main.zig


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const std = @import("std");
const print = std.debug.print;

const day01 = @import("src/day01.zig");
const day02 = @import("src/day02.zig");

const Day = enum { day01, day02 };

pub fn main() !void {
    if (std.os.argv.len != 3) {
        print("Usage: {s} <day> <part> < <input> \n", .{std.os.argv[0]});
        return;
    }

    const stdin = std.io.getStdIn();

    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    const allocator = gpa.allocator();
    defer {
        _ = gpa.deinit();
    }

    const stat = try stdin.stat();
    const buffer = try stdin.readToEndAlloc(allocator, stat.size);
    defer allocator.free(buffer);

    const args = try std.process.argsAlloc(allocator);
    defer std.process.argsFree(allocator, args);

    const day = std.meta.stringToEnum(Day, args[1]) orelse {
        print("Not valid day or day not yet implemented\n: {s}", .{args[1]});
        return;
    };

    try switch (day) {
        .day01 => day01.solve(args[2], buffer, allocator),
        .day02 => day02.solve(args[2], buffer),
    };
}