from flask import Flask, jsonify, render_template, request, redirect, url_for, session
from flask_cors import CORS
from config import Config
import psycopg2

app = Flask(__name__)
app.config.from_object(Config)
app.secret_key = app.config["SECRET_KEY"]

CORS(app)

conn = psycopg2.connect(
    host="localhost",
    port=5432,
    database="ecocharge",
    user="eco",
    password="eco_pass"
)

@app.route("/")
def home():
    return jsonify({
        "message": "API EcoCharge en ligne"
    })

@app.route("/api/status")
def status():
    return jsonify({
        "project": "EcoCharge",
        "api": "ok",
        "database": "postgresql_connected"
    })

@app.route("/admin/login", methods=["GET", "POST"])
def admin_login():
    if request.method == "POST":
        username = request.form.get("username")
        password = request.form.get("password")

        if username == "admin" and password == "admin123":
            session["admin_logged_in"] = True
            return redirect(url_for("admin_dashboard"))

        return render_template("login.html", error="Identifiants incorrects")

    return render_template("login.html")

@app.route("/admin/dashboard", methods=["GET", "POST"])
def admin_dashboard():
    if not session.get("admin_logged_in"):
        return redirect(url_for("admin_login"))

    cur = conn.cursor()

    if request.method == "POST":
        min_battery = request.form.get("min_battery")
        max_temp = request.form.get("max_temp")
        min_power = request.form.get("min_power")

        cur.execute("""
            INSERT INTO settings (key, value)
            VALUES ('min_battery_voltage', %s)
            ON CONFLICT (key)
            DO UPDATE SET value = EXCLUDED.value
        """, (min_battery,))

        cur.execute("""
            INSERT INTO settings (key, value)
            VALUES ('max_battery_temperature', %s)
            ON CONFLICT (key)
            DO UPDATE SET value = EXCLUDED.value
        """, (max_temp,))

        cur.execute("""
            INSERT INTO settings (key, value)
            VALUES ('min_solar_power', %s)
            ON CONFLICT (key)
            DO UPDATE SET value = EXCLUDED.value
        """, (min_power,))

        conn.commit()

    cur.execute("SELECT value FROM settings WHERE key = 'min_battery_voltage'")
    row1 = cur.fetchone()

    cur.execute("SELECT value FROM settings WHERE key = 'max_battery_temperature'")
    row2 = cur.fetchone()

    cur.execute("SELECT value FROM settings WHERE key = 'min_solar_power'")
    row3 = cur.fetchone()

    settings = {
        "min_battery": row1[0] if row1 else "10.5",
        "max_temp": row2[0] if row2 else "45",
        "min_power": row3[0] if row3 else "5"
    }

    return render_template("admin_dashboard.html", settings=settings)

@app.route("/admin/logout")
def admin_logout():
    session.pop("admin_logged_in", None)
    return redirect(url_for("admin_login"))

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000, debug=True)