"""Video generation API methods."""

from __future__ import annotations

from typing import Any, Optional, Tuple

from freepik_cli.api.client import FreepikClient
from freepik_cli.api.models import (
    VIDEO_POST_ENDPOINTS,
    VIDEO_STATUS_ENDPOINTS,
    VideoModel,
    get_output_urls,
    get_status,
    get_task_id,
)


class VideoAPI:
    def __init__(self, client: FreepikClient) -> None:
        self._client = client

    def generate(
        self,
        model: VideoModel,
        image_b64: str,
        prompt: Optional[str] = None,
        duration: int = 5,
        aspect_ratio: str = "16:9",
        seed: Optional[int] = None,
    ) -> str:
        """Submit an image-to-video task. Returns task_id."""
        payload: dict[str, Any] = {
            "image": image_b64,
        }
        if prompt:
            payload["prompt"] = prompt
        if duration:
            payload["duration"] = str(duration)
        if aspect_ratio:
            payload["aspect_ratio"] = aspect_ratio
        if seed is not None:
            payload["seed"] = seed

        endpoint = VIDEO_POST_ENDPOINTS[model]
        raw = self._client.post(endpoint, json=payload)
        return get_task_id(raw)

    def get_status(self, model: VideoModel, task_id: str) -> Tuple[str, dict[str, Any]]:
        """Poll status. Returns (status_str, raw_response)."""
        endpoint = VIDEO_STATUS_ENDPOINTS[model].format(task_id=task_id)
        raw = self._client.get(endpoint)
        return get_status(raw), raw

    def get_output_urls(self, raw: dict[str, Any]) -> list[str]:
        return get_output_urls(raw)