import os, logging
DEBUG = os.environ.get('DEBUG')
logging.basicConfig(
        format='[%(asctime)s] %(levelname)s %(module)s/%(funcName)s - %(message)s',
        level=logging.DEBUG if DEBUG else logging.INFO)

import requests
import subprocess

LLAMA_URL = 'http://10.55.0.105:11434/api/generate'
NOTES_DIR = '/home/tanner/notes-git/notes'
#NOTES_DIR = '/home/tanner/'


def controller_message(message):
    payload = dict(home=message)
    logging.info('Controller message: %s', message)
    r = requests.post('https://tbot.tannercollin.com/message', data=payload, timeout=10)
    if r.status_code == 200:
        return True
    else:
        logging.exception('Unable to communicate with controller! Message: ' + message)
        return False

def llama(prompt):
    data = dict(model='llama3.1', prompt=prompt, stream=False)
    try:
        r = requests.post(LLAMA_URL, json=data, timeout=20)
        r.raise_for_status()
        r = r.json()
        return r['response']
    except BaseException as e:
        logging.error('Problem with llama: {} - {}'.format(e.__class__.__name__, str(e)))
        return False


def git_diff():
    result = subprocess.run(['git', 'diff', '--cached', '-U0'], stdout=subprocess.PIPE, cwd=NOTES_DIR)
    diff = result.stdout.decode()

    if diff:
        logging.info('Analyzing diff:\n%s', diff)

    return diff

def git_add():
    result = subprocess.run(['git', 'add', '-A'], stdout=subprocess.PIPE, cwd=NOTES_DIR)

def git_commit(message):
    result = subprocess.run(['git', 'commit', '-m', message], stdout=subprocess.PIPE, cwd=NOTES_DIR)
    return result.stdout.decode()


def generate_message(diff):
    prompt = '''
Write a ONE LINE git commit message for the following diff.
Respond with only the commit message.
Do not include quotes.
Do not include file extensions.
DO NOT just say "Update notes", "Add new notes", "Refactor notes", "Make documentation updates".
Tersely summarize how each note changed.
Write in imperitive tense.
\n\n==============\n\n'''

    prompt += diff

    message = llama(prompt)

    if not message:
        logging.info('    Failed to generate')
        return False

    logging.info('Generated message: %s', message)

    if '.md' in message.lower():
        logging.info('    Message contains .md extension, aborting')
        return False
    elif 'notes/' in message.lower():
        logging.info('    Message contains notes directory, aborting')
        return False
    elif '\n' in message:
        logging.info('    Message contains new lines, aborting')
        return False

    return message



def main():
    git_add()  # add so we can diff new files

    diff = git_diff()

    if not diff:
        logging.info('No diff, exiting.')
        exit(0)

    for _ in range(5):
        message = generate_message(diff)
        if message:
            break
    else:  # for loop never broke
        msg = 'Unable to generate acceptable diff message.'
        controller_message(msg)
        logging.info(msg)
        message = 'Auto-commit, can\'t generate message'

    if DEBUG:
        logging.info('Running in debug, not actually committing.')
    else:
        git_commit(message)


if __name__ == '__main__':
    main()