Sorts maps per the given sort_specs.

Examples of sort specs for flat data structures:

- implicit: [:dob, :name]
- mixed:    [:dob, desc: :name]
- explicit: [asc: :dob, desc: :name]

Examples of sort specs with a Date key for flat data structures:

- implicit: [{:dob, Date}, :name]
- mixed:    [{:dob, Date}, desc: :name]
- explicit: [asc: {:dob, Date}, desc: :name]

Examples of sort specs for nested data structures:

- implicit: [[:birth, :date], :name]
- mixed   : [[:birth, :date], desc: :name]
- explicit: [asc: [:birth, :date], desc: :name]

Examples of sort specs with a Date key for nested data structures:

- implicit: [{[:birth, :date], Date}, :name]
- mixed:    [{[:birth, :date], Date}, desc: :name]
- explicit: [asc: {[:birth, :date], Date}, desc: :name]

examples

Examples

iex> require MapSorter
iex> people = [
...>   %{name: "Mike", likes: "movies" , dob: "1992-04-15"},
...>   %{name: "Mary", likes: "travels", dob: "1992-04-15"},
...>   %{name: "Bill", likes: "karate" , dob: "1977-08-28"},
...>   %{name: "Joe" , likes: "boxing" , dob: "1977-08-28"},
...>   %{name: "Jill", likes: "cooking", dob: "1976-09-28"}
...> ]
iex> sort_specs = Tuple.to_list({:dob, {:desc, :likes}})
iex> sorted_people = %{
...>   explicit: MapSorter.sort(people, asc: :dob, desc: :likes),
...>   mixed:    MapSorter.sort(people, [:dob, desc: :likes]),
...>   runtime:  MapSorter.sort(people, sort_specs)
...> }
iex> sorted_people.explicit == sorted_people.mixed and
...> sorted_people.explicit == sorted_people.runtime and
...> sorted_people.explicit
[
  %{name: "Jill", likes: "cooking", dob: "1976-09-28"},
  %{name: "Bill", likes: "karate" , dob: "1977-08-28"},
  %{name: "Joe" , likes: "boxing" , dob: "1977-08-28"},
  %{name: "Mary", likes: "travels", dob: "1992-04-15"},
  %{name: "Mike", likes: "movies" , dob: "1992-04-15"}
]