add: communities list page

TODO(ui): implement community creation, community viewing, community posting
TODO(ui): implement profile following, followers, and posts feed

crates/core/src/model/journal_permissions.rs

@@ -1,112 +0,0 @@
-use bitflags::bitflags;
-use serde::{
-    Deserialize, Deserializer, Serialize,
-    de::{Error as DeError, Visitor},
-};
-
-bitflags! {
-    /// Fine-grained journal permissions built using bitwise operations.
-    #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
-    pub struct JournalPermission: u32 {
-        const DEFAULT = 1 << 0;
-        const ADMINISTRATOR = 1 << 1;
-        const MEMBER = 1 << 2;
-        const MANAGE_POSTS = 1 << 3;
-        const MANAGE_ROLES = 1 << 4;
-
-        const _ = !0;
-    }
-}
-
-impl Serialize for JournalPermission {
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: serde::Serializer,
-    {
-        serializer.serialize_u32(self.bits())
-    }
-}
-
-struct JournalPermissionVisitor;
-impl<'de> Visitor<'de> for JournalPermissionVisitor {
-    type Value = JournalPermission;
-
-    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-        formatter.write_str("u32")
-    }
-
-    fn visit_u32<E>(self, value: u32) -> Result<Self::Value, E>
-    where
-        E: DeError,
-    {
-        if let Some(permission) = JournalPermission::from_bits(value) {
-            Ok(permission)
-        } else {
-            Ok(JournalPermission::from_bits_retain(value))
-        }
-    }
-
-    fn visit_i32<E>(self, value: i32) -> Result<Self::Value, E>
-    where
-        E: DeError,
-    {
-        if let Some(permission) = JournalPermission::from_bits(value as u32) {
-            Ok(permission)
-        } else {
-            Ok(JournalPermission::from_bits_retain(value as u32))
-        }
-    }
-
-    fn visit_u64<E>(self, value: u64) -> Result<Self::Value, E>
-    where
-        E: DeError,
-    {
-        if let Some(permission) = JournalPermission::from_bits(value as u32) {
-            Ok(permission)
-        } else {
-            Ok(JournalPermission::from_bits_retain(value as u32))
-        }
-    }
-}
-
-impl<'de> Deserialize<'de> for JournalPermission {
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        deserializer.deserialize_any(JournalPermissionVisitor)
-    }
-}
-
-impl JournalPermission {
-    /// Join two [`JournalPermission`]s into a single `u32`.
-    pub fn join(lhs: JournalPermission, rhs: JournalPermission) -> JournalPermission {
-        lhs | rhs
-    }
-
-    /// Check if the given `input` contains the given [`JournalPermission`].
-    pub fn check(self, permission: JournalPermission) -> bool {
-        if (self & JournalPermission::ADMINISTRATOR) == JournalPermission::ADMINISTRATOR {
-            // has administrator permission, meaning everything else is automatically true
-            return true;
-        }
-
-        (self & permission) == permission
-    }
-
-    /// Check if the given [`JournalPermission`] qualifies as "Member" status.
-    pub fn check_member(self) -> bool {
-        self.check(JournalPermission::MEMBER)
-    }
-
-    /// Check if the given [`JournalPermission`] qualifies as "Moderator" status.
-    pub fn check_moderator(self) -> bool {
-        self.check(JournalPermission::MANAGE_POSTS)
-    }
-}
-
-impl Default for JournalPermission {
-    fn default() -> Self {
-        Self::DEFAULT
-    }
-}