import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/kling-video/v2.0/image-to-video", {
  input: {
    prompt: "The person slowly turns their head and smiles warmly",
    image_url: "https://example.com/portrait.jpg",
    duration: "5",
    aspect_ratio: "16:9"
  }
});

console.log(result.video.url);

import fal_client

result = fal_client.subscribe(
    "fal-ai/kling-video/v2.0/image-to-video",
    arguments={
        "prompt": "The person slowly turns their head and smiles",
        "image_url": "https://example.com/portrait.jpg",
        "duration": "5",
        "aspect_ratio": "16:9"
    }
)
print(result["video"]["url"])

const result = await fal.subscribe("fal-ai/kling-video/v2.5/pro/image-to-video", {
  input: {
    prompt: "The car drives forward along the mountain road, camera follows",
    image_url: "https://example.com/car-scene.jpg",
    duration: "5",
    aspect_ratio: "16:9",
    negative_prompt: "static, frozen, distorted"
  }
});

const result = await fal.subscribe("fal-ai/kling-video/v2.6/pro/image-to-video", {
  input: {
    prompt: "The waterfall cascades down with a gentle roar, birds fly past",
    image_url: "https://example.com/waterfall.jpg",
    duration: "5",
    aspect_ratio: "16:9"
  }
});

console.log(result.video.url);
console.log(result.audio?.url);  // Native audio

const result = await fal.subscribe("fal-ai/minimax-video/image-to-video", {
  input: {
    prompt: "The cat stretches and yawns, then walks forward",
    image_url: "https://example.com/sleeping-cat.jpg",
    prompt_optimizer: true  // Auto-enhance prompt
  }
});

result = fal_client.subscribe(
    "fal-ai/minimax-video/image-to-video",
    arguments={
        "prompt": "The cat stretches and yawns",
        "image_url": "https://example.com/cat.jpg",
        "prompt_optimizer": True
    }
)

const result = await fal.subscribe("fal-ai/ltx-video/image-to-video", {
  input: {
    prompt: "The flowers sway gently in the breeze",
    image_url: "https://example.com/flower-field.jpg",
    negative_prompt: "static, frozen",
    num_inference_steps: 30,
    guidance_scale: 7.5
  }
});

const result = await fal.subscribe("fal-ai/ltx-video/v2/image-to-video", {
  input: {
    prompt: "Smoke rises and swirls from the chimney",
    image_url: "https://example.com/cabin.jpg",
    num_inference_steps: 35,
    guidance_scale: 7.0
  }
});

const result = await fal.subscribe("fal-ai/runway-gen3/turbo/image-to-video", {
  input: {
    prompt: "The model walks confidently down the runway",
    image_url: "https://example.com/fashion-shot.jpg",
    duration: 5
  }
});

const result = await fal.subscribe("fal-ai/luma-dream-machine", {
  input: {
    prompt: "The magical portal opens with swirling energy",
    image_url: "https://example.com/fantasy-scene.jpg",
    aspect_ratio: "16:9",
    loop: true  // Create seamless loop
  }
});

result = fal_client.subscribe(
    "fal-ai/luma-dream-machine",
    arguments={
        "prompt": "The portal opens with swirling energy",
        "image_url": "https://example.com/scene.jpg",
        "aspect_ratio": "16:9",
        "loop": True
    }
)

const result = await fal.subscribe("fal-ai/wan/v2.1/1.3b/image-to-video", {
  input: {
    prompt: "The leaves flutter and fall from the tree",
    image_url: "https://example.com/autumn-tree.jpg",
    num_frames: 81
  }
});

const result = await fal.subscribe("fal-ai/stable-video-diffusion", {
  input: {
    image_url: "https://example.com/landscape.jpg",
    motion_bucket_id: 127,  // 0-255, higher = more motion
    fps: 7,
    num_frames: 25
  }
});

const result = await fal.subscribe("fal-ai/stable-video-diffusion-xt", {
  input: {
    image_url: "https://example.com/scene.jpg",
    motion_bucket_id: 127,
    num_frames: 25,
    fps: 6
  }
});

const result = await fal.subscribe("fal-ai/cogvideox-5b/image-to-video", {
  input: {
    prompt: "The astronaut waves to the camera",
    image_url: "https://example.com/astronaut.jpg",
    num_inference_steps: 50,
    guidance_scale: 6.0
  }
});

[Subject action] + [Motion quality] + [Camera movement] + [Atmosphere]

// Good: Specific motion
"The woman slowly turns her head to the right and smiles, gentle breeze moves her hair"

// Bad: Vague
"The woman moves"

interface ImageToVideoInput {
  // Required
  prompt: string;
  image_url: string;

  // Duration (varies by model)
  duration?: number | string;

  // Dimensions
  aspect_ratio?: "16:9" | "9:16" | "1:1";

  // Quality
  negative_prompt?: string;
  num_inference_steps?: number;
  guidance_scale?: number;

  // Model-specific
  prompt_optimizer?: boolean;  // MiniMax
  loop?: boolean;              // Luma
  motion_bucket_id?: number;   // SVD (0-255)
  fps?: number;                // SVD
  num_frames?: number;         // SVD, Wan

  // Reproducibility
  seed?: number;
}

// 1. Generate a portrait image
const portrait = await fal.subscribe("fal-ai/flux/dev", {
  input: {
    prompt: "Professional headshot of a business woman, neutral expression, studio lighting",
    image_size: "portrait_4_3"
  }
});

// 2. Animate the portrait
const video = await fal.subscribe("fal-ai/kling-video/v2.5/pro/image-to-video", {
  input: {
    prompt: "She slowly turns her head, makes eye contact with camera, and gives a warm professional smile",
    image_url: portrait.images[0].url,
    duration: "5",
    aspect_ratio: "16:9"
  }
});

console.log(video.video.url);

// Animate product image
const result = await fal.subscribe("fal-ai/minimax-video/image-to-video", {
  input: {
    prompt: "The camera slowly rotates around the product, highlighting details, studio lighting",
    image_url: "https://example.com/product-shot.jpg",
    prompt_optimizer: true
  }
});

// Create ambient nature video
const result = await fal.subscribe("fal-ai/luma-dream-machine", {
  input: {
    prompt: "Gentle breeze moves through the grass, clouds drift slowly overhead, peaceful ambient motion",
    image_url: "https://example.com/landscape.jpg",
    aspect_ratio: "16:9",
    loop: true  // Perfect for background video
  }
});

// Quick preview with faster model
const preview = await fal.subscribe("fal-ai/stable-video-diffusion", {
  input: {
    image_url: sourceImage,
    motion_bucket_id: 100
  }
});

console.log("Preview:", preview.video.url);

// If satisfied, use higher quality model
const final = await fal.subscribe("fal-ai/kling-video/v2.6/pro/image-to-video", {
  input: {
    prompt: "Refined motion description based on preview",
    image_url: sourceImage,
    duration: "5"
  }
});