-- Migration 008: Create services and schedules tables
-- Schedule: defines when services occur at a location (exactly ONE active per location, non-overlapping dates)
-- Service: individual work occurrence generated from schedule

-- Schedule for recurring services at an account address
CREATE TABLE schedules (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    account_address_id UUID REFERENCES account_addresses(id) ON DELETE CASCADE,

    name VARCHAR(255),

    -- Day-of-week flags
    monday_service BOOLEAN NOT NULL DEFAULT FALSE,
    tuesday_service BOOLEAN NOT NULL DEFAULT FALSE,
    wednesday_service BOOLEAN NOT NULL DEFAULT FALSE,
    thursday_service BOOLEAN NOT NULL DEFAULT FALSE,
    friday_service BOOLEAN NOT NULL DEFAULT FALSE,
    saturday_service BOOLEAN NOT NULL DEFAULT FALSE,
    sunday_service BOOLEAN NOT NULL DEFAULT FALSE,
    weekend_service BOOLEAN NOT NULL DEFAULT FALSE,

    -- Schedule exceptions (free text)
    schedule_exception TEXT,

    -- Validity period (non-overlapping per location)
    start_date DATE NOT NULL,
    end_date DATE
);

-- Constraint: non-overlapping schedules per account address
ALTER TABLE schedules ADD CONSTRAINT schedules_no_overlap
    EXCLUDE USING gist (
        account_address_id WITH =,
        daterange(start_date, COALESCE(end_date, '9999-12-31'::DATE), '[]') WITH &&
    );

-- Individual service occurrence
CREATE TABLE services (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    account_id UUID REFERENCES accounts(id) ON DELETE SET NULL,
    account_address_id UUID REFERENCES account_addresses(id) ON DELETE SET NULL,

    date DATE NOT NULL,
    status work_status NOT NULL DEFAULT 'SCHEDULED',

    notes TEXT,

    -- Google Calendar integration
    calendar_event_id VARCHAR(255)
);

-- M2M: Service to TeamProfile (assigned team members)
CREATE TABLE service_team_members (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    service_id UUID NOT NULL REFERENCES services(id) ON DELETE CASCADE,
    team_profile_id UUID NOT NULL REFERENCES team_profiles(id) ON DELETE CASCADE,

    UNIQUE (service_id, team_profile_id)
);

-- Indexes
CREATE INDEX idx_schedules_address ON schedules(account_address_id);
CREATE INDEX idx_services_account ON services(account_id);
CREATE INDEX idx_services_address ON services(account_address_id);
CREATE INDEX idx_services_date ON services(date);
CREATE INDEX idx_services_status ON services(status);
CREATE INDEX idx_service_team_members_service ON service_team_members(service_id);
CREATE INDEX idx_service_team_members_team ON service_team_members(team_profile_id);