// 隨機抽取函式
function pick(arr) {
  return arr[Math.floor(Math.random() * arr.length)];
}

var generateSeed = Math.floor(Math.random() * 999999999999999);

// 場景類型
const scenes = [
  "lush forest scenery, tall ancient trees with dense green foliage, a gentle stream flowing through the forest",
  "vast ocean cliff at sunset, dramatic waves crashing against rocks, sea spray in the air",
  "snow-capped mountain peak, frozen lake reflection, pine trees covered in snow",
  "golden wheat field at dawn, gentle breeze, rolling hills in the distance",
  "ancient cherry blossom garden, fallen petals floating in the wind, stone lanterns",
  "mystical desert oasis, palm trees, crystal clear pond, sand dunes at dusk",
  "autumn maple forest, vibrant red and orange leaves, misty mountain backdrop",
  "tropical waterfall paradise, lush green jungle, rainbow in the mist",
  "lavender field at golden hour, windmill in the distance, purple haze",
  "bamboo forest, soft morning light filtering through, peaceful stone path"
];

// 光線氛圍
const lightings = [
  "soft sunlight filtering through the leaves creating god rays",
  "dramatic golden hour lighting, long shadows",
  "misty morning fog, diffused soft light",
  "moonlight reflection on water, silver glow",
  "overcast magical light, ethereal atmosphere",
  "sunset warm orange and pink sky"
];

// 特效細節
const details = [
  "small glowing particles floating in the air, moss-covered ground and rocks",
  "fireflies glowing in the dusk, dewdrops on leaves",
  "falling cherry blossom petals, gentle wind ripples on water",
  "sparkling snow crystals, frozen breath in cold air",
  "floating dandelion seeds, wildflowers in the foreground",
  "morning dew on spider webs, tiny mushrooms on the ground"
];

// 色調
const colorTones = [
  "rich greens and natural tones",
  "warm golden and amber tones",
  "cool blue and silver tones",
  "vibrant purple and pink tones",
  "earthy brown and orange tones",
  "soft pastel tones"
];

const selectedScene    = pick(scenes);
const selectedLighting = pick(lightings);
const selectedDetail   = pick(details);
const selectedColor    = pick(colorTones);


const prompt = `masterpiece, best quality, score_7, safe, anime style, ${selectedScene}, ${selectedLighting}, ${selectedDetail}, highly detailed textures, soft lighting, calm and magical atmosphere, ${selectedColor}`;


const payload = {
  Data:{
  "prompt": {
  "8": {
    "inputs": {
      "samples": [
        "19",
        0
      ],
      "vae": [
        "15",
        0
      ]
    },
    "class_type": "VAEDecode",
    "_meta": {
      "title": "VAE解码"
    }
  },
  "11": {
    "inputs": {
      "text": prompt,
      "clip": [
        "45",
        0
      ]
    },
    "class_type": "CLIPTextEncode",
    "_meta": {
      "title": "CLIP Text Encode (Positive Prompt)"
    }
  },
  "12": {
    "inputs": {
      "text": "worst quality, low quality, score_1, score_2, score_3, blurry, jpeg artifacts, sepia",
      "clip": [
        "45",
        0
      ]
    },
    "class_type": "CLIPTextEncode",
    "_meta": {
      "title": "CLIP Text Encode (Negative Prompt)"
    }
  },
  "15": {
    "inputs": {
      "vae_name": "qwen_image_vae.safetensors"
    },
    "class_type": "VAELoader",
    "_meta": {
      "title": "加载VAE"
    }
  },
  "19": {
    "inputs": {
      "seed": generateSeed,
      "steps": 30,
      "cfg": 4,
      "sampler_name": "er_sde",
      "scheduler": "simple",
      "denoise": 1,
      "model": [
        "44",
        0
      ],
      "positive": [
        "11",
        0
      ],
      "negative": [
        "12",
        0
      ],
      "latent_image": [
        "28",
        0
      ]
    },
    "class_type": "KSampler",
    "_meta": {
      "title": "K采样器"
    }
  },
  "28": {
    "inputs": {
      "width": 1024,
      "height": 1024,
      "batch_size": 1
    },
    "class_type": "EmptyLatentImage",
    "_meta": {
      "title": "空Latent图像"
    }
  },
  "44": {
    "inputs": {
      "unet_name": "anima-preview2.safetensors",
      "weight_dtype": "default"
    },
    "class_type": "UNETLoader",
    "_meta": {
      "title": "UNet加载器"
    }
  },
  "45": {
    "inputs": {
      "clip_name": "qwen_3_06b_base.safetensors",
      "type": "stable_diffusion",
      "device": "default"
    },
    "class_type": "CLIPLoader",
    "_meta": {
      "title": "加载CLIP"
    }
  },
  "46": {
    "inputs": {
      "filename_prefix": "Anima",
      "images": [
        "8",
        0
      ]
    },
    "class_type": "SaveImage",
    "_meta": {
      "title": "保存图像"
    }
  }
},
  "client_id": "n8n-client"
    
  }

};

return { 
  json: payload
};

const raw = $input.first().json;

// data 本身是字串，parse 它
const data = typeof raw === 'string' ? JSON.parse(raw) : raw;


// 再取第一個 key 就是 ID
const promptId = Object.keys(data)[0];
console.log(promptId);

var fileName = $input.first().json[promptId].outputs["46"].images[0].filename;

return {
   fileName: fileName
};