junobuild-collections 0.5.1

The types and rules to define collections.
Documentation 
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use crate::assert::rules::{
    assert_memory, assert_mutable_permissions, assert_storage_reserved_collection,
    assert_system_collection_delete_permission, assert_system_collection_set_permission,
    assert_write_version,
};
use crate::constants::core::SYS_COLLECTION_PREFIX;
use crate::types::core::CollectionKey;
use crate::types::interface::{DelRule, ListRulesParams, ListRulesResults, SetRule};
use crate::types::rules::{Rule, Rules};

// ---------------------------------------------------------
// Rules
// ---------------------------------------------------------

pub fn filter_rules(rules: &Rules) -> Vec<(CollectionKey, Rule)> {
    rules
        .clone()
        .into_iter()
        .filter(|(path, _rules)| path.starts_with(|c| c != SYS_COLLECTION_PREFIX))
        .collect()
}

pub fn set_rule(
    collection: CollectionKey,
    user_rule: SetRule,
    storage_checks: bool,
    rules: &mut Rules,
) -> Result<Rule, String> {
    let current_rule = rules.get(&collection);

    assert_write_version(current_rule, &user_rule.version)?;

    assert_system_collection_set_permission(&collection, current_rule, &user_rule)?;

    if storage_checks {
        assert_storage_reserved_collection(&collection, rules)?;
    }

    assert_memory(current_rule, &user_rule.memory)?;
    assert_mutable_permissions(current_rule, &user_rule)?;

    let rule: Rule = Rule::prepare(&collection, &current_rule, &user_rule)?;

    rules.insert(collection, rule.clone());

    Ok(rule)
}

pub fn del_rule(
    collection: CollectionKey,
    user_rule: DelRule,
    rules: &mut Rules,
) -> Result<(), String> {
    let current_rule = rules.get(&collection);

    assert_write_version(current_rule, &user_rule.version)?;

    assert_system_collection_delete_permission(&collection)?;

    rules.remove(&collection);

    Ok(())
}

pub fn list_rules(params: &ListRulesParams, rules: &Rules) -> ListRulesResults {
    let include_system = params
        .matcher
        .as_ref()
        .map(|m| m.include_system)
        .unwrap_or(false);

    if include_system {
        let items_length = rules.len();

        return ListRulesResults {
            items: rules
                .iter()
                .map(|(key, rule)| (key.clone(), rule.clone()))
                .collect(),
            items_length,
            matches_length: items_length,
        };
    }

    let items = filter_rules(rules);

    let items_length = items.len();

    ListRulesResults {
        items,
        items_length,
        matches_length: items_length,
    }
}