__author__ = 'thoth'

# http://blender.stackexchange.com/questions/53947/how-to-import-image-data-into-blender-from-file-importer-script/53991

import bpy


def image_for(fname):
    for img in bpy.data.images:
        if img.filepath==fname:
            return img;
    return bpy.data.images.load(fname)

def node_of_type(nodes, type):
    for node in nodes:
        if node.type == type:
            return node
    return None

def mission1(fname):

    mat = bpy.data.materials.get("material")
    if mat is None:
        mat = bpy.data.materials.new("material")

    mat.use_nodes = True
    nodes = mat.node_tree.nodes

    n1 = node_of_type(nodes, "TEX_IMAGE")
    if n1 is None:
        n1 = nodes.new("ShaderNodeTexImage")

    n1.location = (-200,0)
    n1.image = image_for(fname)

    bsdf = node_of_type(nodes, 'BSDF_DIFFUSE')

    mat.node_tree.links.new(bsdf.inputs[0], n1.outputs[0])

    coord = node_of_type(nodes, 'TEX_COORD')
    if coord is None:
        coord = nodes.new('ShaderNodeTexCoord')
    coord.location = (-400,0)

    mat.node_tree.links.new(n1.inputs['Vector'], coord.outputs['UV'])

    return mat


mat = mission1("/home/thoth/art/dancing-bear/bear384.png")
bpy.context.active_object.data.materials[0] = mat