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use crate::{config::ResourceType, InMemoryCache, UpdateCache};
use twilight_model::{
    gateway::payload::incoming::{IntegrationCreate, IntegrationDelete, IntegrationUpdate},
    guild::GuildIntegration,
    id::{GuildId, IntegrationId},
};

impl InMemoryCache {
    fn cache_integration(&self, guild_id: GuildId, integration: GuildIntegration) {
        self.guild_integrations
            .entry(guild_id)
            .or_default()
            .insert(integration.id);

        crate::upsert_guild_item(
            &self.integrations,
            guild_id,
            (guild_id, integration.id),
            integration,
        );
    }

    fn delete_integration(&self, guild_id: GuildId, integration_id: IntegrationId) {
        if self
            .integrations
            .remove(&(guild_id, integration_id))
            .is_some()
        {
            if let Some(mut integrations) = self.guild_integrations.get_mut(&guild_id) {
                integrations.remove(&integration_id);
            }
        }
    }
}

impl UpdateCache for IntegrationCreate {
    fn update(&self, cache: &InMemoryCache) {
        if !cache.wants(ResourceType::INTEGRATION) {
            return;
        }

        if let Some(guild_id) = self.guild_id {
            crate::upsert_guild_item(
                &cache.integrations,
                guild_id,
                (guild_id, self.id),
                self.0.clone(),
            );
        }
    }
}

impl UpdateCache for IntegrationDelete {
    fn update(&self, cache: &InMemoryCache) {
        if !cache.wants(ResourceType::INTEGRATION) {
            return;
        }

        cache.delete_integration(self.guild_id, self.id);
    }
}

impl UpdateCache for IntegrationUpdate {
    fn update(&self, cache: &InMemoryCache) {
        if !cache.wants(ResourceType::INTEGRATION) {
            return;
        }

        if let Some(guild_id) = self.guild_id {
            cache.cache_integration(guild_id, self.0.clone());
        }
    }
}