import os
import json
import random

JOURNAL_PATH = "data/memory/journal.json"


def record_to_journal(entry: dict):
    if not os.path.exists(JOURNAL_PATH):
        with open(JOURNAL_PATH, "w", encoding="utf-8") as f:
            json.dump([], f)

    with open(JOURNAL_PATH, "r", encoding="utf-8") as f:
        try:
            journal = json.load(f)
        except json.JSONDecodeError:
            journal = []

    journal.append(entry)

    with open(JOURNAL_PATH, "w", encoding="utf-8") as f:
        json.dump(journal, f, indent=2)


def read_journal_entries():
    if not os.path.exists(JOURNAL_PATH):
        return []
    with open(JOURNAL_PATH, "r", encoding="utf-8") as f:
        lines = f.readlines()
    return [line.split("|", 1)[-1].strip() for line in lines if "|" in line]


def sample_journal_entries(n=5):
    """Return up to `n` random entries from the journal."""
    entries = read_journal_entries()
    return random.sample(entries, min(n, len(entries)))