ED_LRR/ed_lrr_gui/gui/main.py

import csv
import gzip
import multiprocessing as MP
import os
import pathlib
import queue
import sys
from sys import exit
from datetime import datetime, timedelta
from urllib.request import Request, urlopen

import _ed_lrr
import ed_lrr_gui
import ed_lrr_gui.config as cfg
import requests as RQ
from ed_lrr_gui import Preprocessor, Router
from ed_lrr_gui.gui.ed_lrr import Ui_ED_LRR
from PyQt5.QtCore import QObject, Qt, QThread, QTimer, pyqtSignal
from PyQt5.QtGui import QColor, QPalette,QIcon
from PyQt5.QtWidgets import (
    QAction,
    QApplication,
    QFileDialog,
    QMainWindow,
    QMessageBox,
    QProgressDialog,
    QTreeWidgetItem,
)


def sizeof_fmt(num, suffix="B"):
    for unit in ["", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"]:
        if abs(num) < 1024.0:
            return "{:.02f}{}{}".format(num, unit, suffix)
        num /= 1024.0
    return "{:.02f}{}{}".format(num, "Yi", suffix)


def t_round(dt):
    return dt - dt % timedelta(seconds=1)


class ProgressDialog(QProgressDialog):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.setWindowModality(Qt.WindowModal)


class Job(QObject):
    progress = pyqtSignal("PyQt_PyObject")

    def __init__(self, app, main_window, cls, *args, **kwargs):
        super().__init__()
        self.job = cls(*args, **kwargs)
        self.timer = QTimer(app)
        self.app = app
        self.main_window = main_window
        self.timer.timeout.connect(self.interval)
        self.timer.start(100)
        self.last_val = None
        self.progress_dialog = None
        self.handle_progess = None
        self.state = {}

    def setup_progress(self, handle_progess):
        self.progress.connect(
            lambda *args, **kwargs: handle_progess(self, *args, **kwargs)
        )

    def start(self):
        if self.progress_dialog is None:
            self.progress.connect(
                lambda *args, **kwargs: print("PROGRESS:", *args, **kwargs)
            )
        self.started = datetime.today()
        return self.job.start()

    def cancel(self):
        self.job.terminate()
        self.job = None

    def done(self):
        return (self.job.is_alive() == False) and (self.job.queue.empty())

    def interval(self):
        while True:
            try:
                res = self.job.queue.get(True, 0.1)
            except queue.Empty:
                return
            if res == self.last_val:
                continue
            self.state.update(res)
            self.progress.emit(self.state)
            self.last_val = res


class DownloadThread(QThread):
    progress = pyqtSignal("PyQt_PyObject")

    def __init__(self, systems_url, systems_file, bodies_url, bodies_file):
        super().__init__()
        self.systems_url = systems_url
        self.systems_file = systems_file
        self.bodies_url = bodies_url
        self.bodies_file = bodies_file
        self.running = True

    def __del__(self):
        self.wait()

    def stop(self):
        self.running = False

    def run(self):
        dl_jobs = [
            (self.systems_url, self.systems_file),
            (self.bodies_url, self.bodies_file),
        ]
        for url, dest in dl_jobs:
            outfile = url.split("/")[-1]
            size = RQ.head(url, headers={"Accept-Encoding": "None"})
            size.raise_for_status()
            size = int(size.headers.get("Content-Length", 0))
            with open(dest, "wb") as of:
                resp = RQ.get(url, stream=True)
                for chunk in resp.iter_content(1024 * 1024):
                    of.write(chunk)
                    self.progress.emit(
                        {"done": of.tell(), "size": size, "outfile": outfile}
                    )
                    if not self.running:
                        return


class App(QApplication):
    def __init__(self):
        super().__init__(sys.argv)
        self.setStyle("Fusion")
        self.setup_styles()

    def set_style(self, style):
        print("LOAD:", style)
        self.setPalette(self.styles[style])

    def setup_styles(self):
        self.styles = {}
        styles = {
            "Dark": {
                "Window": QColor(53, 53, 53),
                "WindowText": Qt.white,
                "Base": QColor(15, 15, 15),
                "AlternateBase": QColor(53, 53, 53),
                "ToolTipBase": Qt.white,
                "ToolTipText": Qt.white,
                "Text": Qt.white,
                "Button": QColor(53, 53, 53),
                "ButtonText": Qt.white,
                "BrightText": Qt.red,
                "Highlight": QColor(255, 128, 0),
                "HighlightedText": Qt.black,
            }
        }
        for style, colors in styles.items():
            palette = QPalette()
            for entry, color in colors.items():
                palette.setColor(getattr(QPalette, entry), color)
                if color == Qt.darkGray:
                    palette.setColor(
                        QPalette.Disabled, getattr(QPalette, entry), QColor(53, 53, 53)
                    )
                else:
                    palette.setColor(
                        QPalette.Disabled, getattr(QPalette, entry), Qt.darkGray
                    )
            self.styles[style] = palette
        self.styles["Light"] = self.style().standardPalette()


class ED_LRR(Ui_ED_LRR):
    dl_thread = None
    diag_prog = None
    dl_started = None
    system_found = pyqtSignal("PyQt_PyObject")

    def __init__(self):
        super().__init__()
        self.config = cfg.load()
        self.jobs = {}

    def new_job(self, cls, *args, **kwargs):
        print("CREATE JOB:", cls, args, kwargs)
        name = cls.__name__
        if name in self.jobs and self.jobs[name].done():
            del self.jobs[name]
        if not name in self.jobs:
            self.jobs[name] = Job(self.app, self.main_window, cls, *args, **kwargs)
            return self.jobs[name]

    def get_open_file(self, filetypes, callback=None):
        fileName, _ = QFileDialog.getOpenFileName(
            self.main_window,
            "Open file",
            str(cfg.data_dir),
            filetypes,
            options=QFileDialog.DontUseNativeDialog,
        )
        if callback:
            return callback(fileName)
        return fileName

    def get_save_file(self, filetypes, callback=None):
        fileName, _ = QFileDialog.getSaveFileName(
            self.main_window,
            "Save file",
            str(cfg.data_dir),
            filetypes,
            options=QFileDialog.DontUseNativeDialog,
        )
        if callback:
            return callback(fileName)
        return fileName

    def set_sys_lst(self, path):
        if path not in self.config.history_out_path:
            self.config.history_out_path.append(path)
            self.inp_sys_lst.addItem(path)
            self.inp_out_pp.addItem(path)
        self.inp_sys_lst.setCurrentText(path)
        self.inp_out_pp.setCurrentText(path)

    def set_bodies_file(self, path):
        if path not in self.config.history_bodies_path:
            self.config.history_bodies_path.append(path)
            self.inp_bodies_pp.addItem(path)

    def set_systems_file(self, path):
        if path not in self.config.history_systems_path:
            self.config.history_systems_path.append(path)
            self.inp_systems_pp.addItem(path)

    def update_dropdowns(self):
        return

    def log(self, *args):
        t = datetime.today()
        msg_t = "[{}] {}".format(t, str.format(*args))
        self.txt_log.append(msg_t)

    def set_comp_mode(self, _):
        if self.rd_comp.isChecked():
            comp_mode = "Compute Route"
            self.btn_add.setText("Add")
        if self.rd_precomp.isChecked():
            comp_mode = "Precompute Graph"
            self.btn_add.setText("Select")
        self.log("COMP_MODE", comp_mode)
        self.lst_sys.setEnabled(self.rd_comp.isChecked())
        self.btn_rm.setEnabled(self.rd_comp.isChecked())
        self.cmb_mode.setEnabled(self.rd_comp.isChecked())
        self.chk_permute.setEnabled(self.rd_comp.isChecked())
        self.lbl_keep.setEnabled(self.rd_comp.isChecked())
        self.lbl_mode.setEnabled(self.rd_comp.isChecked())
        self.chk_permute_keep_first.setEnabled(self.rd_comp.isChecked())
        self.chk_permute_keep_last.setEnabled(self.rd_comp.isChecked())
        self.set_route_mode(self.rd_precomp.isChecked() or None)

    def set_route_mode(self, mode=None):
        if mode == None:
            mode = self.cmb_mode.currentText()
        self.lbl_greedyness.setEnabled(mode == "A*-Search")
        self.sld_greedyness.setEnabled(mode == "A*-Search")

    def set_greedyness(self, value):
        self.lbl_greedyness.setText("Greedyness Factor ({:.0%})".format(value / 100))

    @property
    def systems(self):
        ret = []
        for n in range(self.lst_sys.topLevelItemCount()):
            ret.append(self.sys_to_dict(n))
        return ret

    def sys_to_dict(self, n):
        header = [
            self.lst_sys.headerItem().data(c, 0)
            for c in range(self.lst_sys.headerItem().columnCount())
        ]
        system = [
            self.lst_sys.topLevelItem(n).data(c, 0)
            for c in range(self.lst_sys.topLevelItem(n).columnCount())
        ]
        ret = dict(zip(header, system))
        ret["id"] = getattr(self.lst_sys.topLevelItem(n), "__id__", None)
        ret.pop(None, None)
        return ret

    def error(self, msg):
        QMessageBox.critical(self.main_window, "ERROR!", msg)

    def get_sys_list(self):
        if not self.inp_sys_lst.currentText():
            self.error("System list is required!")
            return
        path = pathlib.Path(self.inp_sys_lst.currentText())
        if not path.exists():
            self.error("System list does not exist, run download and preprocess first!")
            return
        return path

    def route_progress(self, job, state):
        print("RP:", job, state)

    def run(self):
        if not all(s["Type"] for s in self.systems):
            self.error('Not all systens have been resolved, please click "Search All"')
            return
        print(self.systems)
        systems = [str(s["id"]) for s in self.systems]
        jump_range = self.sb_range.value()
        mode = self.cmb_mode.currentText()
        primary = self.chk_primary.isChecked()
        keep_first = self.chk_permute_keep_first.isChecked()
        keep_last = self.chk_permute_keep_last.isChecked()
        permute = self.chk_permute.isChecked()
        greedyness = (
            self.sld_greedyness.value() / 100
            if self.sld_greedyness.isEnabled()
            else None
        )
        path = self.get_sys_list()
        if path is None:
            return
        precomp = None
        path = str(path)
        mode = {
            "Breadth-First Search": "bfs",
            "A*-Search": "astar",
            "Greedy-Search": "greedy",
        }[mode]
        print(
            systems,
            jump_range,
            mode,
            primary,
            permute,
            (keep_first, keep_last),
            greedyness,
            path,
            precomp,
        )
        route_job = self.new_job(
            Router,
            systems,
            jump_range,
            0.1,
            mode,
            primary,
            permute,
            keep_first,
            keep_last,
            greedyness,
            precomp,
            path,
        )
        if route_job:
            self.route_progress_dialog = ProgressDialog(
                "Computing route...", "Cancel", 0, 100, self.main_window
            )
            self.route_progress_dialog.canceled.connect(route_job.cancel)
            route_job.start()
            self.route_progress_dialog.show()
        else:
            self.error("Another route job is already running!")

    def find_sys_by_names(self, names):
        t_s = datetime.today()
        if not self.get_sys_list():
            return None
        # TODO: start thread/subprocess
        ret = _ed_lrr.find_sys(names, self.inp_sys_lst.currentText())
        print("Took:", datetime.today() - t_s)
        return ret

    def resolve_systems(self):
        # TODO: show spinner
        names = []
        for n in range(self.lst_sys.topLevelItemCount()):
            names.append(self.sys_to_dict(n)["Name"])
        systems = self.find_sys_by_names(names)
        if systems is None:
            return
        for i, name in enumerate(names):
            _, system = systems[name]
            self.lst_sys.topLevelItem(i).setData(0, 0, system["system"])
            self.lst_sys.topLevelItem(i).setData(1, 0, system["star_type"])
            self.lst_sys.topLevelItem(i).__id__ = system["id"]
        # diff, item = self.find_sys_by_name(name)
        # print("Found", (diff, item))

    def add_system(self):
        name = self.inp_sys.text()
        item = QTreeWidgetItem(self.lst_sys, [name, None])
        item.resolved = False
        item.setFlags(item.flags() & ~Qt.ItemIsDropEnabled)

    def remove_system(self):
        root = self.lst_sys.invisibleRootItem()
        for item in self.lst_sys.selectedItems():
            root.removeChild(item)

    def dl_canceled(self):
        if self.dl_thread:
            print("Cancel!")
            try:
                self.dl_thread.progress.disconnect()
            except TypeError:
                pass
            self.dl_thread.stop()
            self.dl_thread.wait()
            self.diag_prog.close()
            self.dl_thread = None
            self.diag_prog = None
            self.dl_started = None

    def handle_dl_progress(self, args):
        filename = os.path.split(args["outfile"])[-1]
        if self.diag_prog is None:
            self.diag_prog = ProgressDialog("", "Cancel", 0, 1000, self.main_window)
            if self.dl_thread:
                self.diag_prog.canceled.connect(self.dl_canceled)
            self.diag_prog.show()
        t_elapsed = datetime.today() - self.dl_started
        rate = args["done"] / t_elapsed.total_seconds()
        remaining = (args["size"] - args["done"]) / rate
        rate = round(rate, 2)
        # print(rate, remaining)
        try:
            t_rem = timedelta(seconds=remaining)
        except OverflowError:
            t_rem = "-"
        msg = "Downloading {} [{}/{}] ({}/s)\n[{}/{}]".format(
            filename,
            sizeof_fmt(args["done"]),
            sizeof_fmt(args["size"]),
            sizeof_fmt(rate),
            t_round(t_elapsed),
            t_round(t_rem),
        )
        self.diag_prog.setLabelText(msg)
        self.diag_prog.setWindowTitle("Downloading EDSM Dumps")
        self.diag_prog.setValue((args["done"] * 1000) // args["size"])

    def run_download(self):
        if self.dl_thread:
            return
        self.dl_started = datetime.today()
        self.dl_thread = DownloadThread(
            self.inp_systems_dl.currentText(),
            self.inp_systems_dest_dl.currentText(),
            self.inp_bodies_dl.currentText(),
            self.inp_bodies_dest_dl.currentText(),
        )
        self.dl_thread.progress.connect(self.handle_dl_progress)
        self.dl_thread.start()
        print(".")

    def update_permute_chk(self, state):
        self.chk_permute_keep_first.setEnabled(state)
        self.chk_permute_keep_last.setEnabled(state)
        self.lbl_keep.setEnabled(state)

    def setup_signals(self):
        self.btn_download.clicked.connect(self.run_download)
        self.inp_systems_dest_dl.setCurrentText(r"D:\devel\rust\ed_lrr_gui\DL\s.json")
        self.inp_bodies_dest_dl.setCurrentText(r"D:\devel\rust\ed_lrr_gui\DL\b.json")
        self.set_greedyness(self.sld_greedyness.value())
        self.cmb_mode.currentTextChanged.connect(self.set_route_mode)
        self.rd_comp.toggled.connect(self.set_comp_mode)
        self.rd_precomp.toggled.connect(self.set_comp_mode)
        self.sld_greedyness.valueChanged.connect(self.set_greedyness)
        self.btn_go.clicked.connect(self.run)
        self.btn_add.clicked.connect(self.add_system)
        self.btn_rm.clicked.connect(self.remove_system)
        self.chk_permute.stateChanged.connect(self.update_permute_chk)
        self.btn_search.clicked.connect(self.resolve_systems)
        self.btn_out_browse_pp.clicked.connect(
            lambda: self.get_save_file("CSV File (*.csv)", self.set_sys_lst)
        )
        self.btn_sys_lst_browse.clicked.connect(
            lambda: self.get_open_file("CSV File (*.csv)", self.set_sys_lst)
        )

        self.btn_bodies_browse_pp.clicked.connect(
            lambda: self.get_open_file("JSON File (*.json)", self.set_bodies_file)
        )
        self.btn_bodies_dest_browse_dl.clicked.connect(
            lambda: self.get_save_file("JSON File (*.json)", self.set_bodies_file)
        )
        self.btn_systems_browse_pp.clicked.connect(
            lambda: self.get_open_file("JSON File (*.json)", self.set_systems_file)
        )
        self.btn_systems_dest_browse_dl.clicked.connect(
            lambda: self.get_save_file("JSON File (*.json)", self.set_systems_file)
        )

    def handle_close(self):
        cfg.write(self.config)
        print("BYEEEEEE!")

    def setup_styles(self, win, app):
        for name in app.styles:
            action = QAction(app)
            action.setObjectName("action_load_style_" + name)
            action.setText(name)
            action.triggered.connect(lambda _, name=name: app.set_style(name))
            self.menuStyle.addAction(action)

    def setupUi(self, MainWindow, app):
        super().setupUi(MainWindow)
        self.update_dropdowns()
        self.main_window = MainWindow
        self.app = app
        self.setup_signals()
        self.lst_sys.setHeaderLabels(["Name", "Type"])
        self.set_route_mode()
        self.update_permute_chk(self.chk_permute.isChecked())
        self.setup_styles(MainWindow, app)


def main():
    MP.freeze_support()
    app = App()
    app.setWindowIcon(QIcon(r'D:\devel\rust\ed_lrr_gui\icon\icon.ico'))
    MainWindow = QMainWindow()
    MainWindow.setWindowIcon(QIcon(r'D:\devel\rust\ed_lrr_gui\icon\icon.ico'))
    ui = ED_LRR()
    ui.setupUi(MainWindow, app)
    MainWindow.show()
    ret = app.exec_()
    ui.handle_close()
    exit(ret)


if __name__ == "__main__":
    main()