-- Upgrade the database from commit 4d977848 to 3d70a460.
--
-- NOTE: This upgrade must be applied to every schema in the database.
-- NOTE: Each application starts a transaction, which must be committed
-- or rolled back.
--
-- This adds the `meta` column to the output of the following views:
--
--  * raw_lines_summary; and
--  * sequences_summary
--  
-- To apply, run as the dougal user, for every schema in the database:
--
-- psql <<EOF
-- SET search_path TO survey_*,public;
-- \i $THIS_FILE
-- COMMIT;
-- EOF
--
-- NOTE: It can be applied multiple times without ill effect.


BEGIN;

CREATE OR REPLACE VIEW raw_lines_summary AS
 WITH summary AS (
         SELECT DISTINCT rs.sequence,
            first_value(rs.point) OVER w AS fsp,
            last_value(rs.point) OVER w AS lsp,
            first_value(rs.tstamp) OVER w AS ts0,
            last_value(rs.tstamp) OVER w AS ts1,
            count(rs.point) OVER w AS num_points,
            count(pp.point) OVER w AS num_preplots,
            public.st_distance(first_value(rs.geometry) OVER w, last_value(rs.geometry) OVER w) AS length,
            ((public.st_azimuth(first_value(rs.geometry) OVER w, last_value(rs.geometry) OVER w) * (180)::double precision) / pi()) AS azimuth
           FROM (raw_shots rs
             LEFT JOIN preplot_points pp USING (line, point))
          WINDOW w AS (PARTITION BY rs.sequence ORDER BY rs.tstamp ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
        )
 SELECT rl.sequence,
    rl.line,
    s.fsp,
    s.lsp,
    s.ts0,
    s.ts1,
    (s.ts1 - s.ts0) AS duration,
    s.num_points,
    s.num_preplots,
    (( SELECT count(*) AS count
           FROM preplot_points
          WHERE ((preplot_points.line = rl.line) AND (((preplot_points.point >= s.fsp) AND (preplot_points.point <= s.lsp)) OR ((preplot_points.point >= s.lsp) AND (preplot_points.point <= s.fsp))))) - s.num_preplots) AS missing_shots,
    s.length,
    s.azimuth,
    rl.remarks,
    rl.ntbp,
    rl.meta
   FROM (summary s
     JOIN raw_lines rl USING (sequence));

DROP VIEW sequences_summary;
CREATE OR REPLACE VIEW sequences_summary AS
 SELECT rls.sequence,
    rls.line,
    rls.fsp,
    rls.lsp,
    fls.fsp AS fsp_final,
    fls.lsp AS lsp_final,
    rls.ts0,
    rls.ts1,
    fls.ts0 AS ts0_final,
    fls.ts1 AS ts1_final,
    rls.duration,
    fls.duration AS duration_final,
    rls.num_preplots,
    COALESCE(fls.num_points, rls.num_points) AS num_points,
    COALESCE(fls.missing_shots, rls.missing_shots) AS missing_shots,
    COALESCE(fls.length, rls.length) AS length,
    COALESCE(fls.azimuth, rls.azimuth) AS azimuth,
    rls.remarks,
    fls.remarks AS remarks_final,
    rls.meta,
    fls.meta AS meta_final,
        CASE
            WHEN (rls.ntbp IS TRUE) THEN 'ntbp'::text
            WHEN (fls.sequence IS NULL) THEN 'raw'::text
            ELSE 'final'::text
        END AS status
   FROM (raw_lines_summary rls
     LEFT JOIN final_lines_summary fls USING (sequence));

--
--NOTE Run `COMMIT;` now if all went well
--