♻️ Major code restructuring

src/core/package/all.rs

@@ -0,0 +1,162 @@
+use crate::core::action::add_action;
+use crate::core::package::PackageRef;
+use crate::core::theme::all::THEMES;
+use crate::{config, service, service_for_static_files, static_files, trace, LazyStatic};
+
+#[cfg(feature = "database")]
+use crate::db::*;
+
+use std::sync::RwLock;
+
+static_files!(base);
+
+// PACKAGES ****************************************************************************************
+
+static ENABLED_PACKAGES: LazyStatic<RwLock<Vec<PackageRef>>> =
+    LazyStatic::new(|| RwLock::new(Vec::new()));
+
+static DROPPED_PACKAGES: LazyStatic<RwLock<Vec<PackageRef>>> =
+    LazyStatic::new(|| RwLock::new(Vec::new()));
+
+// REGISTER PACKAGES *******************************************************************************
+
+pub fn register_packages(app: PackageRef) {
+    // List of packages to drop.
+    let mut list: Vec<PackageRef> = Vec::new();
+    add_to_dropped(&mut list, app);
+    DROPPED_PACKAGES.write().unwrap().append(&mut list);
+
+    // List of packages to enable.
+    let mut list: Vec<PackageRef> = Vec::new();
+
+    // Enable default themes.
+    add_to_enabled(&mut list, &crate::base::theme::Basic);
+    add_to_enabled(&mut list, &crate::base::theme::Chassis);
+    add_to_enabled(&mut list, &crate::base::theme::Inception);
+
+    // Enable application packages.
+    add_to_enabled(&mut list, app);
+
+    list.reverse();
+    ENABLED_PACKAGES.write().unwrap().append(&mut list);
+}
+
+fn add_to_dropped(list: &mut Vec<PackageRef>, package: PackageRef) {
+    for d in package.drop_packages().iter() {
+        if !list.iter().any(|p| p.handle() == d.handle()) {
+            list.push(*d);
+            trace::debug!("Package \"{}\" dropped", d.single_name());
+        }
+    }
+    for d in package.dependencies().iter() {
+        add_to_dropped(list, *d);
+    }
+}
+
+fn add_to_enabled(list: &mut Vec<PackageRef>, package: PackageRef) {
+    if !list.iter().any(|p| p.handle() == package.handle()) {
+        if DROPPED_PACKAGES
+            .read()
+            .unwrap()
+            .iter()
+            .any(|p| p.handle() == package.handle())
+        {
+            panic!(
+                "Trying to enable \"{}\" package which is dropped",
+                package.single_name()
+            );
+        } else {
+            list.push(package);
+
+            let mut dependencies = package.dependencies();
+            dependencies.reverse();
+            for d in dependencies.iter() {
+                add_to_enabled(list, *d);
+            }
+
+            if let Some(theme) = package.theme() {
+                let mut registered_themes = THEMES.write().unwrap();
+                if !registered_themes
+                    .iter()
+                    .any(|t| t.handle() == theme.handle())
+                {
+                    registered_themes.push(theme);
+                    trace::debug!("Enabling \"{}\" theme", theme.single_name());
+                }
+            } else {
+                trace::debug!("Enabling \"{}\" package", package.single_name());
+            }
+        }
+    }
+}
+
+// REGISTER ACTIONS ********************************************************************************
+
+pub fn register_actions() {
+    for m in ENABLED_PACKAGES.read().unwrap().iter() {
+        for a in m.actions().into_iter() {
+            add_action(a);
+        }
+    }
+}
+
+// INIT PACKAGES ***********************************************************************************
+
+pub fn init_packages() {
+    trace::info!("Calling application bootstrap");
+    for m in ENABLED_PACKAGES.read().unwrap().iter() {
+        m.init();
+    }
+}
+
+// RUN MIGRATIONS **********************************************************************************
+
+#[cfg(feature = "database")]
+pub fn run_migrations() {
+    if let Some(dbconn) = &*DBCONN {
+        if let Err(e) = run_now({
+            struct Migrator;
+            impl MigratorTrait for Migrator {
+                fn migrations() -> Vec<MigrationItem> {
+                    let mut migrations = vec![];
+                    for m in ENABLED_PACKAGES.read().unwrap().iter() {
+                        migrations.append(&mut m.migrations());
+                    }
+                    migrations
+                }
+            }
+            Migrator::up(SchemaManagerConnection::Connection(dbconn), None)
+        }) {
+            trace::error!("Database upgrade failed ({})", e);
+        };
+
+        if let Err(e) = run_now({
+            struct Migrator;
+            impl MigratorTrait for Migrator {
+                fn migrations() -> Vec<MigrationItem> {
+                    let mut migrations = vec![];
+                    for m in DROPPED_PACKAGES.read().unwrap().iter() {
+                        migrations.append(&mut m.migrations());
+                    }
+                    migrations
+                }
+            }
+            Migrator::down(SchemaManagerConnection::Connection(dbconn), None)
+        }) {
+            trace::error!("Database downgrade failed ({})", e);
+        };
+    }
+}
+
+// CONFIGURE SERVICES ******************************************************************************
+
+pub fn configure_services(scfg: &mut service::web::ServiceConfig) {
+    service_for_static_files!(
+        scfg,
+        base => "/base",
+        [&config::SETTINGS.dev.pagetop_project_dir, "static/base"]
+    );
+    for m in ENABLED_PACKAGES.read().unwrap().iter() {
+        m.configure_service(scfg);
+    }
+}