cannery/lib/cannery/activity_log.ex

440 lines
13 KiB
Elixir

defmodule Cannery.ActivityLog do
@moduledoc """
The ActivityLog context.
"""
import Ecto.Query, warn: false
alias Cannery.Ammo.{Pack, Type}
alias Cannery.{Accounts.User, ActivityLog.ShotRecord, Repo}
alias Ecto.{Multi, Queryable}
@type list_shot_records_option ::
{:search, String.t() | nil}
| {:class, Type.class() | :all | nil}
| {:pack_id, Pack.id() | nil}
@type list_shot_records_options :: [list_shot_records_option()]
@doc """
Returns the list of shot_records.
## Examples
iex> list_shot_records(%User{id: 123})
[%ShotRecord{}, ...]
iex> list_shot_records(%User{id: 123}, search: "cool")
[%ShotRecord{notes: "My cool shot record"}, ...]
iex> list_shot_records(%User{id: 123}, search: "cool", class: :rifle)
[%ShotRecord{notes: "Shot some rifle rounds"}, ...]
iex> list_shot_records(%User{id: 123}, pack_id: 456)
[%ShotRecord{pack_id: 456}, ...]
"""
@spec list_shot_records(User.t()) :: [ShotRecord.t()]
@spec list_shot_records(User.t(), list_shot_records_options()) :: [ShotRecord.t()]
def list_shot_records(%User{id: user_id}, opts \\ []) do
from(sr in ShotRecord,
as: :sr,
left_join: p in Pack,
as: :p,
on: sr.pack_id == p.id,
on: p.user_id == ^user_id,
left_join: t in Type,
as: :t,
on: p.type_id == t.id,
on: t.user_id == ^user_id,
where: sr.user_id == ^user_id,
distinct: sr.id
)
|> list_shot_records_search(Keyword.get(opts, :search))
|> list_shot_records_class(Keyword.get(opts, :class))
|> list_shot_records_pack_id(Keyword.get(opts, :pack_id))
|> Repo.all()
end
@spec list_shot_records_search(Queryable.t(), search :: String.t() | nil) ::
Queryable.t()
defp list_shot_records_search(query, search) when search in ["", nil], do: query
defp list_shot_records_search(query, search) when search |> is_binary() do
trimmed_search = String.trim(search)
query
|> where(
[sr: sr, p: p, t: t],
fragment(
"? @@ websearch_to_tsquery('english', ?)",
sr.search,
^trimmed_search
) or
fragment(
"? @@ websearch_to_tsquery('english', ?)",
p.search,
^trimmed_search
) or
fragment(
"? @@ websearch_to_tsquery('english', ?)",
t.search,
^trimmed_search
)
)
|> order_by([sr: sr], {
:desc,
fragment(
"ts_rank_cd(?, websearch_to_tsquery('english', ?), 4)",
sr.search,
^trimmed_search
)
})
end
@spec list_shot_records_class(Queryable.t(), Type.class() | :all | nil) :: Queryable.t()
defp list_shot_records_class(query, class) when class in [:rifle, :pistol, :shotgun],
do: query |> where([t: t], t.class == ^class)
defp list_shot_records_class(query, _all), do: query
@spec list_shot_records_pack_id(Queryable.t(), Pack.id() | nil) :: Queryable.t()
defp list_shot_records_pack_id(query, pack_id) when pack_id |> is_binary(),
do: query |> where([sr: sr], sr.pack_id == ^pack_id)
defp list_shot_records_pack_id(query, _all), do: query
@doc """
Returns a count of shot records.
## Examples
iex> get_shot_record_count!(%User{id: 123})
3
"""
@spec get_shot_record_count!(User.t()) :: integer()
def get_shot_record_count!(%User{id: user_id}) do
Repo.one(
from sr in ShotRecord,
where: sr.user_id == ^user_id,
select: count(sr.id),
distinct: true
) || 0
end
@doc """
Gets a single shot_record.
Raises `Ecto.NoResultsError` if the shot record does not exist.
## Examples
iex> get_shot_record!(123, %User{id: 123})
%ShotRecord{}
iex> get_shot_record!(456, %User{id: 123})
** (Ecto.NoResultsError)
"""
@spec get_shot_record!(ShotRecord.id(), User.t()) :: ShotRecord.t()
def get_shot_record!(id, %User{id: user_id}) do
Repo.one!(
from sr in ShotRecord,
where: sr.id == ^id,
where: sr.user_id == ^user_id,
order_by: sr.date
)
end
@doc """
Creates a shot_record.
## Examples
iex> create_shot_record(%{field: value}, %User{id: 123})
{:ok, %ShotRecord{}}
iex> create_shot_record(%{field: bad_value}, %User{id: 123})
{:error, %Ecto.Changeset{}}
"""
@spec create_shot_record(attrs :: map(), User.t(), Pack.t()) ::
{:ok, ShotRecord.t()} | {:error, ShotRecord.changeset() | nil}
def create_shot_record(attrs, user, pack) do
Multi.new()
|> Multi.insert(
:create_shot_record,
%ShotRecord{} |> ShotRecord.create_changeset(user, pack, attrs)
)
|> Multi.run(
:pack,
fn _repo, %{create_shot_record: %{pack_id: pack_id, user_id: user_id}} ->
pack =
Repo.one(
from p in Pack,
where: p.id == ^pack_id,
where: p.user_id == ^user_id
)
{:ok, pack}
end
)
|> Multi.update(
:update_pack,
fn %{create_shot_record: %{count: shot_record_count}, pack: %{count: pack_count}} ->
pack |> Pack.range_changeset(%{"count" => pack_count - shot_record_count})
end
)
|> Repo.transaction()
|> case do
{:ok, %{create_shot_record: shot_record}} -> {:ok, shot_record}
{:error, :create_shot_record, changeset, _changes_so_far} -> {:error, changeset}
{:error, _other_transaction, _value, _changes_so_far} -> {:error, nil}
end
end
@doc """
Updates a shot_record.
## Examples
iex> update_shot_record(shot_record, %{field: new_value}, %User{id: 123})
{:ok, %ShotRecord{}}
iex> update_shot_record(shot_record, %{field: bad_value}, %User{id: 123})
{:error, %Ecto.Changeset{}}
"""
@spec update_shot_record(ShotRecord.t(), attrs :: map(), User.t()) ::
{:ok, ShotRecord.t()} | {:error, ShotRecord.changeset() | nil}
def update_shot_record(
%ShotRecord{count: count, user_id: user_id} = shot_record,
attrs,
%User{id: user_id} = user
) do
Multi.new()
|> Multi.update(
:update_shot_record,
shot_record |> ShotRecord.update_changeset(user, attrs)
)
|> Multi.run(
:pack,
fn repo, %{update_shot_record: %{pack_id: pack_id, user_id: user_id}} ->
{:ok, repo.one(from p in Pack, where: p.id == ^pack_id and p.user_id == ^user_id)}
end
)
|> Multi.update(
:update_pack,
fn %{
update_shot_record: %{count: new_count},
pack: %{count: pack_count} = pack
} ->
shot_diff_to_add = new_count - count
new_pack_count = pack_count - shot_diff_to_add
pack |> Pack.range_changeset(%{"count" => new_pack_count})
end
)
|> Repo.transaction()
|> case do
{:ok, %{update_shot_record: shot_record}} -> {:ok, shot_record}
{:error, :update_shot_record, changeset, _changes_so_far} -> {:error, changeset}
{:error, _other_transaction, _value, _changes_so_far} -> {:error, nil}
end
end
@doc """
Deletes a shot_record.
## Examples
iex> delete_shot_record(shot_record, %User{id: 123})
{:ok, %ShotRecord{}}
iex> delete_shot_record(shot_record, %User{id: 123})
{:error, %Ecto.Changeset{}}
"""
@spec delete_shot_record(ShotRecord.t(), User.t()) ::
{:ok, ShotRecord.t()} | {:error, ShotRecord.changeset()}
def delete_shot_record(
%ShotRecord{user_id: user_id} = shot_record,
%User{id: user_id}
) do
Multi.new()
|> Multi.delete(:delete_shot_record, shot_record)
|> Multi.run(
:pack,
fn repo, %{delete_shot_record: %{pack_id: pack_id, user_id: user_id}} ->
{:ok, repo.one(from p in Pack, where: p.id == ^pack_id and p.user_id == ^user_id)}
end
)
|> Multi.update(
:update_pack,
fn %{
delete_shot_record: %{count: count},
pack: %{count: pack_count} = pack
} ->
new_pack_count = pack_count + count
pack |> Pack.range_changeset(%{"count" => new_pack_count})
end
)
|> Repo.transaction()
|> case do
{:ok, %{delete_shot_record: shot_record}} -> {:ok, shot_record}
{:error, :delete_shot_record, changeset, _changes_so_far} -> {:error, changeset}
{:error, _other_transaction, _value, _changes_so_far} -> {:error, nil}
end
end
@doc """
Returns the last entered shot record date for a pack
"""
@spec get_last_used_date(Pack.t(), User.t()) :: Date.t() | nil
def get_last_used_date(%Pack{id: pack_id} = pack, user) do
[pack]
|> get_last_used_dates(user)
|> Map.get(pack_id)
end
@doc """
Returns the last entered shot record date for a pack
"""
@spec get_last_used_dates([Pack.t()], User.t()) :: %{optional(Pack.id()) => Date.t()}
def get_last_used_dates(packs, %User{id: user_id}) do
pack_ids =
packs
|> Enum.map(fn %Pack{id: pack_id, user_id: ^user_id} -> pack_id end)
Repo.all(
from sr in ShotRecord,
where: sr.pack_id in ^pack_ids,
where: sr.user_id == ^user_id,
group_by: sr.pack_id,
select: {sr.pack_id, max(sr.date)}
)
|> Map.new()
end
@type get_used_count_option :: {:pack_id, Pack.id() | nil} | {:type_id, Type.id() | nil}
@type get_used_count_options :: [get_used_count_option()]
@doc """
Gets the total number of rounds shot for a type
Raises `Ecto.NoResultsError` if the type does not exist.
## Examples
iex> get_used_count(%User{id: 123}, type_id: 123)
35
iex> get_used_count(%User{id: 123}, pack_id: 456)
50
"""
@spec get_used_count(User.t(), get_used_count_options()) :: non_neg_integer()
def get_used_count(%User{id: user_id}, opts) do
from(sr in ShotRecord,
as: :sr,
left_join: p in Pack,
on: sr.pack_id == p.id,
on: p.user_id == ^user_id,
as: :p,
where: sr.user_id == ^user_id,
where: not (sr.count |> is_nil()),
select: sum(sr.count),
distinct: true
)
|> get_used_count_type_id(Keyword.get(opts, :type_id))
|> get_used_count_pack_id(Keyword.get(opts, :pack_id))
|> Repo.one() || 0
end
@spec get_used_count_pack_id(Queryable.t(), Pack.id() | nil) :: Queryable.t()
defp get_used_count_pack_id(query, pack_id) when pack_id |> is_binary() do
query |> where([sr: sr], sr.pack_id == ^pack_id)
end
defp get_used_count_pack_id(query, _nil), do: query
@spec get_used_count_type_id(Queryable.t(), Type.id() | nil) :: Queryable.t()
defp get_used_count_type_id(query, type_id) when type_id |> is_binary() do
query |> where([p: p], p.type_id == ^type_id)
end
defp get_used_count_type_id(query, _nil), do: query
@type get_grouped_used_counts_option ::
{:packs, [Pack.t()] | nil}
| {:types, [Type.t()] | nil}
| {:group_by, :type_id | :pack_id}
@type get_grouped_used_counts_options :: [get_grouped_used_counts_option()]
@doc """
Gets the total number of rounds shot for multiple types or packs
## Examples
iex> get_grouped_used_counts(
...> %User{id: 123},
...> group_by: :type_id,
...> types: [%Type{id: 456, user_id: 123}]
...> )
35
iex> get_grouped_used_counts(
...> %User{id: 123},
...> group_by: :pack_id,
...> packs: [%Pack{id: 456, user_id: 123}]
...> )
22
"""
@spec get_grouped_used_counts(User.t(), get_grouped_used_counts_options()) ::
%{optional(Type.id() | Pack.id()) => non_neg_integer()}
def get_grouped_used_counts(%User{id: user_id}, opts) do
from(p in Pack,
as: :p,
left_join: sr in ShotRecord,
on: p.id == sr.pack_id,
on: p.user_id == ^user_id,
as: :sr,
where: sr.user_id == ^user_id,
where: not (sr.count |> is_nil())
)
|> get_grouped_used_counts_group_by(Keyword.fetch!(opts, :group_by))
|> get_grouped_used_counts_types(Keyword.get(opts, :types))
|> get_grouped_used_counts_packs(Keyword.get(opts, :packs))
|> Repo.all()
|> Map.new()
end
@spec get_grouped_used_counts_group_by(Queryable.t(), :type_id | :pack_id) :: Queryable.t()
defp get_grouped_used_counts_group_by(query, :type_id) do
query
|> group_by([p: p], p.type_id)
|> select([sr: sr, p: p], {p.type_id, sum(sr.count)})
end
defp get_grouped_used_counts_group_by(query, :pack_id) do
query
|> group_by([sr: sr], sr.pack_id)
|> select([sr: sr], {sr.pack_id, sum(sr.count)})
end
@spec get_grouped_used_counts_types(Queryable.t(), [Type.t()] | nil) :: Queryable.t()
defp get_grouped_used_counts_types(query, types) when types |> is_list() do
type_ids = types |> Enum.map(fn %Type{id: type_id} -> type_id end)
query |> where([p: p], p.type_id in ^type_ids)
end
defp get_grouped_used_counts_types(query, _nil), do: query
@spec get_grouped_used_counts_packs(Queryable.t(), [Pack.t()] | nil) :: Queryable.t()
defp get_grouped_used_counts_packs(query, packs) when packs |> is_list() do
pack_ids = packs |> Enum.map(fn %Pack{id: pack_id} -> pack_id end)
query |> where([p: p], p.id in ^pack_ids)
end
defp get_grouped_used_counts_packs(query, _nil), do: query
end