-- Activity tracking for recent activity feed

CREATE TABLE IF NOT EXISTS activity_log (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    org_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
    user_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
    action TEXT NOT NULL, -- 'create', 'update', 'delete', 'move', 'assign', etc.
    entity_type TEXT NOT NULL, -- 'document', 'kanban_card', 'kanban_board', 'member', etc.
    entity_id UUID,
    entity_name TEXT,
    metadata JSONB DEFAULT '{}',
    created_at TIMESTAMPTZ DEFAULT now()
);

-- Enable RLS
ALTER TABLE activity_log ENABLE ROW LEVEL SECURITY;

-- Users can view activity for orgs they belong to
CREATE POLICY "Users can view org activity" ON activity_log
    FOR SELECT USING (
        EXISTS (
            SELECT 1 FROM org_members m
            WHERE m.org_id = activity_log.org_id
            AND m.user_id = auth.uid()
        )
    );

-- Users can insert their own activity
CREATE POLICY "Users can insert own activity" ON activity_log
    FOR INSERT WITH CHECK (user_id = auth.uid());

-- Indexes for faster queries
CREATE INDEX IF NOT EXISTS idx_activity_log_org ON activity_log(org_id);
CREATE INDEX IF NOT EXISTS idx_activity_log_created ON activity_log(created_at DESC);
CREATE INDEX IF NOT EXISTS idx_activity_log_entity ON activity_log(entity_type, entity_id);

-- User preferences table for themes and settings
CREATE TABLE IF NOT EXISTS user_preferences (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE UNIQUE,
    theme TEXT DEFAULT 'dark' CHECK (theme IN ('dark', 'light', 'system')),
    accent_color TEXT DEFAULT '#00A3E0',
    use_org_theme BOOLEAN DEFAULT true, -- Whether org theme overrides user theme
    sidebar_collapsed BOOLEAN DEFAULT false,
    created_at TIMESTAMPTZ DEFAULT now(),
    updated_at TIMESTAMPTZ DEFAULT now()
);

-- Enable RLS
ALTER TABLE user_preferences ENABLE ROW LEVEL SECURITY;

-- Users can manage their own preferences
CREATE POLICY "Users can manage own preferences" ON user_preferences
    FOR ALL USING (user_id = auth.uid());

-- Index
CREATE INDEX IF NOT EXISTS idx_user_preferences_user ON user_preferences(user_id);