import assert from 'node:assert/strict'
import { test } from 'node:test'

import { CanvasTexture, LinearFilter, NearestFilter } from 'three'

import {
	configureSchematicTexture,
	resolveSchematicBlockName,
	resolveSchematicMaterialTexture,
} from './resources.ts'

test('block names follow the current locale and fall back without exposing internal IDs', () => {
	const names = {
		en_us: {
			'block.minecraft.stone': 'Stone',
			'block.example.machine.frame': 'Machine Frame',
		},
		zh_cn: { 'block.minecraft.stone': '\u77f3\u5934' },
	}

	assert.equal(resolveSchematicBlockName('minecraft:stone', names, 'zh-CN'), '\u77f3\u5934')
	assert.equal(resolveSchematicBlockName('example:machine/frame', names, 'zh-CN'), 'Machine Frame')
	assert.equal(resolveSchematicBlockName('example:polished_tile', names, 'zh-CN'), 'Polished Tile')
})

test('schematic textures preserve Deepslate atlas row coordinates', () => {
	const texture = new CanvasTexture({} as HTMLCanvasElement)
	texture.flipY = true
	texture.magFilter = LinearFilter
	texture.minFilter = LinearFilter
	texture.generateMipmaps = true
	const previousVersion = texture.version

	configureSchematicTexture(texture)

	assert.equal(texture.flipY, false)
	assert.equal(texture.magFilter, NearestFilter)
	assert.equal(texture.minFilter, NearestFilter)
	assert.equal(texture.generateMipmaps, false)
	assert.ok(texture.version > previousVersion)
})

test('material previews resolve blockstate models and texture variables', () => {
	const sideUv: [number, number, number, number] = [0.25, 0.5, 0.5, 0.75]
	const resources = {
		blockDefinitions: {
			'minecraft:grass_block': {
				variants: { 'snowy=false': [{ model: 'minecraft:block/grass_block' }] },
			},
		},
		blockModels: {
			'minecraft:block/grass_block': {
				parent: 'minecraft:block/cube_bottom_top',
				textures: {
					side: '#side_texture',
					side_texture: 'minecraft:block/grass_block_side',
					top: 'minecraft:block/grass_block_top',
				},
			},
			'minecraft:block/cube_bottom_top': {
				textures: { particle: 'minecraft:block/dirt' },
			},
		},
		defaultBlockProperties: {},
		textureUvs: {
			'minecraft:block/grass_block_side': sideUv,
			'minecraft:block/grass_block_top': [0, 0, 0.25, 0.25] as [number, number, number, number],
			'minecraft:block/dirt': [0.5, 0.5, 0.75, 0.75] as [number, number, number, number],
		},
		missingTextureUv: [0, 0, 0.1, 0.1] as [number, number, number, number],
	}

	assert.deepEqual(resolveSchematicMaterialTexture('minecraft:grass_block', resources), sideUv)
})

test('material previews fall back to conventional texture names', () => {
	const uv: [number, number, number, number] = [0, 0.25, 0.25, 0.5]
	const resources = {
		blockDefinitions: {},
		blockModels: {},
		defaultBlockProperties: {},
		textureUvs: { 'example:block/polished_tile': uv },
		missingTextureUv: [0, 0, 0.1, 0.1] as [number, number, number, number],
	}

	assert.deepEqual(resolveSchematicMaterialTexture('example:polished_tile', resources), uv)
})