sqlitegraph 2.0.7

//! Import Validation and Recovery Verification for SQLiteGraph
//!
//! This module implements validation for import operations including pre-import
//! validation, post-import recovery verification, and compatibility checking.

use super::ImportValidationReport;
use crate::backend::native::types::{NativeBackendError, NativeResult};
use crate::backend::native::v2::export::ExportManifest;
use crate::backend::native::v2::wal::recovery::states::RecoveryState as ExplicitRecoveryState;
use std::path::PathBuf;

/// Import validator for pre-import validation
pub struct ImportValidator {
    /// Export manifest
    manifest: ExportManifest,

    /// Export directory path
    export_dir: PathBuf,

    /// Target path for import
    target_path: PathBuf,
}

impl ImportValidator {
    /// Create validator for import operation
    pub fn new(manifest: ExportManifest, export_dir: PathBuf, target_path: PathBuf) -> Self {
        Self {
            manifest,
            export_dir,
            target_path,
        }
    }

    /// Validate manifest integrity and format
    pub fn validate_manifest(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "ImportValidator::validate_manifest not yet implemented".to_string(),
        })
    }

    /// Validate all required export files exist
    pub fn validate_files(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "ImportValidator::validate_files not yet implemented".to_string(),
        })
    }

    /// Validate format compatibility
    pub fn validate_compatibility(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "ImportValidator::validate_compatibility not yet implemented".to_string(),
        })
    }

    /// Validate target graph for merge operations
    pub fn validate_target_compatibility(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "ImportValidator::validate_target_compatibility not yet implemented"
                .to_string(),
        })
    }

    /// Perform comprehensive validation
    pub fn validate(&self) -> NativeResult<ImportValidationReport> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "ImportValidator::validate not yet implemented".to_string(),
        })
    }
}

/// Post-import validator for recovery verification
pub struct PostImportValidator {
    /// WAL file path
    wal_path: PathBuf,

    /// Graph file path
    graph_path: PathBuf,

    /// Expected final LSN
    expected_lsn: u64,

    /// Expected recovery state
    expected_recovery_state: Option<ExplicitRecoveryState>,
}

impl PostImportValidator {
    /// Create post-import validator
    pub fn new(wal_path: PathBuf, graph_path: PathBuf, expected_lsn: u64) -> Self {
        Self {
            wal_path,
            graph_path,
            expected_lsn,
            expected_recovery_state: None,
        }
    }

    /// Set expected recovery state
    pub fn with_expected_recovery_state(mut self, state: ExplicitRecoveryState) -> Self {
        self.expected_recovery_state = Some(state);
        self
    }

    /// Run recovery validation after import
    pub fn validate_recovery(&self) -> NativeResult<ExplicitRecoveryState> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "PostImportValidator::validate_recovery not yet implemented".to_string(),
        })
    }

    /// Verify final database state consistency
    pub fn validate_consistency(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "PostImportValidator::validate_consistency not yet implemented".to_string(),
        })
    }

    /// Validate LSN boundaries match expectations
    pub fn validate_lsn_boundaries(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "PostImportValidator::validate_lsn_boundaries not yet implemented".to_string(),
        })
    }

    /// Perform comprehensive post-import validation
    pub fn validate(&self) -> NativeResult<()> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "PostImportValidator::validate not yet implemented".to_string(),
        })
    }
}

/// Compatibility checker for merge operations
pub struct MergeCompatibilityChecker {
    /// Existing graph path
    existing_path: PathBuf,

    /// Export manifest
    export_manifest: ExportManifest,
}

impl MergeCompatibilityChecker {
    /// Create compatibility checker
    pub fn new(existing_path: PathBuf, export_manifest: ExportManifest) -> Self {
        Self {
            existing_path,
            export_manifest,
        }
    }

    /// Check if merge is compatible
    pub fn is_compatible(&self) -> NativeResult<bool> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "MergeCompatibilityChecker::is_compatible not yet implemented".to_string(),
        })
    }

    /// Get incompatibility reason if any
    pub fn incompatibility_reason(&self) -> NativeResult<String> {
        // This will fail initially until we implement the functionality
        Err(NativeBackendError::CorruptStringTable {
            reason: "MergeCompatibilityChecker::incompatibility_reason not yet implemented"
                .to_string(),
        })
    }
}