import os
from subprocess import (call)
from .pre_base import BasePreFlight
from .error import (KiPlotConfigurationError)
from .gs import (GS)
from .kiplot import (check_script)
from .misc import (CMD_PCBNEW_PRINT_LAYERS, URL_PCBNEW_PRINT_LAYERS, PDF_PCB_PRINT)
from kiplot.macros import macros, document, output_class  # noqa: F401
from . import log

logger = log.get_logger(__name__)


@output_class
class PDF_Pcb_Print(BaseOutput):  # noqa: F821
    """ PDF PCB Print (Portable Document Format)
        Exports the PCB to the most common exhange format. Suitable for printing.
        This is the main format to document your PCB.
        This output is what you get from the 'File/Print' menu in pcbnew. """
    def __init__(self, name, type, description):
        super(PDF_Pcb_Print, self).__init__(name, type, description)
        # We need layers, so we define it
        self._layers = None
        # Options
        with document:
            self.output_name = ''
            """ filename for the output PDF (the name of the PCB if empty) """  # pragma: no cover

    def config(self, outdir, options, layers):
        super().config(outdir, options, layers)
        # We need layers
        if not self._layers:
            raise KiPlotConfigurationError("Missing `layers` list")

    def run(self, output_dir, board):
        check_script(CMD_PCBNEW_PRINT_LAYERS, URL_PCBNEW_PRINT_LAYERS, '1.4.1')
        # Verify the inner layers
        layer_cnt = board.GetCopperLayerCount()
        for l in self._layers:
            l.get_layer_id_from_name(layer_cnt)
        # Output file name
        output = self.output_name
        if not output:
            output = os.path.splitext(os.path.basename(GS.pcb_file))[0]+'.pdf'
        output = os.path.abspath(os.path.join(output_dir, output))
        cmd = [CMD_PCBNEW_PRINT_LAYERS, 'export', '--output_name', output]
        if BasePreFlight.get_option('check_zone_fills'):
            cmd.append('-f')
        cmd.extend([GS.pcb_file, output_dir])
        if GS.debug_enabled:
            cmd.insert(1, '-vv')
            cmd.insert(1, '-r')
        # Add the layers
        for l in self._layers:
            cmd.append(l.name)
        logger.debug('Executing: '+str(cmd))
        ret = call(cmd)
        if ret:
            logger.error(CMD_PCBNEW_PRINT_LAYERS+' returned %d', ret)
            exit(PDF_PCB_PRINT)