-- Fix soaking duration column to use minutes instead of hours
-- This aligns the database schema with frontend expectations and seed data

BEGIN;

-- 1) Add new soaking_duration_minutes column
ALTER TABLE public.soaking ADD COLUMN IF NOT EXISTS soaking_duration_minutes INTEGER;

-- 2) Backfill soaking_duration_minutes from soaking_duration_hours
UPDATE public.soaking 
SET soaking_duration_minutes = ROUND(soaking_duration_hours * 60)
WHERE soaking_duration_minutes IS NULL;

-- 3) Make soaking_duration_minutes NOT NULL
ALTER TABLE public.soaking ALTER COLUMN soaking_duration_minutes SET NOT NULL;

-- 4) Add check constraint for positive values
ALTER TABLE public.soaking ADD CONSTRAINT check_soaking_duration_minutes_positive 
    CHECK (soaking_duration_minutes > 0);

-- 5) Drop and recreate views to use the new column (must be done before dropping old column)
DROP VIEW IF EXISTS public.experiments_with_phases;
DROP VIEW IF EXISTS public.repetitions_with_phases;

CREATE VIEW public.experiments_with_phases AS
SELECT 
    e.id,
    e.experiment_number,
    e.reps_required,
    e.weight_per_repetition_lbs,
    e.results_status,
    e.completion_status,
    e.phase_id,
    e.soaking_id,
    e.airdrying_id,
    e.cracking_id,
    e.shelling_id,
    e.created_at,
    e.updated_at,
    e.created_by,
    ep.name as phase_name,
    ep.description as phase_description,
    ep.has_soaking,
    ep.has_airdrying,
    ep.has_cracking,
    ep.has_shelling,
    s.scheduled_start_time as soaking_scheduled_start,
    s.actual_start_time as soaking_actual_start,
    s.soaking_duration_minutes,
    s.scheduled_end_time as soaking_scheduled_end,
    s.actual_end_time as soaking_actual_end,
    ad.scheduled_start_time as airdrying_scheduled_start,
    ad.actual_start_time as airdrying_actual_start,
    ad.duration_minutes as airdrying_duration,
    ad.scheduled_end_time as airdrying_scheduled_end,
    ad.actual_end_time as airdrying_actual_end,
    c.scheduled_start_time as cracking_scheduled_start,
    c.actual_start_time as cracking_actual_start,
    c.actual_end_time as cracking_actual_end,
    mt.name as machine_type_name,
    sh.scheduled_start_time as shelling_scheduled_start,
    sh.actual_start_time as shelling_actual_start,
    sh.actual_end_time as shelling_actual_end
FROM public.experiments e
LEFT JOIN public.experiment_phases ep ON e.phase_id = ep.id
LEFT JOIN public.soaking s ON e.soaking_id = s.id
LEFT JOIN public.airdrying ad ON e.airdrying_id = ad.id
LEFT JOIN public.cracking c ON e.cracking_id = c.id
LEFT JOIN public.machine_types mt ON c.machine_type_id = mt.id
LEFT JOIN public.shelling sh ON e.shelling_id = sh.id;

CREATE VIEW public.repetitions_with_phases AS
SELECT 
    er.id,
    er.experiment_number,
    er.experiment_phase_id,
    er.repetition_number,
    er.status,
    er.created_at,
    er.updated_at,
    er.created_by,
    e.weight_per_repetition_lbs,
    ep.name as phase_name,
    ep.has_soaking,
    ep.has_airdrying,
    ep.has_cracking,
    ep.has_shelling,
    s.scheduled_start_time as soaking_scheduled_start,
    s.actual_start_time as soaking_actual_start,
    s.soaking_duration_minutes,
    s.scheduled_end_time as soaking_scheduled_end,
    s.actual_end_time as soaking_actual_end,
    ad.scheduled_start_time as airdrying_scheduled_start,
    ad.actual_start_time as airdrying_actual_start,
    ad.duration_minutes as airdrying_duration,
    ad.scheduled_end_time as airdrying_scheduled_end,
    ad.actual_end_time as airdrying_actual_end,
    c.scheduled_start_time as cracking_scheduled_start,
    c.actual_start_time as cracking_actual_start,
    c.actual_end_time as cracking_actual_end,
    mt.name as machine_type_name,
    sh.scheduled_start_time as shelling_scheduled_start,
    sh.actual_start_time as shelling_actual_start,
    sh.actual_end_time as shelling_actual_end
FROM public.experiment_repetitions er
JOIN public.experiments e ON er.experiment_number = e.experiment_number AND er.experiment_phase_id = e.phase_id
LEFT JOIN public.experiment_phases ep ON e.phase_id = ep.id
LEFT JOIN public.soaking s ON er.id = s.repetition_id
LEFT JOIN public.airdrying ad ON er.id = ad.repetition_id
LEFT JOIN public.cracking c ON er.id = c.repetition_id
LEFT JOIN public.machine_types mt ON c.machine_type_id = mt.id
LEFT JOIN public.shelling sh ON er.id = sh.repetition_id;

-- 6) Update the trigger function to use minutes
CREATE OR REPLACE FUNCTION calculate_soaking_scheduled_end_time()
RETURNS TRIGGER AS $$
BEGIN
    NEW.scheduled_end_time = NEW.scheduled_start_time + (NEW.soaking_duration_minutes || ' minutes')::INTERVAL;
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

-- 7) Update the trigger to use the new column
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();

-- 8) Drop the old soaking_duration_hours column
ALTER TABLE public.soaking DROP COLUMN IF EXISTS soaking_duration_hours;

COMMIT;