# SPDX-License-Identifier: GPL-2.0-only

"""
A 3D font helper
"""

bl_info = {
    "name": "Font3D",
    "author": "Jakob Schlötter, Studio Pointer*",
    "version": (0, 0, 1),
    "blender": (4, 1, 0),
    "location": "wherever it may be",
    "description": "Does Font3D stuff",
    "category": "Typography",
}

import bpy
import math
import io
import functools
from bpy.types import Panel
from bpy.app.handlers import persistent
from random import uniform

import time
import datetime

def get_timestamp():
    return datetime.datetime.fromtimestamp(time.time()).strftime('%Y.%m.%d-%H:%M:%S')

class SharedVariables():
    fonts: dict = {}
    def __init__(self, **kv):
        self.__dict__.update(kv)

shared = SharedVariables()

def mapRange(in_value, in_min, in_max, out_min, out_max, clamp=False):
    output = out_min + ((out_max - out_min) / (in_max - in_min)) * (in_value - in_min)
    if clamp:
            if out_min < out_max:
                    return min(out_max, max(out_min, output))
            else:
                    return max(out_max, min(out_min, output))
    else:
            return output

class FONT3D_OT_Font3D(bpy.types.Operator):
    """Font 3D"""
    bl_idname = "font3d.font3d"
    bl_label = "Font 3D"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):
        global shared

        print("Font3d execute()")

        scene = bpy.context.scene

        file_dir = scene.font3d.file_dir
        print(f"file_dir: {file_dir}")

        return {'FINISHED'}


class FONT3D_settings(bpy.types.PropertyGroup):
    font_path: bpy.props.StringProperty(name="Font path",
        description="Where is the font",
        default="",
        maxlen=1024,
        subtype="FILE_PATH")

class FONT3D_PT_panel(bpy.types.Panel):
    bl_label = "Panel for Font3D"
    bl_category = "Font3D"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"

    def draw(self, context):
        layout = self.layout
        wm = context.window_manager
        scene = context.scene

        font3d = scene.font3d
        layout.label(text="Load FontFile:")
        layout.row().prop(font3d, "font_path")
        layout.row().operator('font3d.loadfont', text='Load Font')
        layout.label(text='DEBUG')
        layout.row().operator('font3d.testfont', text='Test Font')

class FONT3D_OT_LoadFont(bpy.types.Operator):
    """Load Font 3D"""
    bl_idname = "font3d.loadfont"
    bl_label = "Load Font"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):
        global shared
        scene = bpy.context.scene

        print(f"loading da font at path {scene.font3d.font_path}")

        currentObjects = []
        for ob in bpy.data.objects:
            currentObjects.append(ob.name)
        bpy.ops.import_scene.gltf(filepath=scene.font3d.font_path)

        newObjects = []

        fontcollection = bpy.data.collections.new("Font3D")
        scene.collection.children.link(fontcollection)

        font = {
            "name": "",
            "glyphs": []
        }

        for o in bpy.data.objects:
            if o.name not in currentObjects:
                if (o.parent == None):
                    print(f"found root node --> {o.name}")
                    font['name'] = o.name
                elif o.parent.name.startswith("glyphs"):
                    print(f"loading glyph --> {o.name}")
                    font['glyphs'].append(o)
                newObjects.append(o.name)
                scene.collection.objects.unlink(o)
                fontcollection.objects.link(o)

        try:
            shared.fonts
        except:
            shared.fonts = {}
        shared.fonts[font['name']] = font

        return {'FINISHED'}

class FONT3D_OT_TestFont(bpy.types.Operator):
    """Test Font 3D"""
    bl_idname = "font3d.testfont"
    bl_label = "Test Font"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):
        global shared
        scene = bpy.context.scene

        print(shared.fonts)

        return {'FINISHED'}

classes = (
            FONT3D_OT_Font3D,
            FONT3D_settings,
            FONT3D_PT_panel,
            FONT3D_OT_TestFont,
            FONT3D_OT_LoadFont
           )

def register():
    for cls in classes:
        bpy.utils.register_class(cls)
    bpy.types.Scene.font3d = bpy.props.PointerProperty(type=FONT3D_settings)
    # would love to properly auto start this, but IT DOES NOT WORK
    # if load_handler not in bpy.app.handlers.load_post:
        # bpy.app.handlers.load_post.append(load_handler)

def unregister():
    # would love to properly auto start this, but IT DOES NOT WORK
    # if load_handler in bpy.app.handlers.load_post:
        # bpy.app.handlers.load_post.remove(load_handler)
    for cls in classes:
        bpy.utils.unregister_class(cls)

    del bpy.types.Scene.font3d

if __name__ == '__main__':
    register()