import define from "../../define.js";
import { ApiError } from "../../error.js";
import { Channels, ChannelFollowings } from "../../../../models/index.js";
import { publishUserEvent } from "../../../../services/stream.js";
export const meta = {
    tags: [
        "channels"
    ],
    requireCredential: true,
    kind: "write:channels",
    errors: {
        noSuchChannel: {
            message: "No such channel.",
            code: "NO_SUCH_CHANNEL",
            id: "19959ee9-0153-4c51-bbd9-a98c49dc59d6"
        }
    }
};
export const paramDef = {
    type: "object",
    properties: {
        channelId: {
            type: "string",
            format: "misskey:id"
        }
    },
    required: [
        "channelId"
    ]
};
export default define(meta, paramDef, async (ps, user)=>{
    const channel = await Channels.findOneBy({
        id: ps.channelId
    });
    if (channel == null) {
        throw new ApiError(meta.errors.noSuchChannel);
    }
    await ChannelFollowings.delete({
        followerId: user.id,
        followeeId: channel.id
    });
    publishUserEvent(user.id, "unfollowChannel", channel);
});
