app.py

import gradio as gr
from io import BytesIO
import json
import os
from PIL import Image
import requests
import time
import getpass
from PIL import ImageDraw, ImageFont

# Get the API key
STABILITY_API_KEY = os.environ.get('STABILITY_API_KEY')  # Try to get from environment variable

def send_generation_request(
    host,
    params,
):
    headers = {
        "Accept": "image/*",
        "Authorization": f"Bearer {STABILITY_API_KEY}"
    }

    # Encode parameters
    files = {}
    image = params.pop("image", None)
    mask = params.pop("mask", None)
    if image is not None and image != '':
        files["image"] = open(image, 'rb')
    if mask is not None and mask != '':
        files["mask"] = open(mask, 'rb')
    if len(files)==0:
        files["none"] = ''

    # Send request
    print(f"Sending REST request to {host}...")
    response = requests.post(
        host,
        headers=headers,
        files=files,
        data=params
    )
    if not response.ok:
        raise Exception(f"HTTP {response.status_code}: {response.text}")

    return response

def generate_image(brand_name, type, coupon_info, address, prompt, negative_prompt, seed, aspect_ratio, output_format, model):
    """Generates an image using the SD3 API."""

    host = os.environ["STABILITY_HOST"]

    params = {
        "prompt": prompt,
        "negative_prompt": negative_prompt,
        "aspect_ratio": aspect_ratio,
        "seed": seed,
        "output_format": output_format,
        "model": model, # Use the selected model
        "mode": "text-to-image"
    }

    response = send_generation_request(host, params)

    # Decode response
    output_image = response.content
    finish_reason = response.headers.get("finish-reason")
    seed = response.headers.get("seed")

    # Check for NSFW classification
    if finish_reason == 'CONTENT_FILTERED':
        raise Warning("Generation failed NSFW classifier")

    # Convert image to PIL format
    image = Image.open(BytesIO(output_image))

    # Add brand info to the upper left corner
    draw = ImageDraw.Draw(image)
    font = ImageFont.truetype("./arial-font/arial.ttf", 20)  # You can change the font and size
    draw.text((10, 10), brand_name, fill=(255, 255, 255), font=font)  # Adjust position and color as needed

    # TODO: 新增 类别
    # TODO: 新增 折扣信息
    # TODO: 新增 实体店地址
    # TODO: 新增 编号控制
    # TODO: 新增 智能客服联系人QR Code
    return image

"""
Cost Rule
- SD3 Large: 2B, 6.5 credits each
- SD3 Large Turbo: 8B, 4 credits each
- SD3 Medium: 8B, 3.5 credits each
"""

# Create the Gradio interface
interface = gr.Interface(
    fn=generate_image,
    inputs=[
        gr.Textbox(label="品牌名称", placeholder="样例: AI原优舍"),
        gr.Dropdown(label="类别", choices=["服饰", "饮食", "健身", "按摩", "公益"], value="服饰"),
        gr.Textbox(label="折扣信息", placeholder="样例: 凭券全场任意两件正价八折"),
        gr.Textbox(label="实体店地址", placeholder="样例: 广州市麦栏街20号野隐大楼3层"),
        # TODO: 新增 编号控制按钮
        # TODO: 新增 智能客服联系人QR Code
        gr.Textbox(label="广告整体正向描述", placeholder="This dreamlike digital art captures a vibrant, kaleidoscopic bird in a lush rainforest"),
        gr.Textbox(label="广告整体负向描述", placeholder="Optional"),
        gr.Number(label="算法随机种子", value=0),
        gr.Dropdown(label="折扣券长宽比", choices=["21:9", "16:9", "3:2", "5:4", "1:1", "4:5", "2:3", "9:16", "9:21"], value="16:9"),
        gr.Dropdown(label="折扣券输出格式", choices=["jpeg", "png"], value="png"),
        gr.Dropdown(label="生图模型选择", choices=["sd3-large", "sd3-large-turbo", "sd3-medium"], value="sd3-medium")  # Add model dropdown
    ],
    outputs=[
        gr.Image(label="生成的折扣券"),
        #gr.Gallery(label="历史生成记录", show_label=True, elem_id="gallery")  # Add a gallery component
    ],
    title="妈妈折扣券生成器",
    description="基于认知计算广告理论，为广告主一键生成兼具品牌影响力及传播力的品牌专属折扣券。"
)

# Function to update the gallery
def update_gallery(image, gallery):
    gallery.append(image)
    return gallery

# Connect the generate_image function to the gallery update
#interface.outputs[0].click(update_gallery, inputs=[interface.outputs[0], interface.outputs[1]])
#interface.load(lambda: None).then(lambda: interface.getElementById("generated_image").click(update_gallery, inputs=[interface.getElementById("generated_image"), interface.getElementById("gallery")]))

# Launch the interface
interface.launch(share=False)