-- Data Entry Tables
-- This migration creates the phase-specific data entry tables (soaking, airdrying, cracking, shelling)

-- =============================================
-- 1. SOAKING TABLE
-- =============================================

-- Create soaking table
CREATE TABLE IF NOT EXISTS public.soaking (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    experiment_id UUID NOT NULL REFERENCES public.experiments(id) ON DELETE CASCADE,
    repetition_id UUID REFERENCES public.experiment_repetitions(id) ON DELETE CASCADE,
    scheduled_start_time TIMESTAMP WITH TIME ZONE NOT NULL,
    actual_start_time TIMESTAMP WITH TIME ZONE,
    soaking_duration_hours DOUBLE PRECISION NOT NULL CHECK (soaking_duration_hours > 0),
    scheduled_end_time TIMESTAMP WITH TIME ZONE NOT NULL,
    actual_end_time TIMESTAMP WITH TIME ZONE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    created_by UUID NOT NULL REFERENCES public.user_profiles(id),
    
    -- Ensure only one soaking per experiment or repetition
    CONSTRAINT unique_soaking_per_experiment UNIQUE (experiment_id),
    CONSTRAINT unique_soaking_per_repetition UNIQUE (repetition_id)
);

-- =============================================
-- 2. AIRDRYING TABLE
-- =============================================

-- Create airdrying table
CREATE TABLE IF NOT EXISTS public.airdrying (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    experiment_id UUID NOT NULL REFERENCES public.experiments(id) ON DELETE CASCADE,
    repetition_id UUID REFERENCES public.experiment_repetitions(id) ON DELETE CASCADE,
    scheduled_start_time TIMESTAMP WITH TIME ZONE NOT NULL,
    actual_start_time TIMESTAMP WITH TIME ZONE,
    duration_minutes INTEGER NOT NULL CHECK (duration_minutes > 0),
    scheduled_end_time TIMESTAMP WITH TIME ZONE NOT NULL,
    actual_end_time TIMESTAMP WITH TIME ZONE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    created_by UUID NOT NULL REFERENCES public.user_profiles(id),
    
    -- Ensure only one airdrying per experiment or repetition
    CONSTRAINT unique_airdrying_per_experiment UNIQUE (experiment_id),
    CONSTRAINT unique_airdrying_per_repetition UNIQUE (repetition_id)
);

-- =============================================
-- 3. CRACKING TABLE
-- =============================================

-- Create cracking table
CREATE TABLE IF NOT EXISTS public.cracking (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    experiment_id UUID NOT NULL REFERENCES public.experiments(id) ON DELETE CASCADE,
    repetition_id UUID REFERENCES public.experiment_repetitions(id) ON DELETE CASCADE,
    machine_type_id UUID NOT NULL REFERENCES public.machine_types(id),
    jc_cracker_parameters_id UUID REFERENCES public.jc_cracker_parameters(id) ON DELETE SET NULL,
    meyer_cracker_parameters_id UUID REFERENCES public.meyer_cracker_parameters(id) ON DELETE SET NULL,
    scheduled_start_time TIMESTAMP WITH TIME ZONE NOT NULL,
    actual_start_time TIMESTAMP WITH TIME ZONE,
    actual_end_time TIMESTAMP WITH TIME ZONE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    created_by UUID NOT NULL REFERENCES public.user_profiles(id),
    
    -- Ensure only one cracking per experiment or repetition
    CONSTRAINT unique_cracking_per_experiment UNIQUE (experiment_id),
    CONSTRAINT unique_cracking_per_repetition UNIQUE (repetition_id),
    -- Ensure exactly one cracker parameter set is specified
    CONSTRAINT check_exactly_one_cracker_params CHECK (
        (jc_cracker_parameters_id IS NOT NULL AND meyer_cracker_parameters_id IS NULL) OR
        (jc_cracker_parameters_id IS NULL AND meyer_cracker_parameters_id IS NOT NULL)
    )
);

-- =============================================
-- 4. SHELLING TABLE
-- =============================================

-- Create shelling table
CREATE TABLE IF NOT EXISTS public.shelling (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    experiment_id UUID NOT NULL REFERENCES public.experiments(id) ON DELETE CASCADE,
    repetition_id UUID REFERENCES public.experiment_repetitions(id) ON DELETE CASCADE,
    scheduled_start_time TIMESTAMP WITH TIME ZONE NOT NULL,
    actual_start_time TIMESTAMP WITH TIME ZONE,
    actual_end_time TIMESTAMP WITH TIME ZONE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    created_by UUID NOT NULL REFERENCES public.user_profiles(id),
    
    -- Ensure only one shelling per experiment or repetition
    CONSTRAINT unique_shelling_per_experiment UNIQUE (experiment_id),
    CONSTRAINT unique_shelling_per_repetition UNIQUE (repetition_id)
);

-- =============================================
-- 5. MACHINE-SPECIFIC PARAMETER TABLES
-- =============================================

-- Create JC Cracker parameters table
CREATE TABLE IF NOT EXISTS public.jc_cracker_parameters (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    plate_contact_frequency_hz DOUBLE PRECISION NOT NULL CHECK (plate_contact_frequency_hz > 0),
    throughput_rate_pecans_sec DOUBLE PRECISION NOT NULL CHECK (throughput_rate_pecans_sec > 0),
    crush_amount_in DOUBLE PRECISION NOT NULL CHECK (crush_amount_in >= 0),
    entry_exit_height_diff_in DOUBLE PRECISION NOT NULL,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- Create Meyer Cracker parameters table
CREATE TABLE IF NOT EXISTS public.meyer_cracker_parameters (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    motor_speed_hz DOUBLE PRECISION NOT NULL CHECK (motor_speed_hz > 0),
    jig_displacement_inches DOUBLE PRECISION NOT NULL,
    spring_stiffness_nm DOUBLE PRECISION NOT NULL CHECK (spring_stiffness_nm > 0),
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- =============================================
-- 6. EXPERIMENTS TABLE DOES NOT NEED FOREIGN KEYS TO PHASE TABLES
-- =============================================
-- Phase tables reference experiments via experiment_id
-- Experiments inherit phase configuration from experiment_phases via phase_id

-- =============================================
-- 7. INDEXES FOR PERFORMANCE
-- =============================================

-- Create indexes for experiment_id references
CREATE INDEX IF NOT EXISTS idx_soaking_experiment_id ON public.soaking(experiment_id);
CREATE INDEX IF NOT EXISTS idx_airdrying_experiment_id ON public.airdrying(experiment_id);
CREATE INDEX IF NOT EXISTS idx_cracking_experiment_id ON public.cracking(experiment_id);
CREATE INDEX IF NOT EXISTS idx_shelling_experiment_id ON public.shelling(experiment_id);

-- Create indexes for repetition references
CREATE INDEX IF NOT EXISTS idx_soaking_repetition_id ON public.soaking(repetition_id);
CREATE INDEX IF NOT EXISTS idx_airdrying_repetition_id ON public.airdrying(repetition_id);
CREATE INDEX IF NOT EXISTS idx_cracking_repetition_id ON public.cracking(repetition_id);
CREATE INDEX IF NOT EXISTS idx_shelling_repetition_id ON public.shelling(repetition_id);

-- Create indexes for machine type references
CREATE INDEX IF NOT EXISTS idx_cracking_machine_type_id ON public.cracking(machine_type_id);

-- Create indexes for created_by references
CREATE INDEX IF NOT EXISTS idx_soaking_created_by ON public.soaking(created_by);
CREATE INDEX IF NOT EXISTS idx_airdrying_created_by ON public.airdrying(created_by);
CREATE INDEX IF NOT EXISTS idx_cracking_created_by ON public.cracking(created_by);
CREATE INDEX IF NOT EXISTS idx_shelling_created_by ON public.shelling(created_by);

-- =============================================
-- 8. TRIGGERS FOR AUTOMATIC TIMESTAMP CALCULATIONS
-- =============================================

-- Function to calculate scheduled end time for soaking
CREATE OR REPLACE FUNCTION calculate_soaking_scheduled_end_time()
RETURNS TRIGGER AS $$
BEGIN
    NEW.scheduled_end_time = NEW.scheduled_start_time + (NEW.soaking_duration_hours || ' hours')::INTERVAL;
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

-- Trigger for soaking scheduled end time
DROP TRIGGER IF EXISTS trigger_calculate_soaking_scheduled_end_time ON public.soaking;
CREATE TRIGGER trigger_calculate_soaking_scheduled_end_time
    BEFORE INSERT OR UPDATE ON public.soaking
    FOR EACH ROW
    EXECUTE FUNCTION calculate_soaking_scheduled_end_time();

-- Function to calculate scheduled end time for airdrying
CREATE OR REPLACE FUNCTION calculate_airdrying_scheduled_end_time()
RETURNS TRIGGER AS $$
BEGIN
    NEW.scheduled_end_time = NEW.scheduled_start_time + (NEW.duration_minutes || ' minutes')::INTERVAL;
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

-- Trigger for airdrying scheduled end time
DROP TRIGGER IF EXISTS trigger_calculate_airdrying_scheduled_end_time ON public.airdrying;
CREATE TRIGGER trigger_calculate_airdrying_scheduled_end_time
    BEFORE INSERT OR UPDATE ON public.airdrying
    FOR EACH ROW
    EXECUTE FUNCTION calculate_airdrying_scheduled_end_time();

-- Function to set airdrying scheduled start time based on soaking end time
CREATE OR REPLACE FUNCTION set_airdrying_scheduled_start_time()
RETURNS TRIGGER AS $$
BEGIN
    -- If this is a new airdrying record and no scheduled_start_time is provided,
    -- try to get it from the associated soaking's scheduled_end_time
    IF NEW.scheduled_start_time IS NULL THEN
        SELECT s.scheduled_end_time INTO NEW.scheduled_start_time
        FROM public.soaking s
        WHERE s.experiment_id = NEW.experiment_id
        LIMIT 1;
    END IF;
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

-- Trigger for airdrying scheduled start time
DROP TRIGGER IF EXISTS trigger_set_airdrying_scheduled_start_time ON public.airdrying;
CREATE TRIGGER trigger_set_airdrying_scheduled_start_time
    BEFORE INSERT ON public.airdrying
    FOR EACH ROW
    EXECUTE FUNCTION set_airdrying_scheduled_start_time();

-- Function to set cracking scheduled start time based on airdrying end time
CREATE OR REPLACE FUNCTION set_cracking_scheduled_start_time()
RETURNS TRIGGER AS $$
BEGIN
    -- If this is a new cracking record and no scheduled_start_time is provided,
    -- try to get it from the associated airdrying's scheduled_end_time
    IF NEW.scheduled_start_time IS NULL THEN
        SELECT a.scheduled_end_time INTO NEW.scheduled_start_time
        FROM public.airdrying a
        WHERE a.experiment_id = NEW.experiment_id
        LIMIT 1;
    END IF;
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

-- Trigger for cracking scheduled start time
DROP TRIGGER IF EXISTS trigger_set_cracking_scheduled_start_time ON public.cracking;
CREATE TRIGGER trigger_set_cracking_scheduled_start_time
    BEFORE INSERT ON public.cracking
    FOR EACH ROW
    EXECUTE FUNCTION set_cracking_scheduled_start_time();

-- =============================================
-- 9. TRIGGERS FOR UPDATED_AT
-- =============================================

-- Create triggers for updated_at on all phase tables
CREATE TRIGGER set_updated_at_soaking
    BEFORE UPDATE ON public.soaking
    FOR EACH ROW
    EXECUTE FUNCTION public.handle_updated_at();

CREATE TRIGGER set_updated_at_airdrying
    BEFORE UPDATE ON public.airdrying
    FOR EACH ROW
    EXECUTE FUNCTION public.handle_updated_at();

CREATE TRIGGER set_updated_at_cracking
    BEFORE UPDATE ON public.cracking
    FOR EACH ROW
    EXECUTE FUNCTION public.handle_updated_at();

CREATE TRIGGER set_updated_at_shelling
    BEFORE UPDATE ON public.shelling
    FOR EACH ROW
    EXECUTE FUNCTION public.handle_updated_at();

CREATE TRIGGER set_updated_at_jc_cracker_parameters
    BEFORE UPDATE ON public.jc_cracker_parameters
    FOR EACH ROW
    EXECUTE FUNCTION public.handle_updated_at();

CREATE TRIGGER set_updated_at_meyer_cracker_parameters
    BEFORE UPDATE ON public.meyer_cracker_parameters
    FOR EACH ROW
    EXECUTE FUNCTION public.handle_updated_at();

-- =============================================
-- 10. GRANT PERMISSIONS
-- =============================================

GRANT ALL ON public.soaking TO authenticated;
GRANT ALL ON public.airdrying TO authenticated;
GRANT ALL ON public.cracking TO authenticated;
GRANT ALL ON public.shelling TO authenticated;
GRANT ALL ON public.jc_cracker_parameters TO authenticated;
GRANT ALL ON public.meyer_cracker_parameters TO authenticated;

-- =============================================
-- 11. ENABLE ROW LEVEL SECURITY
-- =============================================

ALTER TABLE public.soaking ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.airdrying ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.cracking ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.shelling ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.jc_cracker_parameters ENABLE ROW LEVEL SECURITY;
ALTER TABLE public.meyer_cracker_parameters ENABLE ROW LEVEL SECURITY;

-- =============================================
-- 12. CREATE RLS POLICIES
-- =============================================

-- Create RLS policies for phase tables
CREATE POLICY "Soaking data is viewable by authenticated users" ON public.soaking
    FOR SELECT USING (auth.role() = 'authenticated');

CREATE POLICY "Soaking data is insertable by authenticated users" ON public.soaking
    FOR INSERT WITH CHECK (auth.role() = 'authenticated');

CREATE POLICY "Soaking data is updatable by authenticated users" ON public.soaking
    FOR UPDATE USING (auth.role() = 'authenticated');

CREATE POLICY "Soaking data is deletable by authenticated users" ON public.soaking
    FOR DELETE USING (auth.role() = 'authenticated');

CREATE POLICY "Airdrying data is viewable by authenticated users" ON public.airdrying
    FOR SELECT USING (auth.role() = 'authenticated');

CREATE POLICY "Airdrying data is insertable by authenticated users" ON public.airdrying
    FOR INSERT WITH CHECK (auth.role() = 'authenticated');

CREATE POLICY "Airdrying data is updatable by authenticated users" ON public.airdrying
    FOR UPDATE USING (auth.role() = 'authenticated');

CREATE POLICY "Airdrying data is deletable by authenticated users" ON public.airdrying
    FOR DELETE USING (auth.role() = 'authenticated');

CREATE POLICY "Cracking data is viewable by authenticated users" ON public.cracking
    FOR SELECT USING (auth.role() = 'authenticated');

CREATE POLICY "Cracking data is insertable by authenticated users" ON public.cracking
    FOR INSERT WITH CHECK (auth.role() = 'authenticated');

CREATE POLICY "Cracking data is updatable by authenticated users" ON public.cracking
    FOR UPDATE USING (auth.role() = 'authenticated');

CREATE POLICY "Cracking data is deletable by authenticated users" ON public.cracking
    FOR DELETE USING (auth.role() = 'authenticated');

CREATE POLICY "Shelling data is viewable by authenticated users" ON public.shelling
    FOR SELECT USING (auth.role() = 'authenticated');

CREATE POLICY "Shelling data is insertable by authenticated users" ON public.shelling
    FOR INSERT WITH CHECK (auth.role() = 'authenticated');

CREATE POLICY "Shelling data is updatable by authenticated users" ON public.shelling
    FOR UPDATE USING (auth.role() = 'authenticated');

CREATE POLICY "Shelling data is deletable by authenticated users" ON public.shelling
    FOR DELETE USING (auth.role() = 'authenticated');

-- RLS policies for machine parameter tables
CREATE POLICY "JC Cracker parameters are viewable by authenticated users" ON public.jc_cracker_parameters
    FOR SELECT USING (auth.role() = 'authenticated');

CREATE POLICY "JC Cracker parameters are insertable by authenticated users" ON public.jc_cracker_parameters
    FOR INSERT WITH CHECK (auth.role() = 'authenticated');

CREATE POLICY "JC Cracker parameters are updatable by authenticated users" ON public.jc_cracker_parameters
    FOR UPDATE USING (auth.role() = 'authenticated');

CREATE POLICY "JC Cracker parameters are deletable by authenticated users" ON public.jc_cracker_parameters
    FOR DELETE USING (auth.role() = 'authenticated');

CREATE POLICY "Meyer Cracker parameters are viewable by authenticated users" ON public.meyer_cracker_parameters
    FOR SELECT USING (auth.role() = 'authenticated');

CREATE POLICY "Meyer Cracker parameters are insertable by authenticated users" ON public.meyer_cracker_parameters
    FOR INSERT WITH CHECK (auth.role() = 'authenticated');

CREATE POLICY "Meyer Cracker parameters are updatable by authenticated users" ON public.meyer_cracker_parameters
    FOR UPDATE USING (auth.role() = 'authenticated');

CREATE POLICY "Meyer Cracker parameters are deletable by authenticated users" ON public.meyer_cracker_parameters
    FOR DELETE USING (auth.role() = 'authenticated');