-- porting-schema.sql
-- Schema for NATS server Go-to-.NET porting tracker

PRAGMA journal_mode=WAL;
PRAGMA foreign_keys=ON;

CREATE TABLE IF NOT EXISTS modules (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    name TEXT NOT NULL,
    description TEXT,
    go_package TEXT,
    go_file TEXT,
    go_line_start INTEGER,
    go_line_count INTEGER,
    status TEXT NOT NULL DEFAULT 'not_started'
        CHECK (status IN ('not_started', 'stub', 'complete', 'verified', 'n_a')),
    dotnet_project TEXT,
    dotnet_namespace TEXT,
    dotnet_class TEXT,
    notes TEXT,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS features (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    module_id INTEGER NOT NULL REFERENCES modules(id) ON DELETE CASCADE,
    name TEXT NOT NULL,
    description TEXT,
    go_file TEXT,
    go_class TEXT,
    go_method TEXT,
    go_line_number INTEGER,
    go_line_count INTEGER,
    status TEXT NOT NULL DEFAULT 'not_started'
        CHECK (status IN ('not_started', 'stub', 'complete', 'verified', 'n_a', 'deferred')),
    dotnet_project TEXT,
    dotnet_class TEXT,
    dotnet_method TEXT,
    notes TEXT,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS unit_tests (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    module_id INTEGER NOT NULL REFERENCES modules(id) ON DELETE CASCADE,
    feature_id INTEGER REFERENCES features(id) ON DELETE SET NULL,
    name TEXT NOT NULL,
    description TEXT,
    go_file TEXT,
    go_class TEXT,
    go_method TEXT,
    go_line_number INTEGER,
    go_line_count INTEGER,
    status TEXT NOT NULL DEFAULT 'not_started'
        CHECK (status IN ('not_started', 'stub', 'complete', 'verified', 'n_a', 'deferred')),
    dotnet_project TEXT,
    dotnet_class TEXT,
    dotnet_method TEXT,
    notes TEXT,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS dependencies (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    source_type TEXT NOT NULL CHECK (source_type IN ('module', 'feature', 'unit_test')),
    source_id INTEGER NOT NULL,
    target_type TEXT NOT NULL CHECK (target_type IN ('module', 'feature', 'unit_test')),
    target_id INTEGER NOT NULL,
    dependency_kind TEXT DEFAULT 'calls',
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    UNIQUE (source_type, source_id, target_type, target_id)
);

CREATE TABLE IF NOT EXISTS library_mappings (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    go_import_path TEXT NOT NULL UNIQUE,
    go_library_name TEXT,
    go_usage_description TEXT,
    dotnet_package TEXT,
    dotnet_namespace TEXT,
    dotnet_usage_notes TEXT,
    status TEXT NOT NULL DEFAULT 'not_mapped'
        CHECK (status IN ('not_mapped', 'mapped', 'verified')),
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

-- Indexes
CREATE INDEX IF NOT EXISTS idx_features_module ON features(module_id);
CREATE INDEX IF NOT EXISTS idx_features_status ON features(status);
CREATE INDEX IF NOT EXISTS idx_unit_tests_module ON unit_tests(module_id);
CREATE INDEX IF NOT EXISTS idx_unit_tests_feature ON unit_tests(feature_id);
CREATE INDEX IF NOT EXISTS idx_unit_tests_status ON unit_tests(status);
CREATE INDEX IF NOT EXISTS idx_deps_source ON dependencies(source_type, source_id);
CREATE INDEX IF NOT EXISTS idx_deps_target ON dependencies(target_type, target_id);
CREATE INDEX IF NOT EXISTS idx_library_status ON library_mappings(status);
CREATE INDEX IF NOT EXISTS idx_modules_status ON modules(status);

-- Triggers to auto-update updated_at
CREATE TRIGGER IF NOT EXISTS trg_modules_updated AFTER UPDATE ON modules
BEGIN
    UPDATE modules SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
END;

CREATE TRIGGER IF NOT EXISTS trg_features_updated AFTER UPDATE ON features
BEGIN
    UPDATE features SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
END;

CREATE TRIGGER IF NOT EXISTS trg_unit_tests_updated AFTER UPDATE ON unit_tests
BEGIN
    UPDATE unit_tests SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
END;

CREATE TRIGGER IF NOT EXISTS trg_library_mappings_updated AFTER UPDATE ON library_mappings
BEGIN
    UPDATE library_mappings SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
END;