{"version":3,"sources":["../src/errors.ts","../src/utils.ts","../src/index.ts"],"sourcesContent":["export class ChronoBoxError extends Error {\n constructor(message: string) {\n super(message);\n this.name = \"ChronoBoxError\";\n }\n}\n","import { TimeUnit } from \"./enums\";\n\nexport const isValidTimeUnit = (unit: any): unit is TimeUnit =>\n unit === TimeUnit.MILLISECONDS ||\n unit === TimeUnit.SECONDS ||\n unit === TimeUnit.MINUTES ||\n unit === TimeUnit.HOURS ||\n unit === TimeUnit.DAYS ||\n unit === TimeUnit.WEEKS ||\n unit === TimeUnit.MONTHS ||\n unit === TimeUnit.YEARS;\n","import type { CustomFormat, DateComponents, DateInput } from \"./types.d.ts\";\n\nimport { ChronoBoxError } from \"./errors\";\nimport { isValidTimeUnit } from \"./utils\";\nimport { DateFormat, TimeUnit } from \"./enums\";\n\nexport class ChronoBox {\n private readonly date: Date;\n private readonly format: TFormat;\n\n constructor(date?: DateInput, format: TFormat = DateFormat.ISO as TFormat) {\n this.format = format;\n\n try {\n this.date = date ? new Date(date) : new Date();\n if (isNaN(this.date.getTime())) {\n throw new ChronoBoxError(\"Invalid date input\");\n }\n } catch (error) {\n throw new ChronoBoxError(\n `Failed to parse date: ${\n error instanceof Error ? error.message : \"Unknown error\"\n }`\n );\n }\n }\n\n /**\n * Add a specified amount of time units to the date\n */\n add(amount: number, unit: T): ChronoBox {\n const newDate = new Date(this.date);\n\n switch (unit) {\n case TimeUnit.MILLISECONDS:\n newDate.setMilliseconds(newDate.getMilliseconds() + amount);\n break;\n case TimeUnit.SECONDS:\n newDate.setSeconds(newDate.getSeconds() + amount);\n break;\n case TimeUnit.MINUTES:\n newDate.setMinutes(newDate.getMinutes() + amount);\n break;\n case TimeUnit.HOURS:\n newDate.setHours(newDate.getHours() + amount);\n break;\n case TimeUnit.DAYS:\n newDate.setDate(newDate.getDate() + amount);\n break;\n case TimeUnit.WEEKS:\n newDate.setDate(newDate.getDate() + amount * 7);\n break;\n case TimeUnit.MONTHS: {\n const dayOfMonth = newDate.getDate();\n newDate.setDate(1); // Temporarily set to the first of the month\n newDate.setMonth(newDate.getMonth() + amount);\n const maxDaysInNewMonth = new Date(\n newDate.getFullYear(),\n newDate.getMonth() + 1,\n 0\n ).getDate();\n newDate.setDate(Math.min(dayOfMonth, maxDaysInNewMonth));\n break;\n }\n case TimeUnit.YEARS: {\n const dayOfMonth = newDate.getDate();\n newDate.setDate(1); // Temporarily set to the first of the month\n newDate.setFullYear(newDate.getFullYear() + amount);\n const maxDaysInNewMonth = new Date(\n newDate.getFullYear(),\n newDate.getMonth() + 1,\n 0\n ).getDate();\n newDate.setDate(Math.min(dayOfMonth, maxDaysInNewMonth));\n break;\n }\n default:\n const _exhaustiveCheck: never = unit;\n throw new ChronoBoxError(`Unsupported time unit: ${unit}`);\n }\n\n return new ChronoBox(newDate, this.format);\n }\n\n /**\n * Subtract a specified amount of time units from the date\n */\n subtract(amount: number, unit: T): ChronoBox {\n return this.add(-amount, unit);\n }\n\n /**\n * Get the difference between two dates in the specified unit\n */\n diff(other: DateInput, unit: TimeUnit = TimeUnit.DAYS): number {\n const otherDate = new Date(other);\n const diffMs = this.date.getTime() - 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