{% if tools is not defined or tools is none %}
    {{- '<|im_start|>tool_list\n<|im_end|>\n' }}
{%- else %}
    {{- '<|im_start|>tool_list\n[' }}
    {%- for tool in tools %}
        {{- '{"name": "' }}
        {{- tool.function.name }}
        {{- '", ' }}
        {{- '"description": "' }}
        {{- tool.function.description }}
        {{- '"' }}
        {%- if tool.function.parameters is defined %}
            {{- ', "parameters": ' }}
            {{- tool.function.parameters | tojson }}
        {%- endif %}
        {{- '}' }}
        {%- if not loop.last %}
            {{- ', ' }}
        {%- endif %}
    {%- endfor %}
{{- ']<|im_end|>\n' }}
{%- endif %}

{%- set ns = namespace(is_searching=true, last_query_index=messages|length - 1) %}
{%- for message in messages[::-1] %}
    {%- set index = (messages|length - 1) - loop.index0 %}
    {%- if ns.is_searching and (message.role == 'user' or message.role == 'tool') %}
        {%- set ns.last_query_index = index %}
        {%- set ns.is_searching = false %}
    {%- endif %}
{%- endfor %}

{%- for message in messages %}
    {%- if loop.index0 == 0 and message.role != 'system' %}
        {{- '<|im_start|>system\n<|im_end|>\n' }}
    {%- endif %}

    {%- if message.content is string %}
        {%- set content = message.content %}
    {%- else %}
        {%- set content = '' %}
    {%- endif %}

    {%- set reasoning_content = '' %}
    {%- if message.reasoning_content is defined and message.reasoning_content is not none %}
        {%- set reasoning_content = message.reasoning_content %}    
    {%- endif %}
    {%- if message.role == "assistant" %}
        {%- if loop.index0 > ns.last_query_index %}
            {%- if reasoning_content %}
                {{- '<|im_start|>assistant/think\n' + reasoning_content.strip('\n') + '<|im_end|>\n' }}
            {%- endif %}
        {%- endif %}

        {%- if content %}
            {{- '<|im_start|>assistant\n' + content.strip('\n') + '<|im_end|>' }}
            {%- if message.tool_calls %}
                {{- '\n' }}
            {%- else %}
                {{- '<|endofturn|>\n' }}
            {%- endif %}
        {%- endif %}

        {%- if message.tool_calls %}
            {{- '<|im_start|>assistant -> tool/function_call\n[' }}
            {%- for tool_call in message.tool_calls %}
                {%- if not loop.first %}
                    {{- ', ' }}
                {%- endif %}
                {%- if tool_call.function %}
                    {%- set tool_call = tool_call.function %}
                {%- endif %}
                {{- '{"name": "' }}
                {{- tool_call.name }}
                {{- '", "arguments": ' }}
                {%- if tool_call.arguments is string %}
                    {{- tool_call.arguments }}
                {%- else %}
                    {{- tool_call.arguments | tojson }}
                {%- endif %}
                {{- '}' }}
                {%- endfor %}
            {{- ']<|im_end|><|stop|>\n' }}

        {%- endif %}
    {%- elif message.role == "tool" %}
        {{- '<|im_start|>tool/function_call\n' + content + '<|im_end|>\n' }}
    {%- else %}
        {{- '<|im_start|>' + message.role + '\n' + content + '<|im_end|>\n<|im_start|>assistant' }}
    {%- endif %}
{%- endfor %}
{%- if add_generation_prompt %}
    {%- if force_reasoning is defined and force_reasoning is true %}
        {{- '<|im_start|>assistant/think\n' }}
    {%- elif skip_reasoning is defined and skip_reasoning is true %}
        {{- '<|im_start|>assistant\n' }}
    {%- else %}
        {{- '<|im_start|>assistant' }}
    {%- endif %}
{%- endif %}