---------------------------------------------------------------------------
-- Copyright 2021-2024 Francois Lacroix <xbgmsharp@gmail.com>
-- This file is part of PostgSail which is released under Apache License, Version 2.0 (the "License").
-- See file LICENSE or go to http://www.apache.org/licenses/LICENSE-2.0 for full license details.
--
-- Migration April 2024
--
-- List current database
select current_database();

-- connect to the DB
\c signalk

\echo 'Force timezone, just in case'
set timezone to 'UTC';

UPDATE public.email_templates
	SET email_content='Hello __RECIPIENT__,
Sorry!We could not convert your boat into a Windy Personal Weather Station due to missing data (temperature, wind or pressure).
Windy Personal Weather Station is now disable.'
	WHERE "name"='windy_error';

CREATE OR REPLACE FUNCTION public.cron_windy_fn() RETURNS void AS $$
DECLARE
    windy_rec record;
    default_last_metric TIMESTAMPTZ := NOW() - interval '1 day';
    last_metric TIMESTAMPTZ := NOW();
    metric_rec record;
    windy_metric jsonb;
    app_settings jsonb;
    user_settings jsonb;
    windy_pws jsonb;
BEGIN
    -- Check for new observations pending update
    RAISE NOTICE 'cron_process_windy_fn';
    -- Gather url from app settings
    app_settings := get_app_settings_fn();
    -- Find users with Windy active and with an active vessel
    -- Map account id to Windy Station ID
    FOR windy_rec in
        SELECT
            a.id,a.email,v.vessel_id,v.name,
            COALESCE((a.preferences->'windy_last_metric')::TEXT, default_last_metric::TEXT) as last_metric
            FROM auth.accounts a
            LEFT JOIN auth.vessels AS v ON v.owner_email = a.email
            LEFT JOIN api.metadata AS m ON m.vessel_id = v.vessel_id
            WHERE (a.preferences->'public_windy')::boolean = True
                AND m.active = True
    LOOP
        RAISE NOTICE '-> cron_process_windy_fn for [%]', windy_rec;
        PERFORM set_config('vessel.id', windy_rec.vessel_id, false);
        --RAISE WARNING 'public.cron_process_windy_rec_fn() scheduler vessel.id %, user.id', current_setting('vessel.id', false), current_setting('user.id', false);
        -- Gather user settings
        user_settings := get_user_settings_from_vesselid_fn(windy_rec.vessel_id::TEXT);
        RAISE NOTICE '-> cron_process_windy_fn checking user_settings [%]', user_settings;
        -- Get all metrics from the last windy_last_metric avg by 5 minutes
        -- TODO json_agg to send all data in once, but issue with py jsonb transformation decimal. 
        FOR metric_rec in
            SELECT time_bucket('5 minutes', m.time) AS time_bucket,
                    avg((m.metrics->'environment.outside.temperature')::numeric) AS temperature,
                    avg((m.metrics->'environment.outside.pressure')::numeric) AS pressure,
                    avg((m.metrics->'environment.outside.relativeHumidity')::numeric) AS rh,
                    avg((m.metrics->'environment.wind.directionTrue')::numeric) AS winddir,
                    avg((m.metrics->'environment.wind.speedTrue')::numeric) AS wind,
                    max((m.metrics->'environment.wind.speedTrue')::numeric) AS gust,
                    last(latitude, time) AS lat,
                    last(longitude, time) AS lng
                FROM api.metrics m
                WHERE vessel_id = windy_rec.vessel_id
                    AND m.time >= windy_rec.last_metric::TIMESTAMPTZ
                GROUP BY time_bucket
                ORDER BY time_bucket ASC LIMIT 100
        LOOP
            RAISE NOTICE '-> cron_process_windy_fn checking metrics [%]', metric_rec;
	        if metric_rec.wind is null or metric_rec.temperature is null 
	        	or metric_rec.pressure is null or metric_rec.rh is null then
	           -- Ignore when there is no metrics.
               -- Send notification
               PERFORM send_notification_fn('windy_error'::TEXT, user_settings::JSONB);
			   -- Disable windy
	           PERFORM api.update_user_preferences_fn('{public_windy}'::TEXT, 'false'::TEXT);
	           RETURN;
	        end if;
            -- https://community.windy.com/topic/8168/report-your-weather-station-data-to-windy
            -- temp from kelvin to celcuis
            -- winddir from radiant to degres
            -- rh from ratio to percentage
            SELECT jsonb_build_object(
                'dateutc', metric_rec.time_bucket,
                'station', windy_rec.id,
                'name', windy_rec.name,
                'lat', metric_rec.lat,
                'lon', metric_rec.lng,
                'wind', metric_rec.wind,
                'gust', metric_rec.gust,
                'pressure', metric_rec.pressure,
                'winddir', radiantToDegrees(metric_rec.winddir::numeric),
                'temp', kelvinToCel(metric_rec.temperature::numeric),
                'rh', valToPercent(metric_rec.rh::numeric)
                ) INTO windy_metric;
            RAISE NOTICE '-> cron_process_windy_fn checking windy_metrics [%]', windy_metric;
            SELECT windy_pws_py_fn(windy_metric, user_settings, app_settings) into windy_pws;
            RAISE NOTICE '-> cron_process_windy_fn Windy PWS [%]', ((windy_pws->'header')::JSONB ? 'id');
            IF NOT((user_settings->'settings')::JSONB ? 'windy') and ((windy_pws->'header')::JSONB ? 'id') then
                RAISE NOTICE '-> cron_process_windy_fn new Windy PWS [%]', (windy_pws->'header')::JSONB->>'id';
                -- Send metrics to Windy
                PERFORM api.update_user_preferences_fn('{windy}'::TEXT, ((windy_pws->'header')::JSONB->>'id')::TEXT);
                -- Send notification
                PERFORM send_notification_fn('windy'::TEXT, user_settings::JSONB);
                -- Refresh user settings after first success
                user_settings := get_user_settings_from_vesselid_fn(windy_rec.vessel_id::TEXT);
            END IF;
            -- Record last metrics time
            SELECT metric_rec.time_bucket INTO last_metric;
        END LOOP;
        PERFORM api.update_user_preferences_fn('{windy_last_metric}'::TEXT, last_metric::TEXT);
    END LOOP;
END;
$$ language plpgsql;

-- Add security definer, run this function as admin to avoid weird bug
-- ERROR:  variable not found in subplan target list
CREATE OR REPLACE FUNCTION api.delete_logbook_fn(IN _id integer) RETURNS BOOLEAN AS $delete_logbook$
    DECLARE
        logbook_rec record;
        previous_stays_id numeric;
        current_stays_departed text;
        current_stays_id numeric;
        current_stays_active boolean;
       BEGIN
        -- If _id is not NULL
        IF _id IS NULL OR _id < 1 THEN
            RAISE WARNING '-> delete_logbook_fn invalid input %', _id;
            RETURN FALSE;
        END IF;
        -- Get the logbook record with all necessary fields exist
        SELECT * INTO logbook_rec
            FROM api.logbook
            WHERE id = _id;
        -- Ensure the query is successful
        IF logbook_rec.vessel_id IS NULL THEN
            RAISE WARNING '-> delete_logbook_fn invalid logbook %', _id;
            RETURN FALSE;
        END IF;
        -- Update logbook
        UPDATE api.logbook l
            SET notes = 'mark for deletion'
            WHERE l.vessel_id = current_setting('vessel.id', false)
                AND id = logbook_rec.id;
        -- Update metrics status to moored
        -- This generate an error when run as user_role "variable not found in subplan target list"
        UPDATE api.metrics
            SET status = 'moored'
            WHERE time >= logbook_rec._from_time
                AND time <= logbook_rec._to_time
                AND vessel_id = current_setting('vessel.id', false);
        -- Get related stays
        SELECT id,departed,active INTO current_stays_id,current_stays_departed,current_stays_active
            FROM api.stays s
            WHERE s.vessel_id = current_setting('vessel.id', false)
                AND s.arrived = logbook_rec._to_time;
        -- Update related stays
        UPDATE api.stays s
            SET notes = 'mark for deletion'
            WHERE s.vessel_id = current_setting('vessel.id', false)
                AND s.arrived = logbook_rec._to_time;
        -- Find previous stays
        SELECT id INTO previous_stays_id
            FROM api.stays s
            WHERE s.vessel_id = current_setting('vessel.id', false)
                AND s.arrived < logbook_rec._to_time
                ORDER BY s.arrived DESC LIMIT 1;
        -- Update previous stays with the departed time from current stays
        --  and set the active state from current stays
        UPDATE api.stays
            SET departed = current_stays_departed::TIMESTAMPTZ,
                active = current_stays_active
            WHERE vessel_id = current_setting('vessel.id', false)
                AND id = previous_stays_id;
        -- Clean up, remove invalid logbook and stay entry
        DELETE FROM api.logbook WHERE id = logbook_rec.id;
        RAISE WARNING '-> delete_logbook_fn delete logbook [%]', logbook_rec.id;
        DELETE FROM api.stays WHERE id = current_stays_id;
        RAISE WARNING '-> delete_logbook_fn delete stays [%]', current_stays_id;
        -- Clean up, Subtract (-1) moorages ref count
        UPDATE api.moorages
            SET reference_count = reference_count - 1
            WHERE vessel_id = current_setting('vessel.id', false)
                AND id = previous_stays_id;
        RETURN TRUE;
    END;
$delete_logbook$ LANGUAGE plpgsql security definer;

-- Allow users to update certain columns on specific TABLES on API schema add reference_count, when deleting a log
GRANT UPDATE (name, notes, stay_code, home_flag, reference_count) ON api.moorages TO user_role;

-- Allow users to update certain columns on specific TABLES on API schema add track_geojson
GRANT UPDATE (name, _from, _to, notes, track_geojson) ON api.logbook TO user_role;

DROP FUNCTION IF EXISTS api.timelapse2_fn;
CREATE OR REPLACE FUNCTION api.timelapse2_fn(
    IN start_log INTEGER DEFAULT NULL,
    IN end_log INTEGER DEFAULT NULL,
    IN start_date TEXT DEFAULT NULL,
    IN end_date TEXT DEFAULT NULL,
    OUT geojson JSONB) RETURNS JSONB AS $timelapse2$
    DECLARE
        _geojson jsonb;
    BEGIN
        -- Using sub query to force id order by time
        -- Merge GIS track_geom into a GeoJSON Points
        IF start_log IS NOT NULL AND public.isnumeric(start_log::text) AND public.isnumeric(end_log::text) THEN
            SELECT jsonb_agg(
                        jsonb_build_object('type', 'Feature',
                                            'properties', f->'properties',
                                            'geometry', jsonb_build_object( 'coordinates', f->'geometry'->'coordinates', 'type', 'Point'))
                    ) INTO _geojson
            FROM (
                SELECT jsonb_array_elements(track_geojson->'features') AS f, m.name AS m_name
                    FROM api.logbook, api.moorages m
                    WHERE l.id >= start_log
                        AND l.id <= end_log
                        AND l.track_geojson IS NOT NULL
                        AND l._from_moorage_id = m.id
                    ORDER BY l._from_time ASC
            ) AS sub
            WHERE (f->'geometry'->>'type') = 'Point';
        ELSIF start_date IS NOT NULL AND public.isdate(start_date::text) AND public.isdate(end_date::text) THEN
            SELECT jsonb_agg(
                        jsonb_build_object('type', 'Feature',
                                            'properties', f->'properties',
                                            'geometry', jsonb_build_object( 'coordinates', f->'geometry'->'coordinates', 'type', 'Point'))
                    ) INTO _geojson
            FROM (
                SELECT jsonb_array_elements(track_geojson->'features') AS f, m.name AS m_name
                    FROM api.logbook, api.moorages m
                    WHERE l._from_time >= start_date::TIMESTAMPTZ
                        AND l._to_time <= end_date::TIMESTAMPTZ + interval '23 hours 59 minutes'
                        AND l.track_geojson IS NOT NULL
                        AND l._from_moorage_id = m.id
                    ORDER BY l._from_time ASC
            ) AS sub
            WHERE (f->'geometry'->>'type') = 'Point';
        ELSE
            SELECT jsonb_agg(
                        jsonb_build_object('type', 'Feature',
                                            'properties', f->'properties',
                                            'geometry', jsonb_build_object( 'coordinates', f->'geometry'->'coordinates', 'type', 'Point'))
                    ) INTO _geojson
            FROM (
                SELECT jsonb_array_elements(track_geojson->'features') AS f, m.name AS m_name
                    FROM api.logbook, api.moorages m
                    WHERE l.track_geojson IS NOT NULL
                    AND l._from_moorage_id = m.id
                    ORDER BY l._from_time ASC
            ) AS sub
            WHERE (f->'geometry'->>'type') = 'Point';
        END IF;
        -- Return a GeoJSON MultiLineString
        -- result _geojson [null, null]
        raise WARNING 'result _geojson %' , _geojson;
        SELECT jsonb_build_object(
            'type', 'FeatureCollection',
            'features', _geojson ) INTO geojson;
    END;
$timelapse2$ LANGUAGE plpgsql;
-- Description
COMMENT ON FUNCTION
    api.timelapse2_fn
    IS 'Export all selected logs geojson `track_geojson` to a geojson as points including properties';

-- Update version
UPDATE public.app_settings
	SET value='0.7.2'
	WHERE "name"='app.version';