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defmodule Nola.Plugins.Image do
require Logger
import Nola.Plugins.TempRefHelper
def irc_doc() do
"""
# Image Generation
* **`!d2 [-n 1..10] [-g 256, 512, 1024] <prompt>`** generate image(s) using OpenAI Dall-E 2
* **`!sd [options] <prompt>`** generate image(s) using Stable Diffusion models (see below)
## !sd
* `-m X` (sd2) Model (sd2: Stable Diffusion v2, sd1: Stable Diffusion v1.5, any3: Anything v3, any4: Anything v4, oj: OpenJourney)
* `-w X, -h X` (512) width and height. (128, 256, 384, 448, 512, 576, 640, 704, 768)
* `-n 1..10` (1) number of images to generate
* `-s X` (null) Seed
* `-S 0..500` (50) denoising steps
* `-X X` (KLMS) scheduler (DDIM, K_EULER, DPMSolverMultistep, K_EULER_ANCESTRAL, PNDM, KLMS)
* `-g 1..20` (7.5) guidance scale
* `-P 0.0..1.0` (0.8) prompt strength
"""
end
def start_link() do
GenServer.start_link(__MODULE__, [], name: __MODULE__)
end
defstruct [:temprefs]
def init(_) do
regopts = [plugin: __MODULE__]
{:ok, _} = Registry.register(Nola.PubSub, "trigger:d2", regopts)
{:ok, _} = Registry.register(Nola.PubSub, "trigger:sd", regopts)
{:ok, %__MODULE__{temprefs: new_temp_refs()}}
end
def handle_info({:irc, :trigger, "sd", msg = %Nola.Message{trigger: %Nola.Trigger{type: :bang, args: args}}}, state) do
{:noreply, case OptionParser.parse(args, aliases: [m: :model], strict: [model: :string]) do
{_, [], _} ->
msg.replyfun.("#{msg.sender.nick}: sd: missing prompt")
state
{opts, prompt, _} ->
process_sd(Keyword.get(opts, :model, "sd2"), Enum.join(prompt, " "), msg, state)
end}
end
def handle_info({:irc, :trigger, "d2", msg = %Nola.Message{trigger: %Nola.Trigger{type: :bang, args: args}}}, state) do
opts = OptionParser.parse(args,
aliases: [n: :n, g: :geometry],
strict: [n: :integer, geometry: :integer]
)
case opts do
{_opts, [], _} ->
msg.replyfun.("#{msg.sender.nick}: d2: missing prompt")
{:noreply, state}
{opts, prompts, _} ->
prompt = Enum.join(prompts, " ")
geom = Keyword.get(opts, :geometry, 256)
request = %{
"prompt" => prompt,
"n" => Keyword.get(opts, :n, 1),
"size" => "#{geom}x#{geom}",
"response_format" => "b64_json",
"user" => msg.account.id,
}
id = FlakeId.get()
state = case OpenAi.post("/v1/images/generations", request) do
{:ok, %{"data" => data}} ->
urls = for {%{"b64_json" => b64}, idx} <- Enum.with_index(data) do
with {:ok, body} <- Base.decode64(b64),
<<smol_body::binary-size(20), _::binary>> = body,
{:ok, magic} <- GenMagic.Pool.perform(Nola.GenMagic, {:bytes, smol_body}),
bucket = Application.get_env(:nola, :s3, []) |> Keyword.get(:bucket),
s3path = "#{msg.account.id}/iD2#{id}#{idx}.png",
s3req = ExAws.S3.put_object(bucket, s3path, body, acl: :public_read, content_type: magic.mime_type),
{:ok, _} <- ExAws.request(s3req),
path = NolaWeb.Router.Helpers.url(NolaWeb.Endpoint) <> "/files/#{s3path}"
do
{:ok, path}
end
end
urls = for {:ok, path} <- urls, do: path
msg.replyfun.("#{msg.sender.nick}: #{Enum.join(urls, " ")}")
state
{:error, atom} when is_atom(atom) ->
Logger.error("dalle2: #{inspect atom}")
msg.replyfun.("#{msg.sender.nick}: dalle2: ☠️ #{to_string(atom)}")
state
error ->
Logger.error("dalle2: #{inspect error}")
msg.replyfun.("#{msg.sender.nick}: dalle2: ☠️ ")
state
end
{:noreply, state}
end
end
defp process_sd(model, prompt, msg, state) do
{general_opts, _, _} = OptionParser.parse(msg.trigger.args,
aliases: [n: :number, w: :width, h: :height],
strict: [number: :integer, width: :integer, height: :integer]
)
general_opts = general_opts
|> Keyword.put_new(:number, 1)
case sd_model(model, prompt, general_opts, msg.trigger.args) do
{:ok, env} ->
base_url = "https://api.runpod.ai/v1/#{env.name}"
{headers, options} = runpod_headers(env, state)
result = with {:ok, json} <- Poison.encode(%{"input" => env.request}),
{:ok, %HTTPoison.Response{status_code: 200, body: body}} <- HTTPoison.post("#{base_url}/run", json, headers, options),
{:ok, %{"id" => id} = data} <- Poison.decode(body) do
Logger.debug("runpod: started job #{id}: #{inspect data}")
spawn(fn() -> runpod_result_loop("#{base_url}/status/#{id}", env, msg, state) end)
:ok
else
{:ok, %HTTPoison.Response{status_code: code}} -> {:error, Plug.Conn.Status.reason_atom(code)}
{:error, %HTTPoison.Error{reason: reason}} -> {:error, reason}
end
case result do
{:error, reason} ->
Logger.error("runpod: http error for #{base_url}/run: #{inspect reason}")
msg.replyfun.("#{msg.sender.nick}: sd: runpod failed: #{inspect reason}")
_ -> :ok
end
{:error, error} ->
msg.replyfun.("#{msg.sender.nick}: sd: #{error}")
end
state
end
defp runpod_result_loop(url, env, msg, state) do
Logger.debug("runpod_result_loop: new")
{headers, options} = runpod_headers(env, state)
with {:ok, %HTTPoison.Response{status_code: 200, body: body}} <- HTTPoison.get(url, headers ++ [{"content-type", "application/json"}], options),
{:ok, %{"status" => "COMPLETED"} = data} <- Poison.decode(body) do
id = FlakeId.get()
tasks = for {%{"image" => url, "seed" => seed}, idx} <- Enum.with_index(Map.get(data, "output", [])) do
Task.async(fn() ->
with {:ok, %HTTPoison.Response{status_code: 200, body: body}} <- HTTPoison.get(url, [], options),
bucket = Application.get_env(:nola, :s3, []) |> Keyword.get(:bucket),
s3path = "#{msg.account.id}/iR#{env.nick}#{id}#{idx}-#{seed}.png",
s3req = ExAws.S3.put_object(bucket, s3path, body, acl: :public_read, content_type: "image/png"),
{:ok, _} <- ExAws.request(s3req),
path = NolaWeb.Router.Helpers.url(NolaWeb.Endpoint) <> "/files/#{s3path}"
do
{:ok, path}
else
error ->
Logger.error("runpod_result: error while uploading #{url}: #{inspect error}")
{:error, error}
end
end)
end
|> Task.yield_many(5000)
|> Enum.map(fn {task, res} ->
res || Task.shutdown(task, :brutal_kill)
end)
results = for({:ok, {:ok, url}} <- tasks, do: url)
msg.replyfun.("#{msg.sender.nick}: #{Enum.join(results, " ")}")
else
{:ok, %{"status" => "FAILED"} = data} ->
Logger.error("runpod_result_loop: job FAILED: #{inspect data}")
msg.replyfun.("#{msg.sender.nick}: sd: job failed: #{Map.get(data, "error", "error")}")
{:ok, %{"status" => _} = data} ->
Logger.debug("runpod_result_loop: not completed: #{inspect data}")
:timer.sleep(:timer.seconds(1))
runpod_result_loop(url, env, msg, state)
{:ok, %HTTPoison.Response{status_code: 403}} ->
msg.replyfun.("#{msg.sender.nick}: sd: runpod failure: unauthorized")
error ->
Logger.warning("image: sd: runpod http error: #{inspect error}")
:timer.sleep(:timer.seconds(2))
runpod_result_loop(url, env, msg, state)
end
end
defp runpod_headers(_env, _state) do
config = Application.get_env(:nola, :runpod, [])
headers = [{"user-agent", "nola.lol bot, href@random.sh"},
{"authorization", "Bearer " <> Keyword.get(config, :key, "unset-api-key")}]
options = [timeout: :timer.seconds(180), recv_timeout: :timer.seconds(180)]
{headers, options}
end
defp sd_model(name, _, general_opts, opts) when name in ~w(sd2 sd1 oj any any4) do
{opts, prompt, _} = OptionParser.parse(opts, [
aliases: [P: :strength, s: :seed, S: :steps, g: :guidance, X: :scheduler, q: :negative],
strict: [strength: :float, steps: :integer, guidance: :float, scheduler: :string, seed: :integer, negative: :keep]
])
opts = general_opts ++ opts
prompt = Enum.join(prompt, " ")
negative = case Keyword.get_values(opts, :negative) do
[] -> nil
list -> Enum.join(list, " ")
end
full_name = case name do
"sd2" -> "stable-diffusion-v2"
"sd1" -> "stable-diffusion-v1"
"oj" -> "sd-openjourney"
"any" -> "sd-anything-v3"
"any4" -> "sd-anything-v4"
end
default_scheduler = case name do
"sd2" -> "KLMS"
_ -> "K-LMS"
end
request = %{
"prompt" => prompt,
"num_outputs" => general_opts[:number],
"width" => opts[:width] || 512,
"height" => opts[:height] || 512,
"prompt_strength" => opts[:strength] || 0.8,
"num_inference_steps" => opts[:steps] || 30,
"guidance_scale" => opts[:guidance] || 7.5,
"scheduler" => opts[:scheduler] || default_scheduler,
"seed" => opts[:seed] || :rand.uniform(100_000_00)
}
request = if negative do
Map.put(request, "negative_prompt", negative)
else
request
end
{:ok, %{name: full_name, nick: name, request: request}}
end
defp sd_model(name, _, _, _) do
{:error, "unsupported model: \"#{name}\""}
end
end
|