from datetime import datetime

from django.db import connection

from django_coreprotect.models import CoWorld, GUIResult
from django_coreprotect.utils import safe_int, checkbox, time_to_form


class GUIForm:

    def __init__(self):
        self.block_break = False
        self.block_place = False
        self.chat = False
        self.chest_use = False
        self.command = False
        self.interact = False
        self.login_logout = False
        self.sign_place = False
        self.worlds = []
        self.ignore_environment = False
        self.oldest_first = False
        self.page = ""
        self.page_size = ""
        self.start = ""
        self.players = ""
        self.x = ""
        self.y = ""
        self.z = ""
        self.radius = ""
        self.blocks = ""
        self.date_from = ""
        self.date_to = ""


def gui_data(request):
    request_data = request.GET
    form = GUIForm()
    worlds = CoWorld.objects.all()

    # Actions
    form.block_break = checkbox(request_data["block_break"]) if "block_break" in request_data else False
    form.block_place = checkbox(request_data["block_place"]) if "block_place" in request_data else False
    form.chat = checkbox(request_data["chat"]) if "chat" in request_data else False
    form.chest_use = checkbox(request_data["chest_use"]) if "chest_use" in request_data else False
    form.command = checkbox(request_data["command"]) if "command" in request_data else False
    form.interact = checkbox(request_data["interact"]) if "interact" in request_data else False
    form.login_logout = checkbox(request_data["login_logout"]) if "login_logout" in request_data else False
    form.sign_place = checkbox(request_data["sign_place"]) if "sign_place" in request_data else False

    # Permissions
    if not request.user.has_perm("django_coreprotect.gui_extra"):
        form.chat = False
        form.command = False

    # Worlds
    request_worlds = request_data.getlist("world")
    for world in worlds:
        world_id = "world_{}".format(world.id)
        w = {
            "id": str(world.id),
            "world_id": world_id,
            "checked": True if str(world.id) in request_worlds else False,
            "name": world.world
        }
        form.worlds.append(w)

    # Options
    form.ignore_environment = checkbox(request_data["ignore_environment"]) if "ignore_environment" in request_data else False
    form.oldest_first = checkbox(request_data["oldest_first"]) if "oldest_first" in request_data else False

    # Limit Results
    form.page = request_data["page"] if "page" in request_data else "0"
    form.page_size = request_data["page_size"] if "page_size" in request_data else "20"
    if safe_int(form.page_size) == 0 or safe_int(form.page_size) > 1000:
        form.page_size = "1000"
    form.start = (safe_int(form.page) * safe_int(form.page_size))

    # Players
    form.players = request_data["players"] if "players" in request_data else ""

    # Coordinates
    form.x = request_data["x"] if "x" in request_data else ""
    form.y = request_data["y"] if "y" in request_data else ""
    form.z = request_data["z"] if "z" in request_data else ""
    form.radius = request_data["radius"] if "radius" in request_data else ""

    # Blocks
    form.blocks = request_data["blocks"] if "blocks" in request_data else ""

    # Date and Time
    form.date_from = time_to_form(request_data["date_from"]) if "date_from" in request_data else ""
    if form.date_from:
        form.date_from = form.date_from.timestamp()
    form.date_to = time_to_form(request_data["date_to"]) if "date_to" in request_data else ""
    if form.date_to:
        form.date_to = form.date_to.timestamp()

    return form


def gui_results(form):
    queries = []
    ignore_environment = " AND cu.user NOT LIKE '#%%' " if form.ignore_environment else ""
    oldest_first = " ASC " if form.oldest_first else " DESC "

    coords = []
    radius = form.radius if form.radius else "0"
    if form.x:
        coords.append(" x BETWEEN {0} - {1} AND {0} + {1}".format(form.x, radius))
    if form.y:
        coords.append(" y BETWEEN {0} - {1} AND {0} + {1}".format(form.y, radius))
    if form.z:
        coords.append(" z BETWEEN {0} - {1} AND {0} + {1}".format(form.z, radius))
    coords_clause = ""
    if coords:
        coords_clause = " AND ({})".format(" AND ".join(coords))

    players = []
    players_clause = ""
    if form.players:
        for player in form.players.split(","):
            players.append(player.strip())
        players_clause = " AND ({})".format(" OR ".join(["cu.user LIKE '{}%%'".format(p) for p in players]))

    blocks = []
    blocks_clause = ""
    chat_clause = ""
    command_clause = ""
    if form.blocks:
        for block in form.blocks.split(","):
            blocks.append(block.strip())
        blocks_clause = " AND ({})".format(" OR ".join(["cmm.material LIKE 'minecraft:{}%%'".format(b) for b in blocks]))
        chat_clause = " AND ({})".format(" OR ".join(["cc.message LIKE '%%{}%%'".format(b) for b in blocks]))
        command_clause = " AND ({})".format(" OR ".join(["cc.message LIKE '%%{}%%'".format(b) for b in blocks]))

    worlds_clause = ""
    worlds = [world["id"] for world in form.worlds if world["checked"]]
    if len(worlds):
        worlds_clause = " AND cw.rowid IN ({})".format(",".join(worlds))

    time_clause = ""
    if form.date_from or form.date_to:
        df, dt = form.date_from, form.date_to
        if form.date_from and not form.date_to:
            dt = datetime.now().timestamp()
        if form.date_to and not form.date_from:
            df = datetime.now().timestamp()
        time_clause = " GROUP BY unix HAVING unix BETWEEN {} AND {} ".format(df, dt)

    # Block Break, Block Place, and Interact
    block_actions = []
    if form.block_break:
        block_actions.append("0")
    if form.block_place:
        block_actions.append("1")
    if form.interact:
        block_actions.append("2")
    if len(block_actions):
        queries.append('''SELECT 
        0 AS id, "block" AS type, cb.time AS unix, cu.user AS player, cb.action, cmm.material AS data, cb.x, cb.y, cb.z, cw.world 
        FROM co_block cb 
        JOIN co_user cu ON cb.user = cu.rowid 
        JOIN co_material_map cmm ON cb.type = cmm.rowid 
        JOIN co_world cw ON cb.wid = cw.rowid 
        WHERE cb.action IN ({action}) 
        {ignore_environment} 
        {players} 
        {coords} 
        {blocks} 
        {worlds} 
        {time}
        '''.format(action=",".join(block_actions), ignore_environment=ignore_environment, players=players_clause,
                   coords=coords_clause, blocks=blocks_clause, worlds=worlds_clause, time=time_clause))

    # Chat
    if form.chat:
        queries.append('''SELECT 
        0 AS id, "chat" AS type, cc.time AS unix, cu.user AS player, "" AS action, cc.message AS data, "" AS x, "" AS y, "" AS z, "" AS world 
        FROM co_chat cc 
        JOIN co_user cu ON cc.user = cu.rowid 
        WHERE 1 = 1
        {players}
        {chat}
        {time}
        '''.format(players=players_clause, chat=chat_clause, time=time_clause))

    # Chest Use
    if form.chest_use:
        concat = 'CONCAT(cc.amount, " ", cmm.material)'
        if connection.vendor == "sqlite":
            concat = 'cc.amount || " " || cmm.material'
        queries.append('''SELECT
        0 AS id, "container" AS type, cc.time AS unix, cu.user AS player, cc.action, {concat} AS data, cc.x, cc.y, cc.z, cw.world 
        FROM co_container cc 
        JOIN co_user cu ON cc.user = cu.rowid 
        JOIN co_material_map cmm ON cc.type = cmm.rowid 
        JOIN co_world cw ON cc.wid = cw.rowid
        WHERE 1 = 1
        {worlds}
        {players}
        {coords}
        {blocks}
        {time}
        '''.format(concat=concat, worlds=worlds_clause, players=players_clause, coords=coords_clause, blocks=blocks_clause, time=time_clause))

    # Commands
    if form.command:
        queries.append('''SELECT 
        0 AS id, "command" AS type, cc.time AS unix, cu.user AS player, "" AS action, cc.message AS data, "" AS x, "" AS y, "" AS z, "" AS world 
        FROM co_command cc 
        JOIN co_user cu ON cc.user = cu.rowid 
        WHERE 1 = 1
        {players}
        {command}
        {coords}
        {time}
        '''.format(players=players_clause, command=command_clause, coords=coords_clause, time=time_clause))

    # Login/Logout
    if form.login_logout:
        queries.append('''SELECT 
        0 AS id, "session" AS type, cs.time AS unix, cu.user AS player, cs.action, "" AS data, cs.x, cs.y, cs.z, cw.world 
        FROM co_session cs 
        JOIN co_user cu ON cs.user = cu.rowid 
        JOIN co_world cw ON cs.wid = cw.rowid 
        WHERE 1 = 1
        {worlds}
        {players}
        {coords}
        {time}
        '''.format(worlds=worlds_clause, players=players_clause, coords=coords_clause, time=time_clause))

    # Sign Place
    if form.sign_place:
        queries.append('''SELECT 
        0 AS id, "sign" AS type, cs.time AS unix, cu.user AS player, "" AS action, cs.line_1 || "|" || cs.line_2 || "|" || cs.line_3 || "|" || cs.line_4 AS data, cs.x, cs.y, cs.z, cw.world 
        FROM co_sign cs 
        JOIN co_user cu ON cs.user = cu.rowid 
        JOIN co_world cw ON cs.wid = cw.rowid 
        WHERE 1 = 1
        {worlds}
        {players}
        {coords}
        {time}
        '''.format(worlds=worlds_clause, players=players_clause, coords=coords_clause, time=time_clause))

    query = " UNION ALL ".join(queries)
    if query:
        query += " ORDER BY unix {} LIMIT {}, {}".format(oldest_first, form.start, form.page_size)
    if query:
        return GUIResult.objects.raw(query)
    return []