# ##### BEGIN GPL LICENSE BLOCK #####
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software Foundation,
#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####

# <pep8-80 compliant>
import bpy
from bpy.types import Header, Menu, Panel
from bpy.app.translations import pgettext_iface as iface_


class TEXT_HT_header(Header):
    bl_space_type = 'TEXT_EDITOR'

    def draw(self, context):
        layout = self.layout

        st = context.space_data
        text = st.text
        is_syntax_highlight_supported = st.is_syntax_highlight_supported()
        layout.template_header()

        TEXT_MT_editor_menus.draw_collapsible(context, layout)

        layout.separator_spacer()

        if text and text.is_modified:
            row = layout.row(align=True)
            row.alert = True
            row.operator("text.resolve_conflict", text="", icon='QUESTION')

        row = layout.row(align=True)
        row.template_ID(st, "text", new="text.new",
                        unlink="text.unlink", open="text.open")

        if text:
            is_osl = text.name.endswith((".osl", ".osl"))
            if is_osl:
                row.operator("node.shader_script_update",
                             text="", icon='FILE_REFRESH')
            else:
                row = layout.row()
                row.active = is_syntax_highlight_supported
                row.operator("text.run_script", text="", icon='PLAY')

        layout.separator_spacer()

        row = layout.row(align=True)
        row.prop(st, "show_line_numbers", text="")
        row.prop(st, "show_word_wrap", text="")

        syntax = row.row(align=True)
        syntax.active = is_syntax_highlight_supported
        syntax.prop(st, "show_syntax_highlight", text="")


class TEXT_HT_footer(Header):
    bl_space_type = 'TEXT_EDITOR'
    bl_region_type = 'FOOTER'

    def draw(self, context):
        layout = self.layout

        st = context.space_data
        text = st.text
        if text:
            row = layout.row()
            if text.filepath:
                if text.is_dirty:
                    row.label(
                        text=iface_("File: *%s (unsaved)" % text.filepath),
                        translate=False,
                    )
                else:
                    row.label(
                        text=iface_("File: %s" % text.filepath),
                        translate=False,
                    )
            else:
                row.label(
                    text=iface_("Text: External")
                    if text.library
                    else iface_("Text: Internal"),
                )


class TEXT_MT_editor_menus(Menu):
    bl_idname = "TEXT_MT_editor_menus"
    bl_label = ""

    def draw(self, context):
        layout = self.layout
        st = context.space_data
        text = st.text

        layout.menu("TEXT_MT_view")
        layout.menu("TEXT_MT_text")

        if text:
            layout.menu("TEXT_MT_edit")
            layout.menu("TEXT_MT_select")
            layout.menu("TEXT_MT_format")

        layout.menu("TEXT_MT_templates")


class TEXT_PT_properties(Panel):
    bl_space_type = 'TEXT_EDITOR'
    bl_region_type = 'UI'
    bl_category = "Text"
    bl_label = "Properties"

    def draw(self, context):
        layout = self.layout
        layout.use_property_split = True
        layout.use_property_decorate = False
        st = context.space_data

        if not st.text:
            layout.active = False

        st = context.space_data

        col = layout.column(align=False, heading="Margin")
        row = col.row(align=True)
        sub = row.row(align=True)
        sub.prop(st, "show_margin", text="")
        sub = sub.row(align=True)
        sub.active = st.show_margin
        sub.prop(st, "margin_column", text="")

        layout.prop(st, "font_size")
        layout.prop(st, "tab_width")

        text = st.text
        if text:
            layout.prop(text, "indentation")


class TEXT_PT_find(Panel):
    bl_space_type = 'TEXT_EDITOR'
    bl_region_type = 'UI'
    bl_category = "Text"
    bl_label = "Find & Replace"

    def draw(self, context):
        layout = self.layout
        st = context.space_data

        # find
        col = layout.column()
        row = col.row(align=True)
        row.prop(st, "find_text", icon='VIEWZOOM', text="")
        row.operator("text.find_set_selected", text="", icon='EYEDROPPER')
        col.operator("text.find")

        layout.separator()

        # replace
        col = layout.column()
        row = col.row(align=True)
        row.prop(st, "replace_text", icon='DECORATE_OVERRIDE', text="")
        row.operator("text.replace_set_selected", text="", icon='EYEDROPPER')

        row = col.row(align=True)
        row.operator("text.replace")
        row.operator("text.replace", text="Replace All").all = True

        layout.separator()

        # settings
        row = layout.row(align=True)
        if not st.text:
            row.active = False
        row.prop(st, "use_match_case", text="Case", toggle=True)
        row.prop(st, "use_find_wrap", text="Wrap", toggle=True)
        row.prop(st, "use_find_all", text="All", toggle=True)


class TEXT_MT_view_navigation(Menu):
    bl_label = "Navigation"

    def draw(self, _context):
        layout = self.layout

        layout.operator("text.move", text="Top").type = 'FILE_TOP'
        layout.operator("text.move", text="Bottom").type = 'FILE_BOTTOM'

        layout.separator()

        layout.operator("text.move", text="Line Begin").type = 'LINE_BEGIN'
        layout.operator("text.move", text="Line End").type = 'LINE_END'

        layout.separator()

        layout.operator("text.move", text="Previous Line").type = 'PREVIOUS_LINE'
        layout.operator("text.move", text="Next Line").type = 'NEXT_LINE'

        layout.separator()

        layout.operator("text.move", text="Previous Word").type = 'PREVIOUS_WORD'
        layout.operator("text.move", text="Next Word").type = 'NEXT_WORD'


class TEXT_MT_view(Menu):
    bl_label = "View"

    def draw(self, context):
        layout = self.layout

        st = context.space_data

        layout.prop(st, "show_region_ui")

        layout.separator()

        layout.prop(st, "show_line_numbers")
        layout.prop(st, "show_word_wrap")
        syntax = layout.column()
        syntax.active = st.is_syntax_highlight_supported()
        syntax.prop(st, "show_syntax_highlight")
        layout.prop(st, "show_line_highlight")

        layout.separator()

        layout.menu("TEXT_MT_view_navigation")

        layout.separator()

        layout.menu("INFO_MT_area")


class TEXT_MT_text(Menu):
    bl_label = "Text"

    def draw(self, context):
        layout = self.layout

        st = context.space_data
        text = st.text

        layout.operator("text.new", text="New", icon='FILE_NEW')
        layout.operator("text.open", text="Open...", icon='FILE_FOLDER')

        if text:
            layout.separator()
            layout.operator("text.reload")

            layout.separator()
            layout.operator("text.save", icon='FILE_TICK')
            layout.operator("text.save_as", text="Save As...")

            if text.filepath:
                layout.separator()
                layout.operator("text.make_internal")

            layout.separator()
            layout.prop(text, "use_module")

            layout.prop(st, "use_live_edit")

            layout.separator()
            layout.operator("text.run_script")


class TEXT_MT_templates_py(Menu):
    bl_label = "Python"

    def draw(self, _context):
        self.path_menu(
            bpy.utils.script_paths(subdir="templates_py"),
            "text.open",
            props_default={"internal": True},
            filter_ext=lambda ext: (ext.lower() == ".py")
        )


class TEXT_MT_templates_osl(Menu):
    bl_label = "Open Shading Language"

    def draw(self, _context):
        self.path_menu(
            bpy.utils.script_paths(subdir="templates_osl"),
            "text.open",
            props_default={"internal": True},
            filter_ext=lambda ext: (ext.lower() == ".osl")
        )


class TEXT_MT_templates(Menu):
    bl_label = "Templates"

    def draw(self, _context):
        layout = self.layout
        layout.menu("TEXT_MT_templates_py")
        layout.menu("TEXT_MT_templates_osl")


class TEXT_MT_select(Menu):
    bl_label = "Select"

    def draw(self, _context):
        layout = self.layout

        layout.operator("text.select_all", text="All")
        layout.operator("text.select_line", text="Line")
        layout.operator("text.select_word", text="Word")

        layout.separator()

        layout.operator("text.move_select", text="Top").type = 'FILE_TOP'
        layout.operator("text.move_select", text="Bottom").type = 'FILE_BOTTOM'

        layout.separator()

        layout.operator("text.move_select", text="Line Begin").type = 'LINE_BEGIN'
        layout.operator("text.move_select", text="Line End").type = 'LINE_END'

        layout.separator()

        layout.operator("text.move_select", text="Previous Line").type = 'PREVIOUS_LINE'
        layout.operator("text.move_select", text="Next Line").type = 'NEXT_LINE'

        layout.separator()

        layout.operator("text.move_select", text="Previous Word").type = 'PREVIOUS_WORD'
        layout.operator("text.move_select", text="Next Word").type = 'NEXT_WORD'


class TEXT_MT_format(Menu):
    bl_label = "Format"

    def draw(self, _context):
        layout = self.layout

        layout.operator("text.indent")
        layout.operator("text.unindent")

        layout.separator()

        layout.operator("text.comment_toggle")

        layout.separator()

        layout.operator_menu_enum("text.convert_whitespace", "type")


class TEXT_MT_edit_to3d(Menu):
    bl_label = "Text to 3D Object"

    def draw(self, _context):
        layout = self.layout

        layout.operator("text.to_3d_object",
                        text="One Object",
                        ).split_lines = False
        layout.operator("text.to_3d_object",
                        text="One Object Per Line",
                        ).split_lines = True


class TEXT_MT_edit(Menu):
    bl_label = "Edit"

    @classmethod
    def poll(cls, context):
        return context.space_data.text is not None

    def draw(self, _context):
        layout = self.layout

        layout.operator("ed.undo")
        layout.operator("ed.redo")

        layout.separator()

        layout.operator("text.cut")
        layout.operator("text.copy", icon='COPYDOWN')
        layout.operator("text.paste", icon='PASTEDOWN')
        layout.operator("text.duplicate_line")

        layout.separator()

        layout.operator("text.move_lines", text="Move Line(s) Up").direction = 'UP'
        layout.operator("text.move_lines", text="Move Line(s) Down").direction = 'DOWN'

        layout.separator()

        layout.operator("text.start_find", text="Find & Replace...")
        layout.operator("text.find_set_selected")
        layout.operator("text.jump", text="Jump To...")

        layout.separator()

        layout.operator("text.autocomplete")

        layout.separator()

        layout.menu("TEXT_MT_edit_to3d")


class TEXT_MT_context_menu(Menu):
    bl_label = ""

    def draw(self, _context):
        layout = self.layout

        layout.operator_context = 'INVOKE_DEFAULT'

        layout.operator("text.cut")
        layout.operator("text.copy", icon='COPYDOWN')
        layout.operator("text.paste", icon='PASTEDOWN')
        layout.operator("text.duplicate_line")

        layout.separator()

        layout.operator("text.move_lines", text="Move Line(s) Up").direction = 'UP'
        layout.operator("text.move_lines", text="Move Line(s) Down").direction = 'DOWN'

        layout.separator()

        layout.operator("text.indent")
        layout.operator("text.unindent")

        layout.separator()

        layout.operator("text.comment_toggle")

        layout.separator()

        layout.operator("text.autocomplete")


classes = (
    TEXT_HT_header,
    TEXT_HT_footer,
    TEXT_MT_edit,
    TEXT_MT_editor_menus,
    TEXT_PT_find,
    TEXT_PT_properties,
    TEXT_MT_view,
    TEXT_MT_view_navigation,
    TEXT_MT_text,
    TEXT_MT_templates,
    TEXT_MT_templates_py,
    TEXT_MT_templates_osl,
    TEXT_MT_select,
    TEXT_MT_format,
    TEXT_MT_edit_to3d,
    TEXT_MT_context_menu,
)

if __name__ == "__main__":  # only for live edit.
    from bpy.utils import register_class
    for cls in classes:
        register_class(cls)
