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| """Custom video styles: writing guidance for the script, used on videos as custom:<id>. | |
| Styles are made on our one blog2video account, so b2v_styles records which workspace made each; only that | |
| workspace sees, uses, edits or deletes it. Built-in styles are read-only here, and "Your Style" (which learns from | |
| every workspace's edits) is never offered. The account-wide style selection, pin and built-in overrides are never | |
| touched (blog2video.DENIED). | |
| """ | |
| from typing import Literal | |
| from fastapi import APIRouter, Depends, HTTPException | |
| from pydantic import BaseModel, Field | |
| from app.auth import Ctx, get_ctx | |
| from app.models import B2VStyle | |
| from app.routers.videos import b2v_ready, upstream | |
| from app.services import b2v_access | |
| from app.services import blog2video as b2v | |
| router = APIRouter(prefix="/api/video-styles", tags=["videos"]) | |
| class DraftIn(BaseModel): | |
| prompt: str = Field(min_length=20, max_length=1000) | |
| class StyleIn(BaseModel): | |
| name: str = Field(min_length=1, max_length=80) | |
| guidance: str = Field(min_length=1, max_length=2000) | |
| creation_method: Literal["manual", "ai"] = "manual" | |
| source_prompt: str | None = Field(None, max_length=1000) | |
| class StylePatchIn(BaseModel): | |
| name: str = Field(min_length=1, max_length=80) | |
| guidance: str = Field(min_length=1, max_length=2000) | |
| version: int = Field(ge=0) | |
| def list_styles(ctx: Ctx = Depends(get_ctx), _: None = Depends(b2v_ready)): | |
| with upstream(): | |
| return b2v_access.visible_styles(ctx) | |
| def ai_draft(body: DraftIn, ctx: Ctx = Depends(get_ctx), _: None = Depends(b2v_ready)): | |
| """A name and guidance written from a description; nothing is saved.""" | |
| with upstream(): | |
| return b2v.request("POST", "/api/video-styles/ai-draft", json=body.model_dump(), timeout=90) | |
| def _out(s: dict) -> dict: | |
| return {"id": s.get("id"), "custom_id": s.get("custom_id"), "name": s.get("name"), "guidance": s.get("guidance"), | |
| "description": s.get("description"), "version": s.get("version"), "kind": "custom"} | |
| def create_style(body: StyleIn, ctx: Ctx = Depends(get_ctx), _: None = Depends(b2v_ready)): | |
| with upstream(): | |
| made = b2v.request("POST", "/api/video-styles/custom", json=body.model_dump()) | |
| ctx.db.add(B2VStyle(b2v_style_id=int(made["custom_id"]), workspace_id=ctx.workspace.id, name=body.name)) | |
| ctx.db.commit() | |
| return _out(made) | |
| def update_style(style_id: int, body: StylePatchIn, ctx: Ctx = Depends(get_ctx), _: None = Depends(b2v_ready)): | |
| row = b2v_access.owned_style(ctx, style_id) | |
| with upstream(): | |
| made = b2v.request("PATCH", f"/api/video-styles/custom/{style_id}", json=body.model_dump()) | |
| row.name = body.name | |
| ctx.db.commit() | |
| return _out(made) | |
| def delete_style(style_id: int, ctx: Ctx = Depends(get_ctx), _: None = Depends(b2v_ready)): | |
| row = b2v_access.owned_style(ctx, style_id) | |
| try: | |
| with upstream(): | |
| b2v.request("DELETE", f"/api/video-styles/custom/{style_id}") | |
| except HTTPException as e: | |
| if e.status_code != 404: | |
| raise | |
| ctx.db.delete(row) | |
| ctx.db.commit() | |
| return {"ok": True} | |