{"version":3,"sources":["../../src/cache/item.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;GAuBG;AAKH,OAAO,KAAK,EAAC,IAAI,EAAC,MAAM,cAAc,CAAC;AAGvC;;;;GAIG;AACH,qBAAa,SAAS,CAAC,KAAK;IACpB,IAAI,EAAE,KAAK,CAAC;IACnB,SAAgB,OAAO,EAAE,IAAI,CAAC;IAC9B,SAAgB,OAAO,EAAE,IAAI,CAAC;IAC9B,SAAgB,GAAG,EAAE,IAAI,CAAC;gBAEd,IAAI,EAAE,KAAK,EAAE,GAAG,CAAC,EAAE,MAAM;IAQrC;;;OAGG;IACI,OAAO,IAAI,OAAO;IAoBlB,MAAM,IAAI,IAAI;CAGrB","file":"item.d.ts","sourcesContent":["/**\n *\tMIT License\n *\n *\tCopyright (c) 2019 - 2022 Toreda, Inc.\n *\n *\tPermission is hereby granted, free of charge, to any person obtaining a copy\n *\tof this software and associated documentation files (the \"Software\"), to deal\n *\tin the Software without restriction, including without limitation the rights\n *\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n *\tcopies of the Software, and to permit persons to whom the Software is\n *\tfurnished to do so, subject to the following conditions:\n\n * \tThe above copyright notice and this permission notice shall be included in all\n * \tcopies or substantial portions of the Software.\n *\n * \tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n *\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n *\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * \tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n *\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n *\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n * \tSOFTWARE.\n *\n */\n\nimport {timeMake, timeNow} from '@toreda/time';\n\nimport {Defaults} from '../defaults';\nimport type {Time} from '@toreda/time';\nimport {numberValue} from '@toreda/strong-types';\n\n/**\n * Wraps generic cache items and stores meta data about the item.\n *\n * @category Cache\n */\nexport class CacheItem<ItemT> {\n\tpublic data: ItemT;\n\tpublic readonly created: Time;\n\tpublic readonly updated: Time;\n\tpublic readonly ttl: Time;\n\n\tconstructor(data: ItemT, ttl?: number) {\n\t\tthis.data = data;\n\n\t\tthis.created = timeNow();\n\t\tthis.updated = timeMake('s', 0);\n\t\tthis.ttl = timeMake('s', numberValue(ttl, Defaults.CacheItem.TTL));\n\t}\n\n\t/**\n\t * Check whether this item is expired.\n\t * @returns\n\t */\n\tpublic expired(): boolean {\n\t\tconst ttl = this.ttl();\n\n\t\t// Based on DNS conventions, items with 0 TTL don't expire until forcefully cleared.\n\t\tif (ttl === 0) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst now = timeNow();\n\t\tlet elapsed: Time | null;\n\n\t\tif (this.updated() > 0) {\n\t\t\telapsed = now.since(this.updated);\n\t\t} else {\n\t\t\telapsed = now.since(this.created);\n\t\t}\n\n\t\treturn elapsed === null || elapsed() >= ttl;\n\t}\n\n\tpublic update(): void {\n\t\tthis.updated.setNow();\n\t}\n}\n"]}