Module: Legion::LLM::API::Namespaces::OpenAI::Conversations::Items

Extended by:
Legion::Logging::Helper
Defined in:
lib/legion/llm/api/namespaces/openai/conversations/items.rb

Class Method Summary collapse

Class Method Details

.registered(app) ⇒ Object

rubocop:disable Metrics/AbcSize



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
 
# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 17

def self.registered(app) # rubocop:disable Metrics/AbcSize
  log.debug('[llm][api][namespaces][openai][items] registering routes')

  # POST /v1/conversations/:id/items
  app.post '/v1/conversations/:id/items' do
    require_llm!
    conv_id = params[:id]
    body    = parse_request_body
    validate_required!(body, :role, :content)

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    role    = body[:role].to_sym
    content = body[:content]

    msg = Inference::Conversation.append(conv_id, role: role, content: content)
    log.debug("[llm][api][openai][items] action=create conv_id=#{conv_id} item_id=#{msg[:id]} role=#{role}")

    content_type :json
    status 200
    Legion::JSON.dump({
                        id:         msg[:id],
                        object:     'conversation.item',
                        conv_id:    conv_id,
                        role:       role.to_s,
                        content:    content,
                        created_at: msg[:created_at].to_i
                      })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.create')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  # GET /v1/conversations/:id/items (list)
  app.get '/v1/conversations/:id/items' do
    require_llm!
    conv_id = params[:id]
    limit   = params[:limit]&.to_i || 100
    after   = params[:after]

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    # Check conversation tombstone
    conv_meta = Inference::Conversation.read_metadata(conv_id) || {}
    if conv_meta[:title] == '__deleted__'
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    msgs = Inference::Conversation.messages(conv_id)
    msgs = msgs.reject { |m| m[:__deleted__] }

    if after
      idx = msgs.index { |m| m[:id] == after }
      msgs = msgs[(idx + 1)..] if idx
    end

    msgs = msgs.first(limit)
    log.debug("[llm][api][openai][items] action=list conv_id=#{conv_id} count=#{msgs.size}")

    content_type :json
    status 200
    Legion::JSON.dump({
                        object:   'list',
                        data:     msgs.map { |m| Items.serialize_item(m, conv_id) },
                        has_more: false,
                        first_id: msgs.first&.dig(:id),
                        last_id:  msgs.last&.dig(:id)
                      })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.list')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  # GET /v1/conversations/:id/items/:item_id
  app.get '/v1/conversations/:id/items/:item_id' do
    require_llm!
    conv_id = params[:id]
    item_id = params[:item_id]

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    msgs = Inference::Conversation.raw_messages(conv_id)
    msg  = msgs.find { |m| m[:id] == item_id }

    unless msg
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Item '#{item_id}' not found.",
                                        type: 'invalid_request_error', code: 'item_not_found' } })
    end

    log.debug("[llm][api][openai][items] action=get item_id=#{item_id}")
    content_type :json
    status 200
    Legion::JSON.dump(Items.serialize_item(msg, conv_id))
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.get')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  # DELETE /v1/conversations/:id/items/:item_id
  app.delete '/v1/conversations/:id/items/:item_id' do
    require_llm!
    conv_id = params[:id]
    item_id = params[:item_id]

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    msgs = Inference::Conversation.raw_messages(conv_id)
    msg  = msgs.find { |m| m[:id] == item_id }

    unless msg
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Item '#{item_id}' not found.",
                                        type: 'invalid_request_error', code: 'item_not_found' } })
    end

    # Tombstone: mark deleted; item stays in chain but hidden from normal list
    msg[:__deleted__] = true
    log.debug("[llm][api][openai][items] action=delete item_id=#{item_id}")

    content_type :json
    status 200
    Legion::JSON.dump({ id: item_id, object: 'conversation.item', deleted: true })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.delete')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  log.debug('[llm][api][namespaces][openai][items] routes registered')
rescue StandardError => e
  handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.register')
end

.serialize_assistant_with_tools(msg, base) ⇒ Object 



201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
 
# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 201

def self.serialize_assistant_with_tools(msg, base)
  # Convert { role: :assistant, content: ..., tool_calls: [...] }
  # → { type: "message", content: [{ type: "text", ... }, { type: "tool_use", ... }] }
  blocks = []
  blocks << { type: 'text', text: msg[:content].to_s } unless msg[:content].to_s.empty?

  msg[:tool_calls].each do |tc|
    blocks << {
      type:  'tool_use',
      id:    tc[:id] || tc['id'],
      name:  tc[:name] || tc['name'],
      input: tc[:arguments] || tc['arguments'] || {}
    }
  end

  base.merge(
    type:    'message',
    content: blocks
  )
end

.serialize_item(msg, conv_id) ⇒ Object 



168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
 
# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 168

def self.serialize_item(msg, conv_id)
  base = {
    id:         msg[:id],
    object:     'conversation.item',
    conv_id:    conv_id,
    role:       msg[:role].to_s,
    content:    msg[:content],
    created_at: msg[:created_at]&.to_i
  }

  # Tool result messages: role :tool → type "tool_result" with tool_use_id
  return serialize_tool_result(msg, base) if msg[:role].to_s == 'tool'

  # Assistant messages with tool_calls → structured content_blocks
  return serialize_assistant_with_tools(msg, base) if msg[:tool_calls]

  # Everything else: plain message item (backward-compatible)
  base.merge(type: 'message')
end

.serialize_to_content_blocks(content) ⇒ Object 



222
223
224
225
226
 
# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 222

def self.serialize_to_content_blocks(content)
  return [{ type: 'text', text: content }] if content.is_a?(String)

  content.is_a?(Array) ? content.map { |block| serialize_to_content_blocks(block) }.flatten : [{ type: 'text', text: content.to_s }]
end

.serialize_tool_result(msg, base) ⇒ Object 



188
189
190
191
192
193
194
195
196
197
198
199
 
# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 188

def self.serialize_tool_result(msg, base)
  # Convert { role: :tool, content: ..., tool_call_id: ..., name: ... }
  # → { type: "tool_result", tool_use_id: ..., content: [{ type: "text", text: ... }] }
  content = serialize_to_content_blocks(msg[:content])

  base.merge(
    type:        'tool_result',
    tool_use_id: msg[:tool_call_id],
    name:        msg[:name],
    content:     content
  )
end