use crate::models::Participant;
use crate::schema::conversation_participants;
use diesel::prelude::*;

#[derive(Queryable, Selectable, AsChangeset, Identifiable)]
#[diesel(table_name = crate::schema::participants)]
pub struct Record {
    pub id: i32,
    pub display_name: Option<String>,
    pub is_me: bool,
}

#[derive(Insertable)]
#[diesel(table_name = crate::schema::participants)]
pub struct InsertableRecord {
    pub display_name: Option<String>,
    pub is_me: bool,
}

impl From<Participant> for InsertableRecord {
    fn from(participant: Participant) -> Self {
        match participant {
            Participant::Me => InsertableRecord {
                display_name: None,
                is_me: true,
            },
            Participant::Remote { display_name, .. } => InsertableRecord {
                display_name: Some(display_name),
                is_me: false,
            },
        }
    }
}

#[derive(Identifiable, Selectable, Queryable, Associations, Debug)]
#[diesel(belongs_to(super::conversation::Record, foreign_key = conversation_id))]
#[diesel(belongs_to(Record, foreign_key = participant_id))]
#[diesel(table_name = conversation_participants)]
#[diesel(primary_key(conversation_id, participant_id))]
pub struct ConversationParticipant {
    pub conversation_id: String,
    pub participant_id: i32,
}

impl From<Record> for Participant {
    fn from(record: Record) -> Self {
        if record.is_me {
            Participant::Me
        } else {
            Participant::Remote {
                id: Some(record.id),
                display_name: record.display_name.unwrap_or_default(),
            }
        }
    }
}

impl From<Participant> for Record {
    fn from(participant: Participant) -> Self {
        match participant {
            Participant::Me => Record {
                id: 0, // This will be set by the database
                display_name: None,
                is_me: true,
            },
            Participant::Remote { display_name, .. } => Record {
                id: 0, // This will be set by the database
                display_name: Some(display_name),
                is_me: false,
            },
        }
    }
}