from flask import Flask, render_template
import json
import os
import time
import datetime
import logging
from model.brainmap import get_brainmap
from model.journal import read_journal_entries
from model.dreams import load_dreams
from model.tokenizer import Tokenizer
from model.abstraction import cluster_vocab
from model.dreams import load_dreams
from model.scheduler import get_time_until_next_action, get_next_action_label
from context.context import load_context
from reader.reader import get_books, load_progress


app = Flask(__name__)
tokenizer = Tokenizer()

next_cycle_time = time.time() + 900  # Example: 15 minutes from now


def load_loss_data():
    path = "data/logs/loss.log"
    if not os.path.exists(path):
        return []
    with open(path, "r", encoding="utf-8") as f:
        lines = f.readlines()
    return [float(line.strip().split(",")[1]) for line in lines[-50:]]


def load_vocab_growth():
    path = "data/logs/vocab_growth.log"
    if not os.path.exists(path):
        return []
    with open(path, "r", encoding="utf-8") as f:
        lines = f.readlines()
    data = []
    for line in lines:
        timestamp, vocab_size = line.strip().split(",")
        # Reformat timestamp to human-readable
        readable_time = datetime.datetime.fromtimestamp(float(timestamp)).strftime("%H:%M:%S")
        data.append((readable_time, int(vocab_size)))
    return data


def get_vocab_size():
    path = "data/memory/vocab.json"
    if not os.path.exists(path):
        return 0
    with open(path, "r", encoding="utf-8") as f:
        vocab = json.load(f)
    return len(vocab)


def update_next_cycle(seconds):
    global next_cycle_time
    next_cycle_time = time.time() + seconds


@app.route("/")
def index():
    dreams = load_dreams()
    top_dreams = dreams[:5]
    memory_size = len(load_context())
    loss_data = load_loss_data()
    progress = load_progress()
    books = get_books()
    current_book = books[0] if books else None
    current_line = progress.get(current_book, 0)
    next_cycle = get_time_until_next_action()
    next_action_label = get_next_action_label()

    return render_template("index.html",
                           vocab_size=get_vocab_size(),
                           top_dreams=top_dreams,
                           memory_size=memory_size,
                           loss_data=loss_data,
                           current_book=current_book,
                           current_line=current_line,
                           next_cycle=next_cycle,
                           next_action_label=next_action_label)


@app.route("/growth")
def growth():
    brainmap_size = len(get_brainmap())
    memory_size = len(load_context())
    vocab_growth = load_vocab_growth()

    return render_template("growth.html",
                           vocab_size=get_vocab_size(),
                           brainmap_size=brainmap_size,
                           memory_size=memory_size,
                           vocab_growth=vocab_growth)


@app.route("/brainmap")
def brainmap():
    map_data = get_brainmap()

    nodes = []
    links = []
    MIN_LINK_WEIGHT = 2  # only show links seen at least 2 times
    seen_words = set()

    for word, connections in map_data.items():
        for linked_word, weight in connections.items():
            if weight >= MIN_LINK_WEIGHT:
                links.append({
                    "source": word,
                    "target": linked_word,
                    "value": weight
                })
                seen_words.add(word)
                seen_words.add(linked_word)

    for word in seen_words:
        nodes.append({"id": word})

    return render_template("brainmap.html", nodes=json.dumps(nodes), links=json.dumps(links))


@app.route("/journal")
def journal():
    entries = read_journal_entries()
    return render_template("journal.html", entries=entries)


@app.route("/concepts")
def concepts():
    clusters = cluster_vocab(n_clusters=10)
    return render_template("concepts.html", clusters={i: cluster for i, cluster in enumerate(clusters)})


@app.route("/dreams")
def dreams():
    dreams = load_dreams()
    recent = dreams[-20:][::-1]  # Last 20 dreams, newest first
    return render_template("dreams.html", dreams=recent)


@app.route("/health")
def health():
    vocab_size = get_vocab_size()
    brainmap_size = len(get_brainmap())
    books = get_books()
    progress_data = load_progress()
    dreams = load_dreams()
    entries = read_journal_entries()

    completed_books = progress_data.get("completed", [])
    total_books = len(books)
    finished_books = len(completed_books)
    dream_count = len(dreams)
    journal_count = len(entries)

    last_dream = dreams[-1]["sentence"] if dream_count > 0 else "None yet."
    last_entry = entries[-1] if journal_count > 0 else "None yet."

    # print(f"[Health Monitor] Total Books: {total_books} | Finished Books: {finished_books}")

    return render_template("health.html",
                           vocab_size=vocab_size,
                           brainmap_size=brainmap_size,
                           total_books=total_books,
                           finished_books=finished_books,
                           dream_count=dream_count,
                           journal_count=journal_count,
                           last_dream=last_dream,
                           last_entry=last_entry)


def run_dashboard():
    log = logging.getLogger('werkzeug')
    log.setLevel(logging.ERROR)
    app.run(host="0.0.0.0", port=5000, debug=False, use_reloader=False)