basic admin endgame view and add

This commit is contained in:
2026-06-22 20:43:09 +02:00
parent e955e40930
commit 006a2ca1c5
82 changed files with 2031 additions and 2 deletions
+7
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.bg-boardwhite {
background-color: #f2f5f3; /* light square */
}
.bg-boardblack {
background-color: #71828f; /* dark square */
}
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@@ -8,6 +8,7 @@
@import "../node_modules/chessground/assets/chessground.brown.css";
@import "../node_modules/chessground/assets/chessground.cburnett.css";
@import "./_board.css";
@import "./_promotion.css";
@source "../css";
+3 -1
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@@ -15,7 +15,9 @@ defmodule Chesstrainer.Application do
# Start a worker by calling: Chesstrainer.Worker.start_link(arg)
# {Chesstrainer.Worker, arg},
# Start to serve requests, typically the last entry
ChesstrainerWeb.Endpoint
ChesstrainerWeb.Endpoint,
{Registry, keys: :unique, name: Chesstrainer.CacheRegistry},
{Chesstrainer.Cache, :tablebase}
]
# See https://elixir.hexdocs.pm/Supervisor.html
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defmodule Chesstrainer.Cache do
@moduledoc """
Generic LRU cache.
## Examples
iex> start_link(:tablebase)
"""
use GenServer
@max_size 1000
@backup_interval_minutes 60
def start_link(table), do: GenServer.start_link(__MODULE__, table, name: via_tuple(table))
def put(table, key, value), do: GenServer.call(via_tuple(table), {:put, key, value})
def get(table, key), do: GenServer.call(via_tuple(table), {:get, key})
def delete(table, key), do: GenServer.call(via_tuple(table), {:delete, key})
def backup(table), do: GenServer.cast(via_tuple(table), :backup)
def show(table) do
ensure_table(table)
:ets.tab2list(table)
end
def size(table), do: :ets.info(table, :size)
@impl true
def init(table) do
{:ok, table, {:continue, :restore_and_backup}}
end
@impl true
def handle_continue(:restore_and_backup, table) do
create_table(table)
__MODULE__.Persist.restore(table)
:timer.send_interval(:timer.minutes(@backup_interval_minutes), :backup)
{:noreply, table}
end
@impl true
def handle_call({:put, key, value}, _from, table) do
ensure_table(table)
timestamp = System.system_time(:millisecond)
:ets.insert(table, {key, value, timestamp})
GenServer.cast(self(), :maybe_evict)
{:reply, :ok, table}
end
@impl true
def handle_call({:get, key}, _from, table) do
ensure_table(table)
case :ets.lookup(table, key) do
[{^key, value, _old_timestamp}] ->
timestamp = System.system_time(:millisecond)
:ets.insert(table, {key, value, timestamp})
{:reply, {:ok, value}, table}
[] ->
{:reply, :error, table}
end
end
@impl true
def handle_call({:delete, key}, _from, table) do
:ets.delete(table, key)
{:reply, :ok, table}
end
@impl true
def handle_cast(:maybe_evict, table) do
__MODULE__.Evict.maybe_evict_oldest(table, @max_size)
{:noreply, table}
end
@impl true
def handle_cast(:backup, table) do
__MODULE__.Persist.backup(table)
{:noreply, table}
end
@impl true
def handle_info(:backup, table) do
GenServer.cast(self(), :backup)
{:noreply, table}
end
defp via_tuple(table), do: {:via, Registry, {Chesstrainer.CacheRegistry, table}}
defp ensure_table(table) do
case :ets.whereis(table) do
:undefined -> create_table(table)
_ -> :ok
end
end
defp create_table(table), do: :ets.new(table, [:named_table, :public, :set])
end
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defmodule Chesstrainer.Cache.Evict do
@moduledoc """
Eviction functions for LRU cache
"""
# O(n) time, not efficient
def maybe_evict_oldest(table, max_size) do
if :ets.info(table, :size) > max_size do
case find_oldest_entry(table) do
{oldest_key, _} -> :ets.delete(table, oldest_key)
_ -> :ok
end
end
end
defp find_oldest_entry(table) do
:ets.foldl(
fn {k, _v, t}, acc ->
case acc do
nil -> {k, t}
{_, oldest_t} when t < oldest_t -> {k, t}
_ -> acc
end
end,
nil,
table
)
end
end
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defmodule Chesstrainer.Cache.Persist do
@moduledoc """
Persistance for cache. Backup and restore functions.
"""
@backup_path "priv/static/backups"
def backup(table) do
File.mkdir_p!(@backup_path)
filename = Path.join(@backup_path, "#{table}.det") |> String.to_charlist()
{:ok, dets_table} = :dets.open_file(filename, type: :set)
:ets.to_dets(table, dets_table)
:dets.sync(dets_table)
end
def restore(table) do
File.mkdir_p!(@backup_path)
filename = Path.join(@backup_path, "#{table}.det") |> String.to_charlist()
case :dets.open_file(table, file: filename, type: :set) do
{:ok, ^table} ->
:dets.foldl(fn entry, _ -> :ets.insert(table, entry) end, :ok, table)
:dets.close(table)
{:error, _} ->
:ok
end
end
end
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defmodule Chesstrainer.Endgames do
@moduledoc """
The Endgames context.
"""
import Ecto.Query, warn: false
alias Chesstrainer.Repo
alias Chesstrainer.Endgames.Endgame
@doc """
Returns the list of endgames.
## Examples
iex> list_endgames()
[%Endgame{}, ...]
"""
def list_endgames do
Repo.all(Endgame)
end
@doc """
Gets a single endgame.
Raises `Ecto.NoResultsError` if the Endgame does not exist.
## Examples
iex> get_endgame!(123)
%Endgame{}
iex> get_endgame!(456)
** (Ecto.NoResultsError)
"""
def get_endgame!(id), do: Repo.get!(Endgame, id)
@doc """
Creates a endgame.
## Examples
iex> create_endgame(%{field: value})
{:ok, %Endgame{}}
iex> create_endgame(%{field: bad_value})
{:error, %Ecto.Changeset{}}
"""
def create_endgame(attrs) do
%Endgame{}
|> Endgame.changeset(attrs)
|> Repo.insert()
end
@doc """
Updates a endgame.
## Examples
iex> update_endgame(endgame, %{field: new_value})
{:ok, %Endgame{}}
iex> update_endgame(endgame, %{field: bad_value})
{:error, %Ecto.Changeset{}}
"""
def update_endgame(%Endgame{} = endgame, attrs) do
# ignore fen on update
attrs = Map.delete(attrs, "fen")
endgame
|> Endgame.changeset(attrs)
|> Repo.update()
end
@doc """
Deletes a endgame.
## Examples
iex> delete_endgame(endgame)
{:ok, %Endgame{}}
iex> delete_endgame(endgame)
{:error, %Ecto.Changeset{}}
"""
def delete_endgame(%Endgame{} = endgame) do
Repo.delete(endgame)
end
@doc """
Returns an `%Ecto.Changeset{}` for tracking endgame changes.
## Examples
iex> change_endgame(endgame)
%Ecto.Changeset{data: %Endgame{}}
"""
def change_endgame(%Endgame{} = endgame, attrs \\ %{}) do
Endgame.changeset(endgame, attrs)
end
def add_tag(endgame, tag) do
endgame
|> Repo.preload(:tags)
|> Ecto.Changeset.change()
|> Ecto.Changeset.put_assoc(:tags, [tag | endgame.tags])
|> Repo.update()
end
def remove_tag(endgame, tag) do
endgame
|> Repo.preload(:tags)
|> Ecto.Changeset.change()
|> Ecto.Changeset.put_assoc(:tags, endgame.tags -- [tag])
|> Repo.update()
end
end
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defmodule Chesstrainer.Endgames.Endgame do
@moduledoc """
A singular endgame entry
"""
use Ecto.Schema
import Ecto.Changeset
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "endgames" do
field :fen, :string
field :color, Ecto.Enum, values: [:white, :black]
field :key, :string
field :message, :string
field :notes, :string
field :result, Ecto.Enum, values: [:win, :loss, :draw]
field :rating, :integer
field :rating_deviation, :integer
field :times_attempted, :integer
field :times_solved, :integer
many_to_many :tags, Chesstrainer.Tags.Tag,
join_through: "endgames_tags",
on_replace: :delete
timestamps(type: :utc_datetime)
end
@doc false
def changeset(endgame, attrs) do
endgame
|> cast(attrs, [:fen, :key, :message, :notes, :result, :rating, :color])
|> validate_required([:fen, :color], message: "Invalid FEN")
|> validate_required([:key, :result, :rating])
|> validate_format(:key, ~r/^(?=.{5,10}$)KQ*R*[NB]*P*\sv\sKQ*R*[NB]*P*$/,
message: "Key must follow pattern KQ.. v KQR.., max pieces 7"
)
|> unique_constraint(:fen, message: "FEN already exists")
end
end
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defmodule Chesstrainer.Endgames.Tablebase do
@moduledoc """
All endgame tablebase related functions.
"""
alias Chesstrainer.Endgames.Tablebase
@type result :: :win | :draw | :loss | :unknown
@type t :: %__MODULE__{
category: result,
checkmate: boolean(),
dtc: integer() | nil,
dtm: integer() | nil,
dtw: integer() | nil,
dtz: integer() | nil,
insufficient_material: boolean(),
moves: [Tablebase.Move.t()]
}
defstruct category: nil,
checkmate: false,
dtc: nil,
dtm: nil,
dtw: nil,
dtz: nil,
insufficient_material: false,
moves: nil
@spec new(String.t()) ::
{:ok, t()}
| {:cooldown, non_neg_integer()}
| {:error, :invalid_endgame}
| {:error, term()}
def new(fen) do
case Tablebase.Cache.get(fen) do
{_fen, tablebase} ->
{:cache, tablebase}
_ ->
case Tablebase.Parser.from_fen(fen) do
{:error, reason} ->
{:error, reason}
{:cooldown, remaining_ms} ->
{:cooldown, remaining_ms}
{:ok, tablebase} when tablebase.category == :unknown ->
{:error, :invalid_endgame}
{:ok, tablebase} ->
Tablebase.Cache.put(fen, tablebase)
{:ok, tablebase}
end
end
end
end
@@ -0,0 +1,17 @@
defmodule Chesstrainer.Endgames.Tablebase.Cache do
@moduledoc """
A cache of tablebases by FEN.
"""
alias Chesstrainer.Cache
@table :tablebase
def put(fen, tablebase), do: Cache.put(@table, fen, tablebase)
def get(fen), do: Cache.get(@table, fen)
def delete(fen), do: Cache.delete(@table, fen)
def show, do: Cache.show(@table)
def size, do: Cache.size(@table)
end
@@ -0,0 +1,41 @@
defmodule Chesstrainer.Endgames.Tablebase.Move do
@moduledoc """
Moves struct for the tablebase
"""
@type result :: :win | :draw | :loss
@type t :: %__MODULE__{
category: result,
checkmate: boolean(),
conversion: boolean(),
dtc: integer() | nil,
dtm: integer() | nil,
dtw: integer() | nil,
dtz: integer() | nil,
precise_dtz: integer() | nil,
san: String.t() | nil,
stalemate: boolean(),
uci: String.t() | nil,
variant_loss: boolean(),
variant_win: boolean(),
zeroing: boolean(),
insufficient_material: boolean()
}
defstruct category: nil,
checkmate: false,
conversion: false,
dtc: nil,
dtm: nil,
dtw: nil,
dtz: nil,
precise_dtz: nil,
san: nil,
stalemate: false,
uci: nil,
variant_loss: false,
variant_win: false,
zeroing: false,
insufficient_material: false
end
@@ -0,0 +1,106 @@
defmodule Chesstrainer.Endgames.Tablebase.Parser do
@moduledoc """
Fetch and parse tablebase data to fit the tablebase struct
Lichess tablebase response from FEN string.
https://lichess.org/api#tag/tablebase
FEN must have spaces replaced by underscores to satisfy the Lichess API.
"""
import Chesstrainer.Ratelimiters
alias Chesstrainer.Endgames.Tablebase
@lichess_tablebase_url "http://tablebase.lichess.ovh/standard?fen="
@spec from_fen(String.t()) ::
{:ok, Tablebase.t()} | {:cooldown, non_neg_integer()} | {:error, term()}
def from_fen(fen) do
case lichess_check_cooldown() do
{:ok, 0} -> tablebase_response(fen)
{:cooldown, remaining_ms} -> {:cooldown, remaining_ms}
end
end
@spec tablebase_response(String.t()) :: {:ok, Tablebase.t()} | {:error, term()}
defp tablebase_response(fen) do
response =
fen
|> sanitise_fen()
|> build_request_string()
|> Req.get()
|> parse_response()
case response do
{:ok, body} -> from_map(body)
{:error, reason} -> {:error, reason}
end
end
# exposed for testing
def from_map(map) do
{:ok,
%Tablebase{
category: map["category"] |> String.to_atom(),
checkmate: map["checkmate"],
dtc: map["dtc"],
dtm: map["dtm"],
dtw: map["dtw"],
dtz: map["dtz"],
insufficient_material: map["insufficient_material"],
moves: Enum.map(map["moves"], &moves_from_map/1)
}}
end
defp moves_from_map(map) do
%Tablebase.Move{
category: map["category"] |> String.to_atom(),
checkmate: map["checkmate"],
conversion: map["conversion"],
dtc: map["dtc"],
dtm: map["dtm"],
dtw: map["dtw"],
dtz: map["dtz"],
insufficient_material: map["insufficient_material"],
precise_dtz: map["precise_dtz"],
san: map["san"],
stalemate: map["stalemate"],
uci: map["uci"],
variant_loss: map["variant_loss"],
variant_win: map["variant_win"],
zeroing: map["zeroing"]
}
end
defp parse_response(response) do
case response do
# Success
{:ok, %Req.Response{status: 200, body: body}} ->
{:ok, body}
# Client errors
{:ok, %Req.Response{status: status, body: body}} when status in 400..499 ->
{:error, {:client_error, status, body}}
# Rate limiting
{:ok, %Req.Response{status: 429, body: body}} ->
lichess_add_cooldown()
{:error, {:too_many_requests, 429, body}}
# Server errors
{:ok, %Req.Response{status: status, body: body}} when status in 500..599 ->
{:error, {:server_error, status, body}}
# Catchall for other status codes
{:ok, %Req.Response{status: status, body: body}} ->
{:error, {:http_error, status, body}}
# Network / clientside failure
{:error, reason} ->
{:error, reason}
end
end
defp sanitise_fen(fen), do: String.replace(fen, " ", "_")
defp build_request_string(fen), do: "#{@lichess_tablebase_url}#{fen}"
end
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defmodule Chesstrainer.FEN do
@spec color_from_fen(String.t()) :: :white | :black | nil
def color_from_fen(fen) do
fen
|> String.split(" ")
|> Enum.at(1)
|> color_initial_to_color_atom()
end
defp color_initial_to_color_atom("b"), do: :black
defp color_initial_to_color_atom("w"), do: :white
defp color_initial_to_color_atom(_), do: nil
end
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defmodule Chesstrainer.Game do
@moduledoc """
Game related functions
"""
alias Chesstrainer.Endgames
@type game_type :: :endgame
@type square :: {atom(), pos_integer()}
@type move :: {square, square}
@type colors :: :white | :black
@type game_state :: :continue | :loss | :draw
@type result :: :win | :draw | :loss
@type t :: %__MODULE__{
player_color: colors,
board: map(),
active_color: colors,
castling: list(),
en_passant: term() | nil,
moves: list(),
halfmove_clock: non_neg_integer(),
fullmove_clock: non_neg_integer(),
captures: list(),
check: term() | nil,
result: result,
pgn: String.t() | nil,
orientation: colors,
move_from_square: square,
move_to_square: square,
game_type: game_type,
fen: String.t(),
tablebase: term(),
game_state: game_state
}
defstruct board: %{},
player_color: :white,
active_color: :white,
castling: [],
en_passant: nil,
moves: [],
halfmove_clock: 0,
fullmove_clock: 0,
captures: [],
check: nil,
result: nil,
pgn: nil,
orientation: :white,
move_from_square: nil,
move_to_square: nil,
game_type: nil,
fen: nil,
tablebase: nil,
game_state: :continue
@doc """
Builds a `%ChessTrainer.Game{}` from a FEN string.
On success, returns `{:ok, game}` with the parsed board state.
If the FEN string is invalid, `Chex.Parser.FEN.parse/1` raises a
`MatchError`. This function rescues that exception and returns
`{:error, :invalid_fen, game}`, where `game` is a fallback position
containing only kings.
This is a bad implementation in the Chex libary and should be fixed at our fork:
https://github.com/therealowenrees/chex
We should return something like{:ok, game} | {:error | :invalid_fen}
## Examples
iex> ChessTrainer.Game.game_from_fen("valid fen", :endgame)
{:ok, %ChessTrainer.Game{}}
iex> ChessTrainer.Game.game_from_fen("invalid fen", :endgame)
{:error, :invalid_fen, %ChessTrainer.Game{}}
"""
@dialyzer {:nowarn_function, game_from_fen: 2}
@spec game_from_fen(String.t(), game_type()) :: {:ok, t()} | {:error, :invalid_fen, t()}
def game_from_fen(fen, game_type) do
try do
{:ok, %Chex.Game{} = chex_game} = Chex.Parser.FEN.parse(fen)
game = %__MODULE__{
board: chex_game.board,
player_color: chex_game.active_color,
active_color: chex_game.active_color,
castling: chex_game.castling,
en_passant: chex_game.en_passant,
moves: chex_game.moves,
halfmove_clock: chex_game.halfmove_clock,
fullmove_clock: chex_game.fullmove_clock,
captures: chex_game.captures,
check: chex_game.check,
result: chex_game.result,
pgn: chex_game.pgn,
orientation: chex_game.active_color,
move_from_square: nil,
move_to_square: nil,
game_type: game_type,
fen: fen,
game_state: :continue,
tablebase:
if game_type === :endgame do
Endgames.Tablebase.new(fen)
else
nil
end
}
{:ok, game}
rescue
# if a MatchError error is raised, then return a game with only kings on the board
MatchError ->
game = %__MODULE__{
board: %{
{:e, 1} => {:king, :white, {:e, 1}},
{:e, 8} => {:king, :black, {:e, 8}}
},
player_color: :white,
active_color: :white,
castling: [],
en_passant: nil,
moves: [],
halfmove_clock: 0,
fullmove_clock: 0,
captures: nil,
check: nil,
result: :draw,
pgn: nil,
orientation: :white,
move_from_square: nil,
move_to_square: nil,
game_type: :endgame,
fen: "4k3/8/8/8/8/8/8/4K3 w - - 0 1",
game_state: :draw,
tablebase: nil
}
{:error, :invalid_fen, game}
end
end
end
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defmodule Chesstrainer.Ratelimiters do
@moduledoc """
Generic rate limiter for external APIs (e.g., Lichess).
This module exposes convenience functions for each external API
that delegate to their specific rate limiter implementation.
## Examples
iex> ChessTrainer.Ratelimiters.lichess_reset_cooldown()
true
iex> ChessTrainer.Ratelimiters.lichess_check_cooldown()
{:ok, 0}
iex> ChessTrainer.Ratelimiters.lichess_add_cooldown()
true
"""
alias Chesstrainer.Ratelimiters.Lichess
@doc """
Adds a cooldown entry for the Lichess API.
This sets the cooldown period (e.g. 60 seconds) starting from now.
Useful when a `429 Too Many Requests` response is received.
"""
@spec lichess_add_cooldown() :: boolean()
def lichess_add_cooldown, do: Lichess.add_cooldown()
@doc """
Resets the cooldown for the Lichess API.
This clears any existing cooldown, allowing requests immediately.
"""
@spec lichess_reset_cooldown() :: boolean()
def lichess_reset_cooldown, do: Lichess.reset_cooldown()
@doc """
Checks whether the Lichess API is currently under cooldown.
Returns:
* `{:ok, 0}` if no cooldown is active
* `{:cooldown, remaining_ms}` if still cooling down, with the remaining time in milliseconds
"""
@spec lichess_check_cooldown() :: {:ok, non_neg_integer} | {:cooldown, non_neg_integer}
def lichess_check_cooldown, do: Lichess.check_cooldown()
end
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defmodule Chesstrainer.Ratelimiters.Lichess do
@moduledoc """
Global rate limiter for 429 response codes from the Lichess API.
"""
@cooldown_seconds 60
@table :lichess_cooldown
def add_cooldown do
ensure_table()
insert_cooldown()
end
def reset_cooldown do
ensure_table()
:ets.insert(@table, {:until, nil})
end
def check_cooldown do
ensure_table()
current_ms = System.system_time(:millisecond)
case :ets.lookup(@table, :until) do
[{:until, nil}] ->
{:ok, 0}
[{:until, until_ms}] ->
remaining = until_ms - current_ms
if remaining <= 0 do
reset_cooldown()
{:ok, 0}
else
{:cooldown, remaining}
end
end
end
defp create do
:ets.new(@table, [:named_table, :public, :set])
:ets.insert(@table, {:until, nil})
end
defp ensure_table do
case :ets.whereis(@table) do
:undefined -> create()
_ -> :ok
end
end
defp insert_cooldown do
until_ms = System.system_time(:millisecond) + @cooldown_seconds * 1000
:ets.insert(@table, {:until, until_ms})
end
end
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defmodule Chesstrainer.Tags do
@moduledoc """
The Tags context.
"""
import Ecto.Query, warn: false
alias Chesstrainer.Repo
alias Chesstrainer.Tags.Tag
@doc """
Returns the list of tags.
## Examples
iex> list_tags()
[%Tag{}, ...]
"""
def list_tags do
Repo.all(Tag)
end
@doc """
Gets a single tag.
Raises `Ecto.NoResultsError` if the Tag does not exist.
## Examples
iex> get_tag!(123)
%Tag{}
iex> get_tag!(456)
** (Ecto.NoResultsError)
"""
def get_tag!(id), do: Repo.get!(Tag, id)
@doc """
Creates a tag.
## Examples
iex> create_tag(%{field: value})
{:ok, %Tag{}}
iex> create_tag(%{field: bad_value})
{:error, %Ecto.Changeset{}}
"""
def create_tag(attrs) do
%Tag{}
|> Tag.changeset(attrs)
|> Repo.insert()
end
@doc """
Updates a tag.
## Examples
iex> update_tag(tag, %{field: new_value})
{:ok, %Tag{}}
iex> update_tag(tag, %{field: bad_value})
{:error, %Ecto.Changeset{}}
"""
def update_tag(%Tag{} = tag, attrs) do
tag
|> Tag.changeset(attrs)
|> Repo.update()
end
@doc """
Deletes a tag.
## Examples
iex> delete_tag(tag)
{:ok, %Tag{}}
iex> delete_tag(tag)
{:error, %Ecto.Changeset{}}
"""
def delete_tag(%Tag{} = tag) do
Repo.delete(tag)
end
@doc """
Returns an `%Ecto.Changeset{}` for tracking tag changes.
## Examples
iex> change_tag(tag)
%Ecto.Changeset{data: %Tag{}}
"""
def change_tag(%Tag{} = tag, attrs \\ %{}) do
Tag.changeset(tag, attrs)
end
end
+19
View File
@@ -0,0 +1,19 @@
defmodule Chesstrainer.Tags.Tag do
use Ecto.Schema
import Ecto.Changeset
schema "tags" do
field :name, :string
field :category, Ecto.Enum, values: [endgame: "endgame", opening: "opening", tactic: "tactic"]
timestamps(type: :utc_datetime)
end
@doc false
def changeset(tag, attrs) do
tag
|> cast(attrs, [:name, :category])
|> validate_required([:name, :category])
|> unique_constraint(:name)
end
end
@@ -0,0 +1,55 @@
defmodule ChesstrainerWeb.Board.BoardComponent do
@moduledoc """
Chess board component
"""
use Phoenix.Component
import ChesstrainerWeb.Board.SquareComponent
attr :game, :map, required: true
attr :myself, :any, required: true
def board(assigns) do
files_list = [:a, :b, :c, :d, :e, :f, :g, :h]
assigns =
assigns
|> assign(:files_list, files_list)
|> assign(
:files,
case assigns.game.orientation do
:white -> files_list
:black -> Enum.reverse(files_list)
end
)
|> assign(
:ranks,
case assigns.game.orientation do
:white -> Enum.reverse(1..8)
:black -> 1..8
end
)
~H"""
<div class="w-[388px] m-auto left-0 right-0 mt-6">
<div class="border border-2 border-zinc-700 grid grid-rows-8 grid-cols-8">
<%= for rank <- @ranks do %>
<%= for file <- @files do %>
<% square = {file, rank} %>
<% piece = Map.get(@game.board, square) %>
<.square
file={file}
rank={rank}
piece={piece}
files_list={@files_list}
move_from_square={@game.move_from_square}
myself={@myself}
/>
<% end %>
<% end %>
</div>
</div>
"""
end
end
@@ -0,0 +1,33 @@
defmodule ChesstrainerWeb.Board.PieceComponent do
@moduledoc """
Chess pieces component
"""
use Phoenix.Component
attr :piece, :any, required: true
attr :class, :string, default: ""
def piece(assigns) do
assigns = assign(assigns, :path, piece_path(assigns.piece))
~H"""
<%= if @path do %>
<img src={@path} class={@class} />
<% end %>
"""
end
def piece_path({:king, :white, _square}), do: "/images/pieces/white/king.svg"
def piece_path({:queen, :white, _square}), do: "/images/pieces/white/queen.svg"
def piece_path({:rook, :white, _square}), do: "/images/pieces/white/rook.svg"
def piece_path({:bishop, :white, _square}), do: "/images/pieces/white/bishop.svg"
def piece_path({:knight, :white, _square}), do: "/images/pieces/white/knight.svg"
def piece_path({:pawn, :white, _square}), do: "/images/pieces/white/pawn.svg"
def piece_path({:king, :black, _square}), do: "/images/pieces/black/king.svg"
def piece_path({:queen, :black, _square}), do: "/images/pieces/black/queen.svg"
def piece_path({:rook, :black, _square}), do: "/images/pieces/black/rook.svg"
def piece_path({:bishop, :black, _square}), do: "/images/pieces/black/bishop.svg"
def piece_path({:knight, :black, _square}), do: "/images/pieces/black/knight.svg"
def piece_path({:pawn, :black, _square}), do: "/images/pieces/black/pawn.svg"
def piece_path(_), do: nil
end
@@ -0,0 +1,48 @@
defmodule ChesstrainerWeb.Board.SquareComponent do
@moduledoc """
Renders a single chess square with optional piece and highlighting.
"""
use Phoenix.Component
import ChesstrainerWeb.Board.PieceComponent
attr :file, :atom, required: true
attr :rank, :integer, required: true
attr :piece, :any, default: nil
attr :files_list, :list, required: true
attr :move_from_square, :any, default: nil
attr :myself, :any, required: true
def square(assigns) do
current_square = {assigns.file, assigns.rank}
assigns =
assigns
|> assign(:highlight_square, current_square === assigns.move_from_square)
~H"""
<div
class={[
"w-12 h-12 flex items-center justify-center",
background(
Enum.find_index(@files_list, fn f -> f == @file end),
@rank - 1
),
highlight_square(@highlight_square)
]}
phx-click="square-click"
phx-value-file={@file}
phx-value-rank={@rank}
phx-value-type="move"
phx-target={@myself}
>
<.piece piece={@piece} class="w-10 h-10" />
</div>
"""
end
def background(file_idx, rank_idx) when rem(file_idx + rank_idx, 2) != 0, do: "bg-boardwhite"
def background(_, _), do: "bg-boardblack"
def highlight_square(true), do: "ring-inset ring-2 ring-yellow-400"
def highlight_square(false), do: ""
end
@@ -0,0 +1,212 @@
defmodule ChesstrainerWeb.EndgameLive.Form do
use ChesstrainerWeb, :live_view
alias Chesstrainer.Repo
alias Chesstrainer.Tags
alias Chesstrainer.FEN
alias Chesstrainer.Endgames
alias Chesstrainer.Endgames.Endgame
@impl true
def render(assigns) do
~H"""
<Layouts.app flash={@flash}>
<.header>
{@page_title}
<:subtitle>Use this form to manage endgame records in your database.</:subtitle>
</.header>
<.form for={@form} id="endgame-form" phx-change="validate" phx-submit="save">
<.input field={@form[:fen]} type="text" label="Fen" disabled={@live_action == :edit} />
<.input field={@form[:color]} type="text" label="Color" disabled />
<.input field={@form[:key]} type="text" label="Key" />
<.input field={@form[:rating]} type="number" label="Rating" />
<!-- ✅ TAG SELECTOR -->
<div class="field">
<label>Tags</label>
<!-- Search box -->
<input
type="text"
name="tag_search"
value={@tag_query}
phx-change="search_tags"
autocomplete="off"
/>
<!-- Search results -->
<ul class="tag-results">
<%= for tag <- @tag_results do %>
<li phx-click="add_tag" phx-value-id={tag.id}>
{tag.name}
</li>
<% end %>
<%= if @tag_query != "" and @tag_results == [] do %>
<li phx-click="create_tag" phx-value-name={@tag_query}>
Create tag "{@tag_query}"
</li>
<% end %>
</ul>
<!-- Selected tags -->
<div class="selected-tags">
<%= for tag <- @endgame.tags do %>
<span class="tag">
{tag.name}
<button type="button" phx-click="remove_tag" phx-value-id={tag.id}>×</button>
</span>
<% end %>
</div>
</div>
<.input field={@form[:message]} type="textarea" label="Message" />
<.input field={@form[:notes]} type="textarea" label="Notes" />
<.input
field={@form[:result]}
type="select"
options={[
{"Win", :win},
{"Draw", :draw},
{"Loss", :loss}
]}
label="Result"
/>
<footer>
<.button phx-disable-with="Saving..." variant="primary">Save Endgame</.button>
<.button navigate={return_path(@return_to, @endgame)}>Cancel</.button>
</footer>
</.form>
</Layouts.app>
"""
end
@impl true
def mount(params, _session, socket) do
{:ok,
socket
|> assign(:return_to, return_to(params["return_to"]))
|> apply_action(socket.assigns.live_action, params)}
end
defp return_to("show"), do: "show"
defp return_to(_), do: "index"
defp apply_action(socket, :edit, %{"id" => id}) do
endgame = Endgames.get_endgame!(id)
socket
|> assign(:page_title, "Edit Endgame")
|> assign(:endgame, endgame)
|> assign(:tag_query, "")
|> assign(:tag_results, [])
|> assign(:endgame, Repo.preload(endgame, :tags))
|> assign(:form, to_form(Endgames.change_endgame(endgame)))
end
defp apply_action(socket, :new, _params) do
endgame = %Endgame{}
socket
|> assign(:page_title, "New Endgame")
|> assign(:endgame, endgame)
|> assign(:tag_query, "")
|> assign(:tag_results, [])
|> assign(:endgame, Repo.preload(endgame, :tags))
|> assign(:form, to_form(Endgames.change_endgame(endgame)))
end
@impl true
def handle_event("search_tags", %{"tag_search" => query}, socket) do
tags = Tags.search(query, "endgame")
{:noreply,
socket
|> assign(:tag_query, query)
|> assign(:tag_results, tags)}
end
def handle_event("add_tag", %{"id" => id}, socket) do
tag = Tags.get_tag!(id)
{:ok, endgame} = Endgames.add_tag(socket.assigns.endgame, tag)
{:noreply,
socket
|> assign(:endgame, Repo.preload(endgame, :tags))
|> assign(:tag_query, "")
|> assign(:tag_results, [])}
end
def handle_event("create_tag", %{"name" => name}, socket) do
{:ok, tag} = Tags.get_or_create(name, "endgame")
{:ok, endgame} = Endgames.add_tag(socket.assigns.endgame, tag)
{:noreply,
socket
|> assign(:endgame, Repo.preload(endgame, :tags))
|> assign(:tag_query, "")
|> assign(:tag_results, [])}
end
def handle_event("remove_tag", %{"id" => id}, socket) do
tag = Tags.get_tag!(id)
{:ok, endgame} = Endgames.remove_tag(socket.assigns.endgame, tag)
{:noreply,
socket
|> assign(:endgame, Repo.preload(endgame, :tags))}
end
def handle_event("validate", %{"endgame" => endgame_params}, socket) do
# Compute color from the incoming FEN
color = FEN.color_from_fen(endgame_params["fen"])
# Update the struct
endgame = %{socket.assigns.endgame | color: color}
# Build the changeset *from the updated struct*
changeset =
endgame
|> Endgames.change_endgame()
|> Ecto.Changeset.put_change(:color, color)
{:noreply, assign(socket, endgame: endgame, form: to_form(changeset, action: :validate))}
end
def handle_event("save", %{"endgame" => endgame_params}, socket) do
save_endgame(socket, socket.assigns.live_action, endgame_params)
end
defp save_endgame(socket, :edit, endgame_params) do
case Endgames.update_endgame(socket.assigns.endgame, endgame_params) do
{:ok, endgame} ->
{:noreply,
socket
|> put_flash(:info, "Endgame updated successfully")
|> push_navigate(to: return_path(socket.assigns.return_to, endgame))}
{:error, %Ecto.Changeset{} = changeset} ->
{:noreply, assign(socket, form: to_form(changeset))}
end
end
defp save_endgame(socket, :new, endgame_params) do
color = FEN.color_from_fen(endgame_params["fen"])
params = Map.put(endgame_params, "color", color)
case Endgames.create_endgame(params) do
{:ok, endgame} ->
{:noreply,
socket
|> put_flash(:info, "Endgame created successfully")
|> push_navigate(to: return_path(socket.assigns.return_to, endgame))}
{:error, %Ecto.Changeset{} = changeset} ->
{:noreply, assign(socket, form: to_form(changeset))}
end
end
defp return_path("index", _endgame), do: ~p"/admin/endgames"
defp return_path("show", endgame), do: ~p"/admin/endgames/#{endgame}"
end
@@ -0,0 +1,71 @@
defmodule ChesstrainerWeb.EndgameLive.Index do
use ChesstrainerWeb, :live_view
alias Chesstrainer.Endgames
@impl true
def render(assigns) do
~H"""
<Layouts.app flash={@flash}>
<.header>
Listing Endgames
<:actions>
<.button variant="primary" navigate={~p"/admin/endgames/new"}>
<.icon name="hero-plus" /> New Endgame
</.button>
</:actions>
</.header>
<.table
id="endgames"
rows={@streams.endgames}
row_click={fn {_id, endgame} -> JS.navigate(~p"/admin/endgames/#{endgame}") end}
>
<:col :let={{_id, endgame}} label="Fen">{endgame.fen}</:col>
<:col :let={{_id, endgame}} label="Color">{endgame.color}</:col>
<:col :let={{_id, endgame}} label="Key">{endgame.key}</:col>
<:col :let={{_id, endgame}} label="Rating">{endgame.rating}</:col>
<:col :let={{_id, endgame}} label="Message">{endgame.message}</:col>
<:col :let={{_id, endgame}} label="Notes">{endgame.notes}</:col>
<:col :let={{_id, endgame}} label="Result">{endgame.result}</:col>
<:col :let={{_id, endgame}} label="Attempted">{endgame.times_attempted}</:col>
<:col :let={{_id, endgame}} label="Solved">{endgame.times_solved}</:col>
<:action :let={{_id, endgame}}>
<div class="sr-only">
<.link navigate={~p"/admin/endgames/#{endgame}"}>Show</.link>
</div>
<.link navigate={~p"/admin/endgames/#{endgame}/edit"}>Edit</.link>
</:action>
<:action :let={{id, endgame}}>
<.link
phx-click={JS.push("delete", value: %{id: endgame.id}) |> hide("##{id}")}
data-confirm="Are you sure?"
>
Delete
</.link>
</:action>
</.table>
</Layouts.app>
"""
end
@impl true
def mount(_params, _session, socket) do
{:ok,
socket
|> assign(:page_title, "Listing Endgames")
|> stream(:endgames, list_endgames())}
end
@impl true
def handle_event("delete", %{"id" => id}, socket) do
endgame = Endgames.get_endgame!(id)
{:ok, _} = Endgames.delete_endgame(endgame)
{:noreply, stream_delete(socket, :endgames, endgame)}
end
defp list_endgames() do
Endgames.list_endgames()
end
end
@@ -0,0 +1,64 @@
defmodule ChesstrainerWeb.EndgameLive.Show do
use ChesstrainerWeb, :live_view
alias Chesstrainer.Endgames
alias Chesstrainer.Game
import ChesstrainerWeb.Board.BoardComponent
@impl true
def render(assigns) do
game =
case Game.game_from_fen(assigns.endgame.fen, :endgame) do
{:ok, g} -> g
{:error, :invalid_fen, g} -> g
end
# TODO once we return {:error, :invalid_fen, game}, then put flash to show it is invalid
# write tests for this
assigns =
assigns
|> assign(:game, game)
|> assign(:game_type, :endgame)
~H"""
<Layouts.app flash={@flash}>
<.header>
Endgame {@endgame.id}
<:subtitle>This is a endgame record from your database.</:subtitle>
<:actions>
<.button navigate={~p"/admin/endgames"}>
<.icon name="hero-arrow-left" />
</.button>
<.button variant="primary" navigate={~p"/admin/endgames/#{@endgame}/edit?return_to=show"}>
<.icon name="hero-pencil-square" /> Edit endgame
</.button>
</:actions>
</.header>
<.board game={@game} myself="board" />
<.list>
<:item title="Fen">{@endgame.fen}</:item>
<:item title="Key">{@endgame.key}</:item>
<:item title="Color">{@endgame.color}</:item>
<:item title="Rating">{@endgame.rating}</:item>
<:item title="Message">{@endgame.message}</:item>
<:item title="Notes">{@endgame.notes}</:item>
<:item title="Result">{@endgame.result}</:item>
<:item title="Attempted">{@endgame.times_attempted}</:item>
<:item title="Solved">{@endgame.times_solved}</:item>
</.list>
</Layouts.app>
"""
end
@impl true
def mount(%{"id" => id}, _session, socket) do
{:ok,
socket
|> assign(:page_title, "Show Endgame")
|> assign(:endgame, Endgames.get_endgame!(id))}
end
end
+11
View File
@@ -22,6 +22,17 @@ defmodule ChesstrainerWeb.Router do
live "/chess-test", ChessTestLive
end
scope "/admin", ChesstrainerWeb do
pipe_through :browser
live_session :endgames do
live "/endgames", EndgameLive.Index, :index
live "/endgames/new", EndgameLive.Form, :new
live "/endgames/:id", EndgameLive.Show, :show
live "/endgames/:id/edit", EndgameLive.Form, :edit
end
end
# Other scopes may use custom stacks.
# scope "/api", ChesstrainerWeb do
# pipe_through :api
+2 -1
View File
@@ -65,7 +65,8 @@ defmodule Chesstrainer.MixProject do
{:gettext, "~> 1.0"},
{:jason, "~> 1.2"},
{:dns_cluster, "~> 0.2.0"},
{:bandit, "~> 1.5"}
{:bandit, "~> 1.5"},
{:chex, git: "https://github.com/therealowenrees/chex.git", tag: "v0.2.0-alpha.2"}
]
end
+2
View File
@@ -1,6 +1,7 @@
%{
"bandit": {:hex, :bandit, "1.12.0", "6c5214daa2469644ac4ab0113b98abc24f75e348378e6a974c6343b3e5da22ef", [:mix], [{:hpax, "~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.18", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.5", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "45dac82dc86f45cf4a196dee9cc5a8b791d9c9469d996055f055e6ee36c66e20"},
"cc_precompiler": {:hex, :cc_precompiler, "0.1.11", "8c844d0b9fb98a3edea067f94f616b3f6b29b959b6b3bf25fee94ffe34364768", [:mix], [{:elixir_make, "~> 0.7", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "3427232caf0835f94680e5bcf082408a70b48ad68a5f5c0b02a3bea9f3a075b9"},
"chex": {:git, "https://github.com/therealowenrees/chex.git", "655b5c3df6c5297689d7872bbce1e86c6c629d26", [tag: "v0.2.0-alpha.2"]},
"db_connection": {:hex, :db_connection, "2.10.1", "d5465f6bcc125c1b8981c1dbf23c193ca16f446ec0b25832dc174f74f18be510", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "18ed94c6e627b4bf452dbd4df61b69a35a1e768525140bc1917b7a685026a6a3"},
"decimal": {:hex, :decimal, "3.1.1", "430d87b04011ce6cbd4fd205be758311a81f87d552d40904abd00f015935b1d0", [:mix], [], "hexpm", "c5f25f2ced74a0587d03e6023f595db8e924c9d3922c8c8ffd9edfc4498cf1f6"},
"dns_cluster": {:hex, :dns_cluster, "0.2.0", "aa8eb46e3bd0326bd67b84790c561733b25c5ba2fe3c7e36f28e88f384ebcb33", [:mix], [], "hexpm", "ba6f1893411c69c01b9e8e8f772062535a4cf70f3f35bcc964a324078d8c8240"},
@@ -21,6 +22,7 @@
"mime": {:hex, :mime, "2.0.7", "b8d739037be7cd402aee1ba0306edfdef982687ee7e9859bee6198c1e7e2f128", [:mix], [], "hexpm", "6171188e399ee16023ffc5b76ce445eb6d9672e2e241d2df6050f3c771e80ccd"},
"mint": {:hex, :mint, "1.9.0", "d6f534c2a3e98b2a8cc749b4796eb77e9e3af79a76f96e4c74035a827de0d318", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "007154c7d8c43916aed3c93afd1f11aebbaa9c5ff4b7ba55ebe0d17ee0296042"},
"nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
"nimble_parsec": {:hex, :nimble_parsec, "1.4.2", "8efba0122db06df95bfaa78f791344a89352ba04baedd3849593bfce4d0dc1c6", [:mix], [], "hexpm", "4b21398942dda052b403bbe1da991ccd03a053668d147d53fb8c4e0efe09c973"},
"nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},
"phoenix": {:hex, :phoenix, "1.8.8", "ada3d761359274178180c0e992ef0c2b536bd7c3bd75ebba94acbf39ab4347fe", [:mix], [{:bandit, "~> 1.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 2.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.7", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websock_adapter, "~> 0.5.3", [hex: :websock_adapter, repo: "hexpm", optional: false]}], "hexpm", "f0c843037bd2e7012fc1d1ec9574dfa6972b7e3d09e9b77fd23aa283af0aa994"},
"phoenix_ecto": {:hex, :phoenix_ecto, "4.7.0", "75c4b9dfb3efdc42aec2bd5f8bccd978aca0651dbcbc7a3f362ea5d9d43153c6", [:mix], [{:ecto, "~> 3.5", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.1", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.16 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}], "hexpm", "1d75011e4254cb4ddf823e81823a9629559a1be93b4321a6a5f11a5306fbf4cc"},
@@ -0,0 +1,14 @@
defmodule Chesstrainer.Repo.Migrations.CreateTags do
use Ecto.Migration
def change do
create table(:tags) do
add :name, :string
add :category, :string
timestamps(type: :utc_datetime)
end
create unique_index(:tags, [:name, :category])
end
end
@@ -0,0 +1,23 @@
defmodule Chesstrainer.Repo.Migrations.CreateEndgames do
use Ecto.Migration
def change do
create table(:endgames, primary_key: false) do
add :id, :binary_id, primary_key: true
add :fen, :string
add :color, :string
add :key, :string
add :message, :text
add :notes, :text
add :result, :string
add :rating, :integer, default: 1500
add :rating_deviation, :integer, default: 350
add :times_attempted, :integer, default: 0
add :times_solved, :integer, default: 0
timestamps(type: :utc_datetime)
end
create unique_index(:endgames, [:fen])
end
end
@@ -0,0 +1,12 @@
defmodule Chesstrainer.Repo.Migrations.CreateEndgamesTags do
use Ecto.Migration
def change do
create table(:endgames_tags, primary_key: false) do
add :endgame_id, references(:endgames, type: :binary_id, on_delete: :delete_all)
add :tag_id, references(:tags, on_delete: :delete_all)
end
create unique_index(:endgames_tags, [:endgame_id, :tag_id])
end
end
+54
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@@ -9,3 +9,57 @@
#
# We recommend using the bang functions (`insert!`, `update!`
# and so on) as they will fail if something goes wrong.
alias Chesstrainer.Repo
alias Chesstrainer.Endgames.Endgame
alias Chesstrainer.Tags.Tag
now = DateTime.utc_now() |> DateTime.truncate(:second)
IO.puts("🌱 Seeding basic endgames into DB...")
Repo.insert_all(Endgame, [
%{
id: Ecto.UUID.generate(),
fen: "8/8/3k4/8/8/3K1R2/8/8 w - - 0 1",
color: :white,
key: "KR v K",
message: "Rook vs king endgame",
notes: "Basic rook endgame",
result: :win,
inserted_at: now,
updated_at: now
},
%{
id: Ecto.UUID.generate(),
fen: "6k1/5p2/6p1/8/7p/8/6PP/6K1 b - - 0 0",
color: :black,
key: "KPPP v KPP",
message: "3 pawns vs 2 pawns",
notes: "https://www.chessgames.com/perl/chessgame?gid=1017147",
result: :win,
inserted_at: now,
updated_at: now
}
])
IO.puts("✅ Done seeding endgames.")
IO.puts("🌱 Seeding endgame tags into DB...")
Repo.insert_all(Tag, [
%{
name: "mate in 2",
category: :endgame,
inserted_at: now,
updated_at: now
},
%{
name: "mate in 3",
category: :endgame,
inserted_at: now,
updated_at: now
}
])
IO.puts("✅ Done seeding endgame tags.")
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defmodule Chesstrainer.TagsTest do
use Chesstrainer.DataCase
alias Chesstrainer.Tags
describe "tags" do
alias Chesstrainer.Tags.Tag
import Chesstrainer.TagsFixtures
@invalid_attrs %{name: nil, category: nil}
test "list_tags/0 returns all tags" do
tag = tag_fixture()
assert Tags.list_tags() == [tag]
end
test "get_tag!/1 returns the tag with given id" do
tag = tag_fixture()
assert Tags.get_tag!(tag.id) == tag
end
test "create_tag/1 with valid data creates a tag" do
valid_attrs = %{name: "some name", category: "some category"}
assert {:ok, %Tag{} = tag} = Tags.create_tag(valid_attrs)
assert tag.name == "some name"
assert tag.category == "some category"
end
test "create_tag/1 with invalid data returns error changeset" do
assert {:error, %Ecto.Changeset{}} = Tags.create_tag(@invalid_attrs)
end
test "update_tag/2 with valid data updates the tag" do
tag = tag_fixture()
update_attrs = %{name: "some updated name", category: "some updated category"}
assert {:ok, %Tag{} = tag} = Tags.update_tag(tag, update_attrs)
assert tag.name == "some updated name"
assert tag.category == "some updated category"
end
test "update_tag/2 with invalid data returns error changeset" do
tag = tag_fixture()
assert {:error, %Ecto.Changeset{}} = Tags.update_tag(tag, @invalid_attrs)
assert tag == Tags.get_tag!(tag.id)
end
test "delete_tag/1 deletes the tag" do
tag = tag_fixture()
assert {:ok, %Tag{}} = Tags.delete_tag(tag)
assert_raise Ecto.NoResultsError, fn -> Tags.get_tag!(tag.id) end
end
test "change_tag/1 returns a tag changeset" do
tag = tag_fixture()
assert %Ecto.Changeset{} = Tags.change_tag(tag)
end
end
end
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defmodule Chesstrainer.TagsFixtures do
@moduledoc """
This module defines test helpers for creating
entities via the `Chesstrainer.Tags` context.
"""
@doc """
Generate a unique tag name.
"""
def unique_tag_name, do: "some name#{System.unique_integer([:positive])}"
@doc """
Generate a tag.
"""
def tag_fixture(attrs \\ %{}) do
{:ok, tag} =
attrs
|> Enum.into(%{
category: "some category",
name: unique_tag_name()
})
|> Chesstrainer.Tags.create_tag()
tag
end
end