Mercurial > games > semicongine

annotate semiconginev2/old/storage.nim @ 1219:c61658d2d227 compiletime-tests

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del: old test file
author sam <sam@basx.dev>
date Wed, 17 Jul 2024 21:03:30 +0700
parents 56781cc0fc7c
children
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1 import std/marshal
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2 import std/tables
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3 import std/strformat
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4 import std/paths
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5 import std/os
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6
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7 import ./thirdparty/db_connector/db_sqlite
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8
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9 import ./core
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10
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11 const STORAGE_NAME = Path("storage.db")
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12 const DEFAULT_KEY_VALUE_TABLE_NAME = "shelf"
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13
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14 type
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15 StorageType* = enum
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16 SystemStorage
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17 UserStorage
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18 # ? level storage type ?
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19
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20 var db: Table[StorageType, DbConn]
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21
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22 proc path(storageType: StorageType): Path =
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23 case storageType:
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24 of SystemStorage:
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25 Path(getAppDir()) / STORAGE_NAME
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26 of UserStorage:
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27 string(Path(getDataDir()) / Path(AppName())).createDir()
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28 Path(getDataDir()) / Path(AppName()) / STORAGE_NAME
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29
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30 proc ensureExists(storageType: StorageType) =
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31 if storageType in db:
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32 return
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33 db[storageType] = open(string(storageType.path), "", "", "")
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34
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35 proc ensureExists(storageType: StorageType, table: string) =
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36 storageType.ensureExists()
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37 db[storageType].exec(sql(&"""CREATE TABLE IF NOT EXISTS {table} (
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38 key TEXT NOT NULL UNIQUE,
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39 value TEXT NOT NULL
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40 )"""))
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41
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42 proc Store*[T](storageType: StorageType, key: string, value: T, table = DEFAULT_KEY_VALUE_TABLE_NAME) =
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43 storageType.ensureExists(table)
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44 db[storageType].exec(sql(&"""INSERT INTO {table} VALUES(?, ?)
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45 ON CONFLICT(key) DO UPDATE SET value=excluded.value
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46 """), key, $$value)
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47
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48 proc Load*[T](storageType: StorageType, key: string, default: T, table = DEFAULT_KEY_VALUE_TABLE_NAME): T =
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49 storageType.ensureExists(table)
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50 let dbResult = db[storageType].getValue(sql(&"""SELECT value FROM {table} WHERE key = ? """), key)
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51 if dbResult == "":
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52 return default
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53 return to[T](dbResult)
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54
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55 proc List*[T](storageType: StorageType, table = DEFAULT_KEY_VALUE_TABLE_NAME): seq[string] =
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56 storageType.ensureExists(table)
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57 for row in db[storageType].fastRows(sql(&"""SELECT key FROM {table}""")):
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58 result.add row[0]
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59
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60 proc Purge*(storageType: StorageType) =
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61 storageType.path().string.removeFile()