// file: crates/ksp-app-store-desk/src/dto_common.rs
// version: 3

//! Common Tauri DTOs shared by the Store Desk shell and Store runtime Overview.

use ts_rs::TS; // rust-rules: trait-import

/// Safe command error projection that never serializes arbitrary KSP error context or source values.
#[derive(Clone, Debug, serde::Serialize, TS)]
#[serde(rename_all = "camelCase")]
#[ts(export, export_to = "../frontend/ts/bindings/ksp_app_store_desk/dto_common/CommandErrorDto.ts")]
pub(crate) struct CommandErrorDto {
    /// Stable KSP error domain.
    pub(crate) domain: String,
    /// Stable KSP error code within the domain.
    pub(crate) code: String,
    /// Human-readable error message without arbitrary context fields.
    pub(crate) message: String,
}

impl crate::CommandErrorDto {
    /// Builds a bounded safe projection from a KSP error.
    #[must_use]
    pub(crate) fn from_error(error: &ksp_core_lib::Error) -> Self {
        return Self {
            domain: error.code().domain().to_owned(),
            code: error.code().code().to_owned(),
            message: error.message().to_owned(),
        };
    }
}

/// Safe shell/Config/Logging snapshot exposed to Store Desk diagnostics.
#[derive(Clone, Debug, serde::Serialize, TS)]
#[serde(rename_all = "camelCase")]
#[ts(export, export_to = "../frontend/ts/bindings/ksp_app_store_desk/dto_common/ShellStatusDto.ts")]
pub(crate) struct ShellStatusDto {
    /// Active configured Logging profile, or `None` while transient fallback Logging is active.
    pub(crate) active_logging_profile: std::option::Option<String>,
    /// Cargo application version.
    pub(crate) application_version: String,
    /// Number of logical Config resources registered by the current runtime.
    pub(crate) config_document_count: u32,
    /// Whether Store Desk had to install its transient in-memory Logging fallback.
    pub(crate) fallback_logging_active: bool,
    /// Current implementation phase exposed by the shell.
    pub(crate) shell_phase: String,
    /// Safe startup diagnostic that caused fallback Logging, when applicable.
    pub(crate) startup_diagnostic: std::option::Option<crate::CommandErrorDto>,
}

/// Backend-neutral Store runtime and health projection used by the Overview screen.
#[derive(Clone, Debug, serde::Serialize, TS)]
#[serde(rename_all = "camelCase")]
#[ts(export, export_to = "../frontend/ts/bindings/ksp_app_store_desk/dto_common/StoreRuntimeStatusDto.ts")]
pub(crate) struct StoreRuntimeStatusDto {
    /// Stable selected Store backend kind, when configuration resolution reached that phase.
    pub(crate) backend_kind: std::option::Option<String>,
    /// Safe Store startup/health diagnostic, when present.
    pub(crate) diagnostic: std::option::Option<crate::CommandErrorDto>,
    /// Portable Store health code (`ready`, `not_ready`, `unavailable`, `closed`, or `unknown`).
    pub(crate) health_state: String,
    /// Applied migration version rendered as an exact decimal string.
    pub(crate) migration_version_decimal: std::option::Option<String>,
    /// Logical Store network, when configuration resolution reached that phase.
    pub(crate) network: std::option::Option<String>,
    /// Number of embedded migrations newer than the applied migration version.
    pub(crate) pending_migration_count: u32,
    /// Number of currently available pooled backend objects.
    pub(crate) pool_available: u32,
    /// Configured pool capacity.
    pub(crate) pool_capacity: u32,
    /// Current pool size.
    pub(crate) pool_size: u32,
    /// Number of tasks currently waiting for pool capacity.
    pub(crate) pool_waiting: u32,
    /// Store profile selected by the Store Desk composite.
    pub(crate) profile_id: std::option::Option<String>,
    /// Whether the application currently retains an opened Store facade.
    pub(crate) store_open: bool,
}

#[cfg(test)]
#[path = "../unit_tests/dto_common.rs"]
mod tests;