{# --- System Prompt Handling --- #}
{%- if messages and messages[0]['role'] == 'system' %}
  {%- set remaining_messages = messages[1:] %}
{%- else %}
  {%- set remaining_messages = messages %}
{%- endif %}

{%- if tools %}
{{- '<|im_start|>system\n' }}
  {%- if messages[0].role == 'system' %}
    {{- messages[0].content + '\n' }}
  {%- endif %}
# Tools
You may call one or more functions to assist with the user query. You are provided with function signatures within <tools></tools> XML tags.
<tools>
{%- for tool in tools %}
{{- "" }}
{{ tool | tojson }}
{%- endfor %}
{{- "" }}
</tools>
For each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:
<tool_call>
{"name": <function-name>, "arguments": <args-json-object>}
</tool_call>
{{- '<|im_end|>\n' }}
{%- else %}
    {%- if messages[0].role == 'system' %}
        {{- '<|im_start|>system\n' + messages[0].content + '<|im_end|>\n' }}
    {%- endif %}
{%- endif %}

{# --- Render remaining messages --- #}
{%- for message in remaining_messages %}
  {%- if message['role'] == 'user' %}
    {{- '<|im_start|>' + message['role'] + '\n' + message['content'] + '<|im_end|>\n' }}
  {%- elif message['role'] == 'assistant' %}
    {{- '<|im_start|>' + message['role'] +'\n' }}
    {%- if message.get('content','') %}
        {{- message['content'] + '\n' }}
    {%- endif %}
    {%- if tools and message.tool_calls %}
      {%- for tool_call in message.tool_calls %}
          {%- if tool_call.function is defined %}
              {%- set tool_call = tool_call.function %}
          {%- endif %}
          {{-'<tool_call>\n' }}
          {{- '{"name": "'+ tool_call.name + '", "arguments":' }}
          {%- if tool_call.arguments is string -%}
          {{ tool_call.arguments }}
          {%- else -%}
          {{ tool_call.arguments | tojson }}
          {%- endif -%}
          {{- '}' }}
          {{- '\n</tool_call>\n' }}
      {%- endfor %}
    {%- endif %}
    {%- if not loop.last %}
      {{- '<|im_end|>' + '\n' }}
    {%- else %}
      {{- '<|im_end|>' }}
    {%- endif %}
  {%- elif message['role'] == 'tool' %}
    {# Tool responses treated as user messages #}
    {%- if (loop.index0 == 0) or (messages[loop.index0 - 1].role != "tool") %}
        {{- '<|im_start|>user' }}
    {%- endif %}
    {{- '\n<tool_response>\n' + message['content'] + '\n</tool_response>' }}
    {%- if loop.last or (messages[loop.index0 + 1].role != "tool") %}
        {{- '<|im_end|>\n' }}
    {%- endif %}
  {%- endif %}
  {# --- Add generation prompt after last message if requested --- #}
  {%- if loop.last and add_generation_prompt %}
    {{- '<|im_start|>assistant\n' }}
  {%- endif %}
{%- endfor %}