import logging
import datetime
import shutil
import json

import xml.etree.ElementTree as ET
from .utils import *

CUBE_COPRO_PATH = "Projects/STM32WB_Copro_Wireless_Binaries"

MANIFEST_TEMPLATE = {
    "manifest": {"version": 0, "timestamp": 0},
    "copro": {
        "fus": {"version": {"major": 1, "minor": 2, "sub": 0}, "files": []},
        "radio": {
            "version": {
                "type": 3,
                "major": 1,
                "minor": 13,
                "sub": 0,
                "branch": 0,
                "release": 5,
            },
            "files": [],
        },
    },
}


class Copro:
    def __init__(self, mcu):
        self.mcu = mcu
        self.version = None
        self.cube_dir = None
        self.mcu_copro = None
        self.logger = logging.getLogger(self.__class__.__name__)

    def loadCubeInfo(self, cube_dir):
        if not os.path.isdir(cube_dir):
            raise Exception(f'"{cube_dir}" doesn\'t exists')
        self.cube_dir = cube_dir
        self.mcu_copro = os.path.join(self.cube_dir, CUBE_COPRO_PATH, self.mcu)
        if not os.path.isdir(self.mcu_copro):
            raise Exception(f'"{self.mcu_copro}" doesn\'t exists')
        cube_manifest_file = os.path.join(self.cube_dir, "package.xml")
        cube_manifest = ET.parse(cube_manifest_file)
        cube_package = cube_manifest.find("PackDescription")
        if not cube_package:
            raise Exception(f"Unknown Cube manifest format")
        cube_version = cube_package.get("Patch") or cube_package.get("Release")
        if not cube_version or not cube_version.startswith("FW.WB"):
            raise Exception(f"Incorrect Cube package or version info")
        cube_version = cube_version.replace("FW.WB.", "", 1)
        if cube_version != "1.13.1":
            raise Exception(f"Unknonwn cube version")
        self.version = cube_version

    def addFile(self, array, filename, **kwargs):
        source_file = os.path.join(self.mcu_copro, filename)
        destination_file = os.path.join(self.output_dir, filename)
        shutil.copyfile(source_file, destination_file)
        array.append(
            {"name": filename, "sha256": file_sha256(destination_file), **kwargs}
        )

    def bundle(self, output_dir):
        if not os.path.isdir(output_dir):
            raise Exception(f'"{output_dir}" doesn\'t exists')
        self.output_dir = output_dir
        manifest_file = os.path.join(self.output_dir, "Manifest.json")
        # Form Manifest
        manifest = dict(MANIFEST_TEMPLATE)
        manifest["manifest"]["timestamp"] = timestamp()
        # Old FUS Update
        self.addFile(
            manifest["copro"]["fus"]["files"],
            "stm32wb5x_FUS_fw_for_fus_0_5_3.bin",
            condition="==0.5.3",
            address="0x080EC000",
        )
        # New FUS Update
        self.addFile(
            manifest["copro"]["fus"]["files"],
            "stm32wb5x_FUS_fw.bin",
            condition=">0.5.3",
            address="0x080EC000",
        )
        # BLE Full Stack
        self.addFile(
            manifest["copro"]["radio"]["files"],
            "stm32wb5x_BLE_Stack_light_fw.bin",
            address="0x080D7000",
        )
        # Save manifest to
        json.dump(manifest, open(manifest_file, "w"))