use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
use uuid::Uuid;

#[derive(Debug, Clone, sqlx::FromRow, Serialize, Deserialize)]
pub struct Channel {
    pub id: Uuid, // Blob(16) sqlite
    #[sqlx(default)]
    pub server_id: Option<Uuid>,
    #[sqlx(default)]
    pub category_id: Option<Uuid>,
    #[sqlx(default)]
    pub position: i32,
    #[sqlx(rename = "type")]
    pub channel_type: ChannelType,
    pub name: Option<String>, // Not necessary for DMs
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}

#[derive(Debug, Clone, Serialize, Deserialize, sqlx::Type)]
#[sqlx(type_name = "text")]
#[serde(rename_all = "snake_case")]
pub enum ChannelType {
    Text,
    Voice,
    Dm
}

impl Channel {
    pub fn new_server_channel(server_id: Uuid, name: String, channel_type: ChannelType) -> Self {
        Self {
            id: Uuid::now_v7(),
            server_id: Some(server_id),
            category_id: None,
            position: 0,
            channel_type,
            name: Some(name),
            created_at: Utc::now(),
            updated_at: Utc::now()
        }
    }

    pub fn new_dm_channel() -> Self {
        Self {
            id: Uuid::now_v7(),
            server_id: None,
            category_id: None,
            channel_type: ChannelType::Dm,
            name: None,
            position: 0,
            created_at: Utc::now(),
            updated_at: Utc::now(),
        }
    }
}