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Pure Elixir HL7 v2.x toolkit — schema-driven parsing, typed segments, message builder, MLLP transport
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lib/hl7v2/type/vh.ex
defmodule HL7v2.Type.VH do
@moduledoc """
Visiting Hours (VH) -- HL7v2 composite data type.
Specifies visiting hours for a location.
4 components:
1. Start Day Range (ID) -- Table 0267: SAT, SUN, MON, TUE, WED, THU, FRI
2. End Day Range (ID) -- Table 0267
3. Start Hour Range (TM) -- HHMM
4. End Hour Range (TM) -- HHMM
"""
@behaviour HL7v2.Type
alias HL7v2.Type
defstruct [:start_day_range, :end_day_range, :start_hour_range, :end_hour_range]
@type t :: %__MODULE__{
start_day_range: binary() | nil,
end_day_range: binary() | nil,
start_hour_range: binary() | nil,
end_hour_range: binary() | nil
}
@doc """
Parses a VH from a list of components.
## Examples
iex> HL7v2.Type.VH.parse(["MON", "FRI", "0800", "1700"])
%HL7v2.Type.VH{start_day_range: "MON", end_day_range: "FRI", start_hour_range: "0800", end_hour_range: "1700"}
iex> HL7v2.Type.VH.parse(["SAT", "SUN"])
%HL7v2.Type.VH{start_day_range: "SAT", end_day_range: "SUN"}
iex> HL7v2.Type.VH.parse([])
%HL7v2.Type.VH{}
"""
@spec parse(list()) :: t()
def parse(components) when is_list(components) do
%__MODULE__{
start_day_range: Type.get_component(components, 0),
end_day_range: Type.get_component(components, 1),
start_hour_range: Type.get_component(components, 2),
end_hour_range: Type.get_component(components, 3)
}
end
@doc """
Encodes a VH to a list of component strings.
## Examples
iex> HL7v2.Type.VH.encode(%HL7v2.Type.VH{start_day_range: "MON", end_day_range: "FRI", start_hour_range: "0800", end_hour_range: "1700"})
["MON", "FRI", "0800", "1700"]
iex> HL7v2.Type.VH.encode(nil)
[]
"""
@spec encode(t() | nil) :: list()
def encode(nil), do: []
def encode(%__MODULE__{} = vh) do
[
vh.start_day_range || "",
vh.end_day_range || "",
vh.start_hour_range || "",
vh.end_hour_range || ""
]
|> Type.trim_trailing()
end
end