added API endpoint for search (dev mode)

Gemfile

···
 gem 'irb'
 gem 'rainbow'
 
+gem 'sinatra'
+
 gem 'minisky', '~> 0.5'
 gem 'didkit', '~> 0.2', git: 'https://tangled.sh/@mackuba.eu/didkit'
+
+group :development do
+  gem 'puma'
+  gem 'rackup'
+end

Gemfile.lock

···
     minitest (5.25.5)
     mustermann (3.0.4)
       ruby2_keywords (~> 0.0.1)
+    nio4r (2.7.4)
     pg (1.6.1)
     pg (1.6.1-aarch64-linux)
     pg (1.6.1-aarch64-linux-musl)
···
     psych (5.2.6)
       date
       stringio
+    puma (6.6.1)
+      nio4r (~> 2.0)
     rack (3.2.0)
     rack-protection (4.1.1)
       base64 (>= 0.1.0)
···
     rack-session (2.1.1)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
+    rackup (2.2.1)
+      rack (>= 3)
     rainbow (3.1.1)
     rake (13.3.0)
     rdoc (6.14.2)
···
   irb
   minisky (~> 0.5)
   pg
+  puma
+  rackup
   rainbow
   rake
+  sinatra
   sinatra-activerecord (~> 2.0)
 
 BUNDLED WITH

app/models/post.rb

···
   validates_length_of :data, maximum: 10000
 
   belongs_to :user
+
+  def at_uri
+    "at://#{user.did}/app.bsky.feed.post/#{rkey}"
+  end
 end

app/server.rb

···
+require 'json'
+require 'sinatra/base'
+
+require_relative 'init'
+require_relative 'models/like'
+require_relative 'models/user'
+
+class Server < Sinatra::Application
+  register Sinatra::ActiveRecordExtension
+  set :port, 3000
+
+  PAGE_LIMIT = 5
+
+  helpers do
+    def json_response(data)
+      content_type :json
+      JSON.generate(data)
+    end
+
+    def json_error(name, message, status: 400)
+      content_type :json
+      [status, JSON.generate({ error: name, message: message })]
+    end
+  end
+
+  get '/xrpc/blue.feeds.lycan.searchPosts' do
+    headers['access-control-allow-origin'] = '*'
+
+    if settings.development?
+      user = User.find_by(did: params[:user])
+      return json_error('UserNotFound', 'Missing "user" parameter') if user.nil?
+    end
+
+    if params[:query]
+      query = params[:query].gsub('%', "\\%")
+      likes = user.likes.joins(:post).includes(:post => :user).where("text ILIKE ?", "%#{query}%").order('likes.time DESC').limit(PAGE_LIMIT)
+      post_uris = likes.map(&:post).map(&:at_uri)
+
+      json_response(posts: post_uris)
+    else
+      json_error('MissingParameter', 'Missing "query" parameter')
+    end
+  end
+end

bin/server

···
+#!/usr/bin/env ruby
+
+$LOAD_PATH.unshift(File.expand_path('..', __dir__))
+
+require 'bundler/setup'
+require 'app/server'
+
+Server.run!