Files
bDS2/lib/bds/ai/chat_tools.ex

991 lines
31 KiB
Elixir

defmodule BDS.AI.ChatTools do
@moduledoc false
import Ecto.Query
alias BDS.AI.Chat
alias BDS.Media, as: MediaContext
alias BDS.Media.Media
alias BDS.MCP.Queries
alias BDS.Posts, as: PostsContext
alias BDS.Posts.Post
alias BDS.Posts.PostMedia
alias BDS.Projects.Project
alias BDS.Repo
alias BDS.Search
@spec execute(String.t(), map(), String.t() | nil) :: map()
def execute("blog_stats", _arguments, project_id) do
execute("get_blog_stats", %{}, project_id)
end
def execute("get_blog_stats", _arguments, project_id) do
project_id = project_id || active_project_id()
%{
post_count:
Repo.aggregate(from(post in Post, where: post.project_id == ^project_id), :count, :id),
media_count:
Repo.aggregate(from(media in Media, where: media.project_id == ^project_id), :count, :id),
tag_count: Chat.count_distinct_string_list(Post, :tags, project_id),
category_count: Chat.count_distinct_string_list(Post, :categories, project_id)
}
end
def execute("check_term", arguments, project_id) do
project_id = project_id || active_project_id()
term = normalize_term(arguments["term"])
posts = Repo.all(from post in Post, where: post.project_id == ^project_id)
tag_post_count =
Enum.count(posts, fn post ->
Enum.any?(post.tags || [], &(normalize_term(&1) == term))
end)
category_post_count =
Enum.count(posts, fn post ->
Enum.any?(post.categories || [], &(normalize_term(&1) == term))
end)
%{
is_category: category_post_count > 0,
category_post_count: category_post_count,
is_tag: tag_post_count > 0,
tag_post_count: tag_post_count
}
end
def execute("search_posts", arguments, project_id) do
project_id = project_id || active_project_id()
filters = search_filters(arguments)
{:ok, result} = Search.search_posts(project_id, arguments["query"] || "", filters)
%{
posts: Enum.map(result.posts, &Queries.post_summary/1),
total: result.total,
offset: result.offset,
limit: result.limit,
has_more: result.offset + result.limit < result.total
}
end
def execute("read_post_by_slug", arguments, project_id) do
project_id = project_id || active_project_id()
case Repo.get_by(Post, project_id: project_id, slug: arguments["slug"]) do
%Post{} = post -> %{post: Queries.post_detail(post)}
nil -> %{error: "not_found"}
end
end
def execute("read_post", arguments, project_id) do
project_id = project_id || active_project_id()
case Repo.get_by(Post,
id: arguments["postId"] || arguments["post_id"],
project_id: project_id
) do
%Post{} = post -> %{post: Queries.post_detail(post)}
nil -> %{success: false, error: "not_found"}
end
end
def execute("list_posts", arguments, project_id) do
project_id = project_id || active_project_id()
limit = normalize_limit(arguments["limit"])
offset = normalize_offset(arguments["offset"])
filters = search_filters(arguments) |> Map.merge(%{limit: limit, offset: offset})
{:ok, result} = Search.search_posts(project_id, "", filters)
%{
posts:
Enum.map(result.posts, fn post ->
post
|> Queries.post_summary()
|> Map.put("url", "/posts/#{post.slug}")
|> Map.put("updated_at", post.updated_at)
end),
total: result.total,
offset: result.offset,
limit: result.limit,
has_more: result.offset + result.limit < result.total
}
end
def execute("list_media", arguments, project_id) do
project_id = project_id || active_project_id()
limit = normalize_limit(arguments["limit"])
Repo.all(
from(media in Media,
where: media.project_id == ^project_id,
order_by: [desc: media.updated_at],
limit: ^limit,
select: %{
id: media.id,
title: media.title,
mime_type: media.mime_type,
filename: media.filename,
updated_at: media.updated_at
}
)
)
end
def execute("get_media", arguments, project_id) do
project_id = project_id || active_project_id()
case Repo.get_by(Media,
id: arguments["mediaId"] || arguments["media_id"],
project_id: project_id
) do
%Media{} = media -> %{media: media_summary(media)}
nil -> %{success: false, error: "not_found"}
end
end
def execute("view_image", arguments, project_id) do
project_id = project_id || active_project_id()
media_id = arguments["mediaId"] || arguments["media_id"]
size = arguments["size"] || "medium"
case Repo.get_by(Media, id: media_id, project_id: project_id) do
%Media{mime_type: "image/" <> _rest} = media ->
case thumbnail_data_url(project_id, media, size) do
nil -> %{success: false, error: "thumbnail_not_available"}
data_url -> %{success: true, media: media_summary(media), data_url: data_url}
end
%Media{} = media ->
%{success: false, error: "not_image", mime_type: media.mime_type}
nil ->
%{success: false, error: "not_found"}
end
end
def execute("update_post_metadata", arguments, project_id) do
project_id = project_id || active_project_id()
post_id = arguments["postId"] || arguments["post_id"]
with %Post{} <- Repo.get_by(Post, id: post_id, project_id: project_id),
attrs <- metadata_attrs(arguments, ["title", "excerpt", "tags", "categories"]),
false <- attrs == %{},
{:ok, post} <- PostsContext.update_post(post_id, attrs) do
%{success: true, post: Queries.post_detail(post)}
else
nil -> %{success: false, error: "not_found"}
true -> %{success: false, error: "no_updates_provided"}
{:error, reason} -> %{success: false, error: inspect(reason)}
end
end
def execute("update_media_metadata", arguments, project_id) do
project_id = project_id || active_project_id()
media_id = arguments["mediaId"] || arguments["media_id"]
with %Media{} <- Repo.get_by(Media, id: media_id, project_id: project_id),
attrs <- metadata_attrs(arguments, ["title", "alt", "caption", "tags"]),
false <- attrs == %{},
{:ok, media} <- MediaContext.update_media(media_id, attrs) do
%{success: true, media: media_summary(media)}
else
nil -> %{success: false, error: "not_found"}
true -> %{success: false, error: "no_updates_provided"}
{:error, reason} -> %{success: false, error: inspect(reason)}
end
end
def execute("list_tags", _arguments, project_id) do
project_id = project_id || active_project_id()
%{
tags: counted_terms(project_id, :tags),
count: length(counted_terms(project_id, :tags))
}
end
def execute("list_categories", _arguments, project_id) do
project_id = project_id || active_project_id()
%{
categories: counted_terms(project_id, :categories),
count: length(counted_terms(project_id, :categories))
}
end
def execute("count_posts", arguments, project_id) do
project_id = project_id || active_project_id()
group_by = List.wrap(arguments["groupBy"] || arguments["group_by"]) |> Enum.map(&to_string/1)
result = search_all_counted_posts(project_id, arguments)
groups =
result.posts
|> Enum.flat_map(&Queries.group_rows(&1, group_by))
|> Enum.group_by(& &1, fn _row -> 1 end)
|> Enum.map(fn {row, counts} -> Map.put(row, "count", length(counts)) end)
|> Enum.sort_by(&Map.to_list/1)
%{groups: groups, total_posts: result.total}
end
def execute("get_post_backlinks", arguments, project_id) do
project_id = project_id || active_project_id()
case Repo.get_by(Post,
id: arguments["postId"] || arguments["post_id"],
project_id: project_id
) do
%Post{} = post ->
%{success: true, post_id: post.id, linked_by: Queries.linked_posts(post.id, :incoming)}
nil ->
%{success: false, error: "not_found"}
end
end
def execute("get_post_outlinks", arguments, project_id) do
project_id = project_id || active_project_id()
case Repo.get_by(Post,
id: arguments["postId"] || arguments["post_id"],
project_id: project_id
) do
%Post{} = post ->
%{success: true, post_id: post.id, links_to: Queries.linked_posts(post.id, :outgoing)}
nil ->
%{success: false, error: "not_found"}
end
end
def execute("get_post_media", arguments, project_id) do
project_id = project_id || active_project_id()
post_id = arguments["postId"] || arguments["post_id"]
case Repo.get_by(Post, id: post_id, project_id: project_id) do
%Post{} = post -> %{success: true, post_id: post.id, media: post_media(project_id, post.id)}
nil -> %{success: false, error: "not_found"}
end
end
def execute("get_media_posts", arguments, project_id) do
project_id = project_id || active_project_id()
media_id = arguments["mediaId"] || arguments["media_id"]
case Repo.get_by(Media, id: media_id, project_id: project_id) do
%Media{} = media -> %{success: true, media_id: media.id, posts: media_posts(media.id)}
nil -> %{success: false, error: "not_found"}
end
end
def execute("render_table", arguments, _project_id) do
%{
type: "table",
title: arguments["title"],
columns: arguments["columns"] || [],
rows: arguments["rows"] || []
}
end
def execute("render_chart", arguments, _project_id) do
%{
type: "chart",
title: arguments["title"],
chart_type: arguments["chartType"] || arguments["chart_type"] || "bar",
series: arguments["series"] || []
}
end
def execute("render_form", arguments, _project_id) do
%{
type: "form",
title: arguments["title"],
fields: arguments["fields"] || [],
submit_label: arguments["submit_label"] || arguments["submitLabel"],
submit_action: arguments["submit_action"] || arguments["submitAction"]
}
end
def execute("render_card", arguments, _project_id) do
%{
type: "card",
title: arguments["title"],
subtitle: arguments["subtitle"],
body: arguments["body"],
actions: arguments["actions"] || []
}
end
def execute("render_metric", arguments, _project_id) do
%{
type: "metric",
label: arguments["label"],
value: arguments["value"]
}
end
def execute("render_list", arguments, _project_id) do
%{
type: "list",
title: arguments["title"],
items: arguments["items"] || []
}
end
def execute("render_tabs", arguments, _project_id) do
%{
type: "tabs",
title: arguments["title"],
tabs: arguments["tabs"] || []
}
end
def execute("render_mindmap", arguments, _project_id) do
%{
type: "mindmap",
title: arguments["title"],
nodes: arguments["nodes"] || []
}
end
def execute(name, _arguments, _project_id) do
%{error: "unknown_tool", name: name}
end
@spec available_specs(String.t() | nil, map()) :: [map()]
def available_specs(project_id, capabilities) do
if capabilities.supports_tool_calls do
project_tools =
if is_binary(project_id) do
[
%{
name: "blog_stats",
spec:
tool_spec("blog_stats", "Return aggregate blog statistics", %{
"type" => "object",
"properties" => %{}
})
},
%{
name: "get_blog_stats",
spec:
tool_spec(
"get_blog_stats",
"Get comprehensive blog statistics: total posts, media count, unique tag count, and unique category count. Use this first when you need to understand the scope of the data.",
%{"type" => "object", "properties" => %{}}
)
},
%{
name: "check_term",
spec:
tool_spec(
"check_term",
"Check whether a term exists as a category, tag, or both. Returns post counts for each. Use before search_posts or list_posts when unsure whether a term is a category or tag.",
%{
"type" => "object",
"properties" => %{"term" => %{"type" => "string"}},
"required" => ["term"]
}
)
},
%{
name: "search_posts",
spec:
tool_spec(
"search_posts",
"Search blog posts using full-text search. Can filter by category, tags, language, missing translation language, year, month, or status. Returns paginated concrete post data with titles, slugs, tags, categories, backlinks, and links_to.",
post_search_schema(true)
)
},
%{
name: "read_post",
spec:
tool_spec(
"read_post",
"Read full content and metadata of a specific blog post by ID. Includes backlinks, links_to, tags, categories, excerpt, status, language, and available languages.",
%{
"type" => "object",
"properties" => %{"postId" => %{"type" => "string"}},
"required" => ["postId"]
}
)
},
%{
name: "read_post_by_slug",
spec:
tool_spec(
"read_post_by_slug",
"Read full content and metadata of a specific blog post by slug. Includes backlinks, links_to, tags, categories, excerpt, status, language, and available languages.",
%{
"type" => "object",
"properties" => %{"slug" => %{"type" => "string"}},
"required" => ["slug"]
}
)
},
%{
name: "list_posts",
spec:
tool_spec(
"list_posts",
"List blog posts with optional filtering by status, category, tags, language, year, or month. Returns paginated concrete post data with titles, slugs, URLs, statuses, tags, categories, backlinks, and links_to. Use for recent, latest, top, or title-list requests.",
post_search_schema(false)
)
},
%{
name: "get_media",
spec:
tool_spec(
"get_media",
"Get information about a specific media file by ID, including title, alt text, caption, tags, filename, MIME type, dimensions, and update time.",
media_id_schema()
)
},
%{
name: "list_media",
spec:
tool_spec(
"list_media",
"List concrete media data in the active project, including titles, filenames, MIME types, and update times.",
limit_schema()
)
},
%{
name: "view_image",
spec:
tool_spec(
"view_image",
"View an image thumbnail as a local data URL for visual inspection. Only works with image media files.",
media_id_schema(%{
"size" => %{"type" => "string", "enum" => ["small", "medium", "large"]}
})
)
},
%{
name: "update_post_metadata",
spec:
tool_spec(
"update_post_metadata",
"Update metadata for a blog post: title, excerpt, tags, or categories. Does not update post body content.",
update_post_metadata_schema()
)
},
%{
name: "update_media_metadata",
spec:
tool_spec(
"update_media_metadata",
"Update metadata for a media file: title, alt text, caption, or tags.",
update_media_metadata_schema()
)
},
%{
name: "list_tags",
spec:
tool_spec(
"list_tags",
"List all tags used across blog posts with post counts.",
%{
"type" => "object",
"properties" => %{}
}
)
},
%{
name: "list_categories",
spec:
tool_spec(
"list_categories",
"List all categories used across blog posts with post counts.",
%{"type" => "object", "properties" => %{}}
)
},
%{
name: "count_posts",
spec:
tool_spec(
"count_posts",
"Count posts grouped by dimensions such as year, month, tag, category, or status. Use for analytics, distributions, and heat maps without transferring full post content.",
count_posts_schema()
)
},
%{
name: "get_post_backlinks",
spec:
tool_spec(
"get_post_backlinks",
"Get all posts that link to a specific post.",
post_id_schema()
)
},
%{
name: "get_post_outlinks",
spec:
tool_spec(
"get_post_outlinks",
"Get all posts that a specific post links to.",
post_id_schema()
)
},
%{
name: "get_post_media",
spec:
tool_spec(
"get_post_media",
"Get media files linked to a specific post.",
post_id_schema()
)
},
%{
name: "get_media_posts",
spec:
tool_spec(
"get_media_posts",
"Get posts that use a specific media file.",
media_id_schema()
)
}
]
else
[]
end
project_tools ++
[
%{
name: "render_card",
spec:
tool_spec(
"render_card",
"Render an information card in the chat UI. Use this for displaying a summary, highlight, or actionable item.",
render_card_schema()
)
},
%{
name: "render_table",
spec:
tool_spec(
"render_table",
"Render a data table in the chat UI. Use this when the user asks for tabular data, comparisons, or structured information.",
render_table_schema()
)
},
%{
name: "render_chart",
spec:
tool_spec(
"render_chart",
"Render an interactive chart in the chat UI. Use this when the user asks for a chart, graph, or data visualization. Supports bar, stacked-bar, line, area, pie, donut, and heatmap charts. Use stacked-bar for multi-segment bars and heatmap for grid/matrix visualizations.",
render_chart_schema()
)
},
%{
name: "render_form",
spec:
tool_spec(
"render_form",
"Render an interactive form in the chat UI. Use this when you need to collect structured input from the user.",
render_form_schema()
)
},
%{
name: "render_metric",
spec:
tool_spec(
"render_metric",
"Render a single metric/KPI display in the chat UI. Use this for showing a single important value with a label.",
render_metric_schema()
)
},
%{
name: "render_list",
spec:
tool_spec(
"render_list",
"Render a list of items in the chat UI. Use this for displaying bullet-point style lists, checklists, or simple enumerations.",
render_list_schema()
)
},
%{
name: "render_tabs",
spec:
tool_spec(
"render_tabs",
"Render a tabbed interface in the chat UI. Use this to organize information into multiple tabs that the user can switch between.",
render_tabs_schema()
)
},
%{
name: "render_mindmap",
spec:
tool_spec(
"render_mindmap",
"Render a mind map diagram in the chat UI. Use this when the user asks for a mind map, concept map, topic tree, brainstorming diagram, or hierarchical overview of ideas.",
render_mindmap_schema()
)
}
]
else
[]
end
end
defp tool_spec(name, description, parameters) do
%{
"type" => "function",
"function" => %{
"name" => name,
"description" => description,
"parameters" => parameters
}
}
end
defp limit_schema do
%{
"type" => "object",
"properties" => %{
"limit" => %{"type" => "integer", "minimum" => 1, "maximum" => 50}
}
}
end
defp post_search_schema(require_query) do
schema = %{
"type" => "object",
"properties" => %{
"query" => %{"type" => "string"},
"status" => %{"type" => "string", "enum" => ["draft", "published", "archived"]},
"category" => %{"type" => "string"},
"tags" => %{"type" => "array", "items" => %{"type" => "string"}},
"language" => %{"type" => "string"},
"missingTranslationLanguage" => %{"type" => "string"},
"year" => %{"type" => "integer"},
"month" => %{"type" => "integer", "minimum" => 1, "maximum" => 12},
"limit" => %{"type" => "integer", "minimum" => 1, "maximum" => 50},
"offset" => %{"type" => "integer", "minimum" => 0}
}
}
if require_query, do: Map.put(schema, "required", ["query"]), else: schema
end
defp count_posts_schema do
%{
"type" => "object",
"properties" => %{
"groupBy" => %{
"type" => "array",
"items" => %{
"type" => "string",
"enum" => ["year", "month", "tag", "category", "status"]
}
},
"year" => %{"type" => "integer"},
"month" => %{"type" => "integer", "minimum" => 1, "maximum" => 12},
"status" => %{"type" => "string", "enum" => ["draft", "published", "archived"]},
"category" => %{"type" => "string"},
"tags" => %{"type" => "array", "items" => %{"type" => "string"}}
},
"required" => ["groupBy"]
}
end
defp post_id_schema do
%{
"type" => "object",
"properties" => %{"postId" => %{"type" => "string"}},
"required" => ["postId"]
}
end
defp media_id_schema(extra_properties \\ %{}) do
%{
"type" => "object",
"properties" => Map.merge(%{"mediaId" => %{"type" => "string"}}, extra_properties),
"required" => ["mediaId"]
}
end
defp update_post_metadata_schema do
%{
"type" => "object",
"properties" => %{
"postId" => %{"type" => "string"},
"title" => %{"type" => "string"},
"excerpt" => %{"type" => "string"},
"tags" => %{"type" => "array", "items" => %{"type" => "string"}},
"categories" => %{"type" => "array", "items" => %{"type" => "string"}}
},
"required" => ["postId"]
}
end
defp update_media_metadata_schema do
%{
"type" => "object",
"properties" => %{
"mediaId" => %{"type" => "string"},
"title" => %{"type" => "string"},
"alt" => %{"type" => "string"},
"caption" => %{"type" => "string"},
"tags" => %{"type" => "array", "items" => %{"type" => "string"}}
},
"required" => ["mediaId"]
}
end
defp render_table_schema do
%{
"type" => "object",
"properties" => %{
"title" => %{"type" => "string", "description" => "Optional table title"},
"columns" => %{
"type" => "array",
"items" => %{"type" => "string"},
"description" => "Column header names"
},
"rows" => %{
"type" => "array",
"items" => %{"type" => "array", "items" => %{"type" => "string"}},
"description" => "Table rows, each row is an array of cell values"
}
}
}
end
defp render_chart_schema do
%{
"type" => "object",
"properties" => %{
"chartType" => %{
"type" => "string",
"enum" => ["bar", "stacked-bar", "line", "area", "pie", "donut", "heatmap"],
"description" =>
"The type of chart to render. Use stacked-bar for multi-segment bars. Use heatmap for grid/matrix visualizations."
},
"title" => %{"type" => "string", "description" => "Optional chart title"},
"series" => %{
"type" => "array",
"description" => "Array of data points.",
"items" => %{
"type" => "object",
"properties" => %{
"label" => %{"type" => "string", "description" => "Data point label"},
"value" => %{"type" => "number", "description" => "Data point value"},
"segments" => %{
"type" => "array",
"description" =>
"Segments within this data point. Required for stacked-bar and heatmap charts.",
"items" => %{
"type" => "object",
"properties" => %{
"label" => %{"type" => "string"},
"value" => %{"type" => "number"}
},
"required" => ["label", "value"]
}
}
},
"required" => ["label"]
}
}
},
"required" => ["chartType", "series"]
}
end
defp render_form_schema do
%{
"type" => "object",
"properties" => %{
"title" => %{"type" => "string"},
"fields" => %{"type" => "array"},
"submitLabel" => %{"type" => "string"},
"submitAction" => %{"type" => "string"}
}
}
end
defp render_card_schema do
%{
"type" => "object",
"properties" => %{
"title" => %{"type" => "string"},
"subtitle" => %{"type" => "string"},
"body" => %{"type" => "string"},
"actions" => %{"type" => "array"}
}
}
end
defp render_metric_schema do
%{
"type" => "object",
"properties" => %{
"label" => %{"type" => "string"},
"value" => %{"type" => "string"}
}
}
end
defp render_list_schema do
%{
"type" => "object",
"properties" => %{
"title" => %{"type" => "string"},
"items" => %{"type" => "array"}
}
}
end
defp render_tabs_schema do
%{
"type" => "object",
"properties" => %{
"title" => %{"type" => "string"},
"tabs" => %{"type" => "array"}
}
}
end
defp render_mindmap_schema do
%{
"type" => "object",
"properties" => %{
"title" => %{"type" => "string"},
"nodes" => %{"type" => "array"}
}
}
end
defp normalize_limit(value) when is_integer(value) and value > 0 and value <= 50, do: value
defp normalize_limit(_value), do: 10
defp normalize_offset(value) when is_integer(value) and value >= 0, do: value
defp normalize_offset(_value), do: 0
defp search_filters(arguments) do
%{}
|> maybe_put(:category, arguments["category"])
|> maybe_put(:tags, arguments["tags"])
|> maybe_put(:language, arguments["language"])
|> maybe_put(:missing_translation_language, arguments["missingTranslationLanguage"])
|> maybe_put(:year, arguments["year"])
|> maybe_put(:month, arguments["month"])
|> maybe_put(:status, BDS.BoundedAtoms.post_status(arguments["status"]))
|> Map.put(:offset, normalize_offset(arguments["offset"]))
|> Map.put(:limit, normalize_limit(arguments["limit"]))
end
defp search_all_counted_posts(project_id, arguments) do
filters = search_filters(arguments) |> Map.put(:offset, 0) |> Map.put(:limit, 1)
{:ok, %{total: total}} = Search.search_posts(project_id, "", filters)
filters = Map.put(filters, :limit, max(total, 1))
{:ok, result} = Search.search_posts(project_id, "", filters)
result
end
defp maybe_put(map, _key, nil), do: map
defp maybe_put(map, _key, ""), do: map
defp maybe_put(map, key, value), do: Map.put(map, key, value)
defp counted_terms(project_id, field) do
Repo.all(
from post in Post, where: post.project_id == ^project_id, select: field(post, ^field)
)
|> List.flatten()
|> Enum.reject(&blank?/1)
|> Enum.frequencies()
|> Enum.map(fn {term, count} -> %{name: term, count: count} end)
|> Enum.sort_by(&String.downcase(to_string(&1.name)))
end
defp metadata_attrs(arguments, keys) do
Enum.reduce(keys, %{}, fn key, acc ->
maybe_put(acc, String.to_atom(key), arguments[key])
end)
end
defp media_summary(%Media{} = media) do
%{
id: media.id,
filename: media.filename,
original_name: media.original_name,
mime_type: media.mime_type,
size: media.size,
width: media.width,
height: media.height,
title: media.title,
alt: media.alt,
caption: media.caption,
author: media.author,
language: media.language,
tags: media.tags || [],
created_at: media.created_at,
updated_at: media.updated_at
}
end
defp post_media(project_id, post_id) do
Repo.all(
from media in Media,
join: post_media in PostMedia,
on: post_media.media_id == media.id,
where: post_media.project_id == ^project_id and post_media.post_id == ^post_id,
order_by: [asc: post_media.sort_order, asc: media.updated_at]
)
|> Enum.map(&media_summary/1)
end
defp media_posts(media_id) do
MediaContext.list_linked_posts(media_id)
|> Enum.map(fn post ->
%{"id" => post.post_id, "title" => post.title, "sort_order" => post.sort_order}
end)
end
defp thumbnail_data_url(project_id, media, size) do
project = Repo.get!(Project, project_id)
size_key = thumbnail_size(size)
relative_path = MediaContext.thumbnail_paths(media)[size_key]
absolute_path = Path.join(project.data_path, relative_path || "")
with true <- is_binary(relative_path),
true <- File.exists?(absolute_path),
{:ok, binary} <- File.read(absolute_path) do
"data:#{thumbnail_mime(absolute_path)};base64," <> Base.encode64(binary)
else
_other -> nil
end
end
defp thumbnail_size("small"), do: :small
defp thumbnail_size("large"), do: :large
defp thumbnail_size(_size), do: :medium
defp thumbnail_mime(path) do
case Path.extname(path) |> String.downcase() do
".jpg" -> "image/jpeg"
".jpeg" -> "image/jpeg"
".png" -> "image/png"
".webp" -> "image/webp"
_other -> "application/octet-stream"
end
end
defp blank?(value), do: is_nil(value) or String.trim(to_string(value)) == ""
defp normalize_term(value), do: value |> to_string() |> String.downcase()
defp active_project_id do
Repo.one(from(project in Project, where: project.is_active == true, select: project.id))
end
end