-- Teams/Roles system for organization structure
-- Like TipiLAN: infra team, sponsors, etc.

-- Create teams table
CREATE TABLE IF NOT EXISTS teams (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    org_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
    name TEXT NOT NULL,
    description TEXT,
    color TEXT DEFAULT '#00A3E0',
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW(),
    UNIQUE(org_id, name)
);

-- Create team members junction table
CREATE TABLE IF NOT EXISTS team_members (
    team_id UUID NOT NULL REFERENCES teams(id) ON DELETE CASCADE,
    user_id UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
    role TEXT DEFAULT 'member' CHECK (role IN ('lead', 'member')),
    joined_at TIMESTAMPTZ DEFAULT NOW(),
    PRIMARY KEY (team_id, user_id)
);

-- Create indexes
CREATE INDEX IF NOT EXISTS idx_teams_org ON teams(org_id);
CREATE INDEX IF NOT EXISTS idx_team_members_team ON team_members(team_id);
CREATE INDEX IF NOT EXISTS idx_team_members_user ON team_members(user_id);

-- Enable RLS
ALTER TABLE teams ENABLE ROW LEVEL SECURITY;
ALTER TABLE team_members ENABLE ROW LEVEL SECURITY;

-- RLS policies for teams
CREATE POLICY "Users can view teams in their orgs"
    ON teams FOR SELECT
    USING (
        org_id IN (
            SELECT org_id FROM org_members WHERE user_id = auth.uid()
        )
    );

CREATE POLICY "Admins can manage teams"
    ON teams FOR ALL
    USING (
        org_id IN (
            SELECT org_id FROM org_members 
            WHERE user_id = auth.uid() 
            AND role IN ('owner', 'admin')
        )
    );

-- RLS policies for team_members
CREATE POLICY "Users can view team members in their orgs"
    ON team_members FOR SELECT
    USING (
        team_id IN (
            SELECT id FROM teams WHERE org_id IN (
                SELECT org_id FROM org_members WHERE user_id = auth.uid()
            )
        )
    );

CREATE POLICY "Admins can manage team members"
    ON team_members FOR ALL
    USING (
        team_id IN (
            SELECT id FROM teams WHERE org_id IN (
                SELECT org_id FROM org_members 
                WHERE user_id = auth.uid() 
                AND role IN ('owner', 'admin')
            )
        )
    );

-- Add team_id to kanban_boards for team-specific boards
ALTER TABLE kanban_boards ADD COLUMN IF NOT EXISTS team_id UUID REFERENCES teams(id) ON DELETE SET NULL;
ALTER TABLE kanban_boards ADD COLUMN IF NOT EXISTS is_personal BOOLEAN DEFAULT FALSE;
ALTER TABLE kanban_boards ADD COLUMN IF NOT EXISTS created_by UUID REFERENCES profiles(id);

-- Create index for team boards
CREATE INDEX IF NOT EXISTS idx_kanban_boards_team ON kanban_boards(team_id);
CREATE INDEX IF NOT EXISTS idx_kanban_boards_personal ON kanban_boards(is_personal, created_by);