{%- set default_system_message = 'You are AI.' -%}{{ bos_token }}
{%- if messages[0]['role'] == 'system' %}
    {%- set system_message = messages[0]['content'] %}
    {%- set loop_messages = messages[1:] %}
{%- else %}
    {%- set system_message = default_system_message %}
    {%- set loop_messages = messages %}
{%- endif %}
{%- set user_messages = loop_messages | selectattr("role", "equalto", "user") | list %}

{% if tools is not none and tools|length > 0 %}
    {%- set tool_instructions =
          'Use the available tools appropriately to fulfill your instructions and achieve your goals by returning a JSON array pre-pended with `[TOOL_CALLS]` like this: '
          ~ '[TOOL_CALLS][{"name": "tool1", "arguments": {"p1": "val1"}}, {"name": "tool2", "arguments": {"p2": "val2", "p3": 23}}] '
          ~ 'Your available tools are: '
    -%}

    {# Build out the tool list however you want #}
    {%- set tool_instructions = tool_instructions ~ '[AVAILABLE_TOOLS]' %}
    {%- for tool in tools %}
        {%- if not loop.first %}, {% endif %}
        {%- set tool_definition = tool.function %}
        {%- set tool_instructions = tool_instructions ~ '{"type":"function","function":{' %}
        {%- for key, val in tool_definition.items() if key != "return" %}
            {%- if not loop.first %}, {% endif %}
            {%- if val is string %}
                {%- set tool_instructions = tool_instructions ~ '"' ~ key ~ '":"' ~ val ~ '"' %}
            {%- else %}
                {%- set tool_instructions = tool_instructions ~ '"' ~ key ~ '":' ~ (val|tojson) %}
            {%- endif %}
        {%- endfor %}
        {%- set tool_instructions = tool_instructions ~ '}}' %}
    {%- endfor %}
    {%- set tool_instructions = tool_instructions ~ '[/AVAILABLE_TOOLS]\n' %}

    {%- set system_message = system_message ~ tool_instructions -%}
{% endif %}
{{ '[SYSTEM_PROMPT]' ~ system_message ~ '[/SYSTEM_PROMPT]' }}

{%- for message in loop_messages %}
    {%- if message['role'] == 'user' %}
        {{- '[INST]' + message['content'] + '[/INST]' }}

    {%- elif message['role'] == 'system' %}
        {{- '[SYSTEM_PROMPT]' + message['content'] + '[/SYSTEM_PROMPT]' }}

    {%- elif message['role'] == 'assistant' %}
        {%- if message.tool_calls is defined and message.tool_calls is not none and message.tool_calls|length > 0 -%}
            [TOOL_CALLS][{{ message.tool_calls|tojson }}]
        {%- elif message['content'] is defined and message['content'] is not none -%}
            {{- message['content'] + eos_token }}
        {%- endif %}

    {%- elif message['role'] == 'tool_calls' or message.tool_calls is defined %}
        {%- if message.tool_calls is defined %}
            {%- set tool_calls = message.tool_calls %}
        {%- else %}
            {%- set tool_calls = message.content %}
        {%- endif %}
        {{- "[TOOL_CALLS] [" }}
        {%- for tool_call in tool_calls %}
            {%- set out = tool_call.function|tojson %}
            {{- out[:-1] }}
            {%- if not tool_call.id is defined or tool_call.id|length < 9 %}
                {{- raise_exception("Tool call IDs should be alphanumeric strings with length >= 9!" + tool_call.id) }}
            {%- endif %}
            {{- ', "id": "' + tool_call.id + '"}' }}
            {%- if not loop.last %}
                {{- ", " }}
            {%- else %}
                {{- "]" + eos_token }}
            {%- endif %}
        {%- endfor %}

    {%- elif message["role"] == "tool" %}
        {%- if message.content is defined and message.content.content is defined %}
            {%- set content = message.content.content %}
        {%- else %}
            {%- set content = message.content %}
        {%- endif %}
        {{- '[TOOL_RESULTS] {"content": ' + content|string + ", " }}
        {%- if not message.tool_call_id is defined or message.tool_call_id|length < 9 %}
            {{- raise_exception("Tool call IDs should be alphanumeric strings with length >= 9!" + message.tool_call_id) }}
        {%- endif %}
        {{- '"call_id": "' + message.tool_call_id + '"}[/TOOL_RESULTS]' }}

    {%- elif message["role"] == "assistant" and message.content is defined and message.content is not none %}
        {{- message["content"] + eos_token }}

    {%- elif message['role'] == 'tool' -%}
        [TOOL_CONTENT]
            {{ {"tool_call_id": message['tool_call_id'], "tool_call": message['content']}|tojson }}
        [/TOOL_CONTENT]

    {%- else %}
        {{- raise_exception('Only user, system, assistant, tool_call & tool roles are supported!') }}
    {%- endif %}
{%- endfor %}