const std = @import("std");
const utils = @import("utils.zig");

pub const DateTime = @import("DateTime.zig");
pub const Date = @import("Date.zig");
pub const Time = @import("Time.zig");
pub const Zone = @import("Zone.zig");

pub const Weekday = enum(u3) {
    sunday = 0,
    monday,
    tuesday,
    wednesday,
    thursday,
    friday,
    saturday,

    pub fn name(self: Weekday) []const u8 {
        return utils.titleCase(Weekday, self);
    }

    pub fn short(self: Weekday) []const u8 {
        return self.name()[0..3];
    }
};

pub const Month = enum(u4) {
    january = 1,
    february = 2,
    march = 3,
    april = 4,
    may = 5,
    june = 6,
    july = 7,
    august = 8,
    september = 9,
    october = 10,
    november = 11,
    december = 12,

    /// Convert int to Month, months are 1 indexed.
    /// invalid options will set month to .invalid.
    pub fn fromInt(int: u8) error{InvalidMonth}!Month {
        if (int < 1 or int > 12) return error.InvalidMonth;
        return @enumFromInt(int);
    }

    pub fn name(self: Month) []const u8 {
        return utils.titleCase(Month, self);
    }

    pub fn short(self: Month) []const u8 {
        return self.name()[0..3];
    }
};

pub const Format = enum {
    iso8601,
    rfc3339,
};

pub const Error = error{
    InvalidDate,
    InvalidMonth,
    InvalidTime,
    InvalidDateTime,
    InvalidCharacter,
    UnexpectedToken,
    OutsideJulianPeriod,
    NonUTCNotSupported,
    NotImplemented,
};

pub const Precision = enum {
    seconds,
    milliseconds,
    microseconds,
    nanoseconds,
};

test {
    std.testing.refAllDecls(@This());
}