-- Schedule/Timeline + Contacts/Vendor Directory for department dashboards
-- These are self-contained modules that can be added to any department dashboard

-- ============================================================
-- 1. Schedule Stages (rooms/areas where things happen)
-- ============================================================
CREATE TABLE schedule_stages (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  department_id UUID NOT NULL REFERENCES event_departments(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  color TEXT DEFAULT '#6366f1',
  sort_order INT NOT NULL DEFAULT 0,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- ============================================================
-- 2. Schedule Blocks (time blocks in the program)
-- ============================================================
CREATE TABLE schedule_blocks (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  department_id UUID NOT NULL REFERENCES event_departments(id) ON DELETE CASCADE,
  stage_id UUID REFERENCES schedule_stages(id) ON DELETE SET NULL,
  title TEXT NOT NULL,
  description TEXT,
  start_time TIMESTAMPTZ NOT NULL,
  end_time TIMESTAMPTZ NOT NULL,
  color TEXT DEFAULT '#6366f1',
  speaker TEXT,
  sort_order INT NOT NULL DEFAULT 0,
  created_by UUID REFERENCES auth.users(id) ON DELETE SET NULL,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- ============================================================
-- 3. Contacts / Vendor Directory
-- ============================================================
CREATE TABLE department_contacts (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  department_id UUID NOT NULL REFERENCES event_departments(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  role TEXT,
  company TEXT,
  email TEXT,
  phone TEXT,
  website TEXT,
  notes TEXT,
  category TEXT DEFAULT 'general',
  color TEXT DEFAULT '#00A3E0',
  created_by UUID REFERENCES auth.users(id) ON DELETE SET NULL,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- ============================================================
-- 4. Indexes
-- ============================================================
CREATE INDEX idx_schedule_stages_dept ON schedule_stages(department_id);
CREATE INDEX idx_schedule_blocks_dept ON schedule_blocks(department_id);
CREATE INDEX idx_schedule_blocks_stage ON schedule_blocks(stage_id);
CREATE INDEX idx_schedule_blocks_time ON schedule_blocks(start_time, end_time);
CREATE INDEX idx_department_contacts_dept ON department_contacts(department_id);
CREATE INDEX idx_department_contacts_category ON department_contacts(category);

-- ============================================================
-- 5. RLS Policies
-- ============================================================
ALTER TABLE schedule_stages ENABLE ROW LEVEL SECURITY;
ALTER TABLE schedule_blocks ENABLE ROW LEVEL SECURITY;
ALTER TABLE department_contacts ENABLE ROW LEVEL SECURITY;

-- Schedule stages: org members can read, editors can write
CREATE POLICY "schedule_stages_select" ON schedule_stages FOR SELECT
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_stages.department_id
        AND om.user_id = auth.uid()
    )
  );

CREATE POLICY "schedule_stages_insert" ON schedule_stages FOR INSERT
  WITH CHECK (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_stages.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

CREATE POLICY "schedule_stages_update" ON schedule_stages FOR UPDATE
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_stages.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

CREATE POLICY "schedule_stages_delete" ON schedule_stages FOR DELETE
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_stages.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

-- Schedule blocks: same pattern
CREATE POLICY "schedule_blocks_select" ON schedule_blocks FOR SELECT
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_blocks.department_id
        AND om.user_id = auth.uid()
    )
  );

CREATE POLICY "schedule_blocks_insert" ON schedule_blocks FOR INSERT
  WITH CHECK (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_blocks.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

CREATE POLICY "schedule_blocks_update" ON schedule_blocks FOR UPDATE
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_blocks.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

CREATE POLICY "schedule_blocks_delete" ON schedule_blocks FOR DELETE
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = schedule_blocks.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

-- Contacts: same pattern
CREATE POLICY "department_contacts_select" ON department_contacts FOR SELECT
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = department_contacts.department_id
        AND om.user_id = auth.uid()
    )
  );

CREATE POLICY "department_contacts_insert" ON department_contacts FOR INSERT
  WITH CHECK (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = department_contacts.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

CREATE POLICY "department_contacts_update" ON department_contacts FOR UPDATE
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = department_contacts.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );

CREATE POLICY "department_contacts_delete" ON department_contacts FOR DELETE
  USING (
    EXISTS (
      SELECT 1 FROM event_departments ed
      JOIN events e ON e.id = ed.event_id
      JOIN org_members om ON om.org_id = e.org_id
      WHERE ed.id = department_contacts.department_id
        AND om.user_id = auth.uid()
        AND om.role IN ('owner', 'admin', 'editor')
    )
  );