, accumulated_price = private.deserialize(serialized_record, '#')
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return {
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time = time,
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count = count,
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min_price = min_price,
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accumulated_price = accumulated_price,
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}
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end)
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end
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function public.store_scan_record(item_key, record)
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local dataset = private.load_dataset()
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local serialized_record = private.serialize({ record.time, record.count, record.min_price, record.accumulated_price }, '#')
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local serialized_records = dataset[item_key] or ''
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serialized_records = serialized_records..(serialized_records == '' and '' or ';')..serialized_record
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dataset[item_key] = serialized_records
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end
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function private.serialize(data, separator)
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local data_string = ''
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for i, datum in ipairs(data) do
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data_string = data_string..(i == 1 and '' or separator)..datum
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end
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return data_string
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end
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function private.deserialize(data_string, separator)
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if data_string == '' then
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return {}
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end
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local data = {}
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while true do
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local start_index, _ = strfind(data_string, separator, 1, true)
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if start_index then
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tinsert(data, string.sub(data_string, 1, start_index - 1))
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data_string = string.sub(data_string, start_index + 1, strlen(data_string))
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else
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tinsert(data, string.sub(data_string, 1, strlen(data_string)))
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return data
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end
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end
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end
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