###
# Copyright (c) 2021, John Burwell
# All rights reserved.
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# modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
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#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# POSSIBILITY OF SUCH DAMAGE.

###

from supybot.test import PluginTestCase


class ChatTestCase(PluginTestCase):
    plugins = ('Chat',)

    def test_truncate_messages_within_limit(self):
        from plugins.Chat.plugin import truncate_messages
        messages = [{"role": "user", "content": "Hello"}]
        result = truncate_messages(messages, max_tokens=10)
        self.assertEqual(result, messages)

    def test_truncate_messages_exceeds_limit(self):
        from plugins.Chat.plugin import truncate_messages
        messages = [
            {"role": "user", "content": "Hello"},
            {"role": "user", "content": "This is a very long message that exceeds the token limit."}
        ]
        result = truncate_messages(messages, max_tokens=5)
        self.assertEqual(result, [{"role": "user", "content": "Hello"}])

    def test_truncate_messages_empty(self):
        from plugins.Chat.plugin import truncate_messages
        messages = []
        result = truncate_messages(messages, max_tokens=10)
        self.assertEqual(result, [])

    def test_system_prompt_replacement(self):
        # Simulate system prompt replacement
        from plugins.Chat.plugin import Chat
        plugin = self.irc.getCallback('Chat')
        plugin.registryValue = lambda key: {
            "system_prompt": "You are $bot_name in $channel_name."
        }.get(key, "")

        system_prompt = plugin.registryValue("system_prompt")
        system_prompt = system_prompt.replace("$bot_name", "TestBot").replace("$channel_name", "#test")
        self.assertEqual(system_prompt, "You are TestBot in #test.")

    def test_join_logic(self):
        # Simulate join logic for multi-line responses
        from plugins.Chat.plugin import Chat
        plugin = self.irc.getCallback('Chat')
        plugin.registryValue = lambda key: {
            "join_string": " / "
        }.get(key, "")

        response = "Line 1\nLine 2\nLine 3"
        lines = response.splitlines()
        joined_response = plugin.registryValue("join_string").join(line.strip() for line in lines if line.strip())
        self.assertEqual(joined_response, "Line 1 / Line 2 / Line 3")


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