139 lines
5.3 KiB
SQL
139 lines
5.3 KiB
SQL
create or replace function ems.fn_site_notifications_context(p_site_id int)
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returns jsonb
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language sql
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stable
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as $fn$
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select
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case
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when not exists (select 1 from ems.site s0 where s0.id = p_site_id) then
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jsonb_build_object('error', 'not_found')
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else jsonb_build_object(
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'timezone',
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coalesce(
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nullif(trim((select s.timezone from ems.site s where s.id = p_site_id)), ''),
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'Europe/Prague'
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),
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'mode_code',
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(select m.mode_code from ems.site_operating_mode m where m.site_id = p_site_id),
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'has_plan',
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exists (
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select 1
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from ems.planning_run pr
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where pr.site_id = p_site_id
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and pr.status = 'active'
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),
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'tomorrow_slots',
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(
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select count(*)::int
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from ems.vw_site_effective_price v
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where v.site_id = p_site_id
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and (v.interval_start at time zone coalesce(
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nullif(trim((select s2.timezone from ems.site s2 where s2.id = p_site_id)), ''),
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'Europe/Prague'
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))::date = (
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(
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current_timestamp at time zone coalesce(
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nullif(trim((select s3.timezone from ems.site s3 where s3.id = p_site_id)), ''),
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'Europe/Prague'
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)
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)::date + 1
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)
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),
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'reserve_soc',
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(select min(ab.reserve_soc_percent)::float from ems.asset_battery ab where ab.site_id = p_site_id),
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'min_soc',
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(select min(ab.min_soc_percent)::float from ems.asset_battery ab where ab.site_id = p_site_id),
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'soc_pct',
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(select li.battery_soc_percent::float from ems.vw_latest_inverter li where li.site_id = p_site_id order by li.measured_at desc nulls last limit 1),
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'inv_measured_at',
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(select li.measured_at from ems.vw_latest_inverter li where li.site_id = p_site_id order by li.measured_at desc nulls last limit 1),
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'hb_last_seen',
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(select hb.last_seen from ems.site_heartbeat hb where hb.site_id = p_site_id limit 1),
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'price_slots',
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coalesce(
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(
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select jsonb_agg(
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jsonb_build_object(
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'interval_start', v.interval_start,
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'effective_buy_price_czk_kwh', v.effective_buy_price_czk_kwh,
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'effective_sell_price_czk_kwh', v.effective_sell_price_czk_kwh
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)
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order by v.interval_start
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)
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from ems.vw_site_effective_price v
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where v.site_id = p_site_id
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and v.interval_start >= now()
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and v.interval_start < now() + interval '48 hours'
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),
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'[]'::jsonb
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),
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'avg_buy',
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(
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select avg(v.effective_buy_price_czk_kwh)::float
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from ems.vw_site_effective_price v
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where v.site_id = p_site_id
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and v.interval_start::date in (current_date, current_date + 1)
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),
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'usable_wh',
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(
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select coalesce(sum(ab.usable_capacity_wh), 0)::float
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from ems.asset_battery ab
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join ems.asset_inverter ai on ai.id = ab.inverter_id
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where ai.site_id = p_site_id
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),
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'ev_sessions',
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coalesce(
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(
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select jsonb_agg(
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jsonb_build_object(
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'id', es.id,
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'charger_id', es.charger_id,
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'energy_delivered_wh', es.energy_delivered_wh,
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'target_soc_pct', es.target_soc_pct,
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'session_start', es.session_start,
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'soc_at_connect_pct', es.soc_at_connect_pct,
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'battery_capacity_kwh', coalesce(av_id.battery_capacity_kwh, av_def.battery_capacity_kwh),
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'make', coalesce(av_id.make, av_def.make),
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'model', coalesce(av_id.model, av_def.model),
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'default_target_soc_pct', coalesce(av_id.default_target_soc_pct, av_def.default_target_soc_pct),
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'charger_code', ac.code
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)
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order by es.id
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)
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from ems.ev_session es
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join ems.asset_ev_charger ac on ac.id = es.charger_id
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left join ems.asset_vehicle av_id on av_id.id = es.vehicle_id
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left join ems.asset_vehicle av_def
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on av_def.default_charger_id = ac.id
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and es.vehicle_id is null
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where es.site_id = p_site_id
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and es.session_end is null
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),
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'[]'::jsonb
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),
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'neg_windows',
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coalesce(
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(
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select jsonb_agg(
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jsonb_build_object(
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'predicted_date', p.predicted_date,
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'window_start_hour', p.window_start_hour,
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'window_end_hour', p.window_end_hour,
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'probability_pct', p.probability_pct
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)
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order by p.predicted_date, p.window_start_hour
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)
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from ems.predicted_negative_price_window p
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where p.site_id = p_site_id
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and p.predicted_date between current_date and current_date + 2
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and p.probability_pct >= 50
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),
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'[]'::jsonb
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)
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)
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end;
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$fn$;
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comment on function ems.fn_site_notifications_context(int) is
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'Vstupy pro build_smart_notifications + infra pravidla (GET /notifications).';
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