168 lines
8.7 KiB
C#
168 lines
8.7 KiB
C#
using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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namespace Elwig.Helpers.Billing {
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public class BillingVariant : Billing {
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private readonly int AvNr;
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public BillingVariant(int year, int avnr) : base(year) {
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AvNr = avnr;
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}
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public async Task Calculate() {
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await DeleteInDb();
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await SetCalcTime();
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await CalculatePrices();
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await CalculateModifiers();
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await CalculateMemberModifiers();
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}
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public async Task Commit() {
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await Revert();
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using var cnx = await AppDbContext.ConnectAsync();
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await AppDbContext.ExecuteBatch(cnx, $"""
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INSERT INTO credit (year, tgnr, mgnr, avnr, net_amount, prev_net_amount, vat, modifiers, prev_modifiers)
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SELECT s.year,
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COALESCE(t.tgnr, 0) + ROW_NUMBER() OVER(ORDER BY m.mgnr) AS tgnr,
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m.mgnr,
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v.avnr,
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ROUND(p.amount / POW(10, s.precision - 2)) AS net_amount,
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ROUND(lp.amount / POW(10, s.precision - 2)) AS prev_amount,
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IIF(m.buchführend, s.vat_normal, s.vat_flatrate) AS vat,
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ROUND(COALESCE(u.total_penalty, 0) / POW(10, 4 - 2)) AS modifiers,
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lc.modifiers AS prev_modifiers
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FROM season s
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JOIN payment_variant v ON v.year = s.year
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LEFT JOIN payment_variant l ON l.year = s.year
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AND l.avnr = (SELECT avnr
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FROM payment_variant
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WHERE year = s.year AND NOT test_variant
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ORDER BY COALESCE(transfer_date, date) DESC, avnr DESC
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LIMIT 1)
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LEFT JOIN (SELECT year, MAX(tgnr) AS tgnr FROM credit GROUP BY year) t ON t.year = s.year
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JOIN (SELECT DISTINCT year, mgnr FROM delivery) d ON d.year = s.year
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JOIN member m ON m.mgnr = d.mgnr
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LEFT JOIN payment_member lp ON (lp.year, lp.avnr, lp.mgnr) = (l.year, l.avnr, m.mgnr)
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LEFT JOIN payment_member p ON (p.year, p.avnr, p.mgnr) = (v.year, v.avnr, m.mgnr)
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LEFT JOIN credit lc ON (lc.year, lc.avnr, lc.mgnr) = (l.year, l.avnr, m.mgnr)
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LEFT JOIN (SELECT year, mgnr,
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SUM(COALESCE(IIF(u.weight = 0, -t.penalty_none, 0), 0) +
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COALESCE(IIF(u.diff < 0, -t.penalty_amount, 0), 0) +
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COALESCE(u.diff * t.penalty_per_kg, 0)) AS total_penalty
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FROM v_under_delivery u
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JOIN area_commitment_type t ON t.vtrgid = u.bucket
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GROUP BY year, mgnr) u ON (u.year, u.mgnr) = (s.year, m.mgnr)
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WHERE s.year = {Year} AND v.avnr = {AvNr};
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UPDATE payment_variant SET test_variant = FALSE WHERE (year, avnr) = ({Year}, {AvNr});
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""");
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}
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public async Task Revert() {
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using var cnx = await AppDbContext.ConnectAsync();
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await AppDbContext.ExecuteBatch(cnx, $"""
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DELETE FROM credit WHERE (year, avnr) = ({Year}, {AvNr});
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UPDATE payment_variant SET test_variant = TRUE WHERE (year, avnr) = ({Year}, {AvNr});
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""");
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}
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protected async Task SetCalcTime() {
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using var cnx = await AppDbContext.ConnectAsync();
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await AppDbContext.ExecuteBatch(cnx, $"""
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UPDATE payment_variant SET calc_time = UNIXEPOCH() WHERE (year, avnr) = ({Year}, {AvNr})
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""");
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}
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protected async Task DeleteInDb() {
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using var cnx = await AppDbContext.ConnectAsync();
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await AppDbContext.ExecuteBatch(cnx, $"""
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DELETE FROM payment_delivery_part_bucket WHERE (year, avnr) = ({Year}, {AvNr});
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DELETE FROM payment_delivery_part WHERE (year, avnr) = ({Year}, {AvNr});
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DELETE FROM payment_member WHERE (year, avnr) = ({Year}, {AvNr});
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UPDATE payment_variant SET calc_time = NULL WHERE (year, avnr) = ({Year}, {AvNr});
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""");
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}
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protected async Task CalculateMemberModifiers() {
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using var cnx = await AppDbContext.ConnectAsync();
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if (App.Client.IsMatzen) {
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var lastYears = 3;
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var multiplier = 0.50;
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var modName = "Treue%";
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await AppDbContext.ExecuteBatch(cnx, $"""
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INSERT INTO payment_member (year, avnr, mgnr, net_amount, mod_abs, mod_rel)
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SELECT c.year, {AvNr}, s.mgnr, 0,
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ROUND(s.sum * COALESCE(m.abs, 0)),
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COALESCE(m.rel, 0)
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FROM (SELECT {Year} AS year, mgnr,
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ROUND(AVG(sum) * {multiplier}) AS baseline,
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COUNT(*) = {lastYears} AND MIN(sum) > 0 AS allowed
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FROM v_stat_member
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WHERE year > {Year} - {lastYears}
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GROUP BY mgnr
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HAVING allowed) c
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JOIN v_stat_member s ON (s.year, s.mgnr) = (c.year, c.mgnr)
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LEFT JOIN modifier m ON m.year = c.year AND m.name LIKE '{modName}'
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WHERE sum >= baseline
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ON CONFLICT DO UPDATE
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SET mod_abs = mod_abs + excluded.mod_abs,
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mod_rel = mod_rel + excluded.mod_rel
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""");
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}
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}
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protected async Task CalculatePrices() {
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using var cnx = await AppDbContext.ConnectAsync();
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var parts = new List<(int Year, int DId, int DPNr, int BktNr, string SortId, string Discr, int Value, bool MinQuw, double Oe, double Kmw)>();
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using (var cmd = cnx.CreateCommand()) {
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cmd.CommandText = $"""
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SELECT d.year, d.did, d.dpnr, b.bktnr, d.sortid, b.discr, b.value, d.min_quw, d.oe, d.kmw
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FROM delivery_part_bucket b
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JOIN v_delivery d ON (d.year, d.did, d.dpnr) = (b.year, b.did, b.dpnr)
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WHERE b.year = {Year}
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""";
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using var reader = await cmd.ExecuteReaderAsync();
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while (await reader.ReadAsync()) {
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parts.Add((
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reader.GetInt32(0), reader.GetInt32(1), reader.GetInt32(2), reader.GetInt32(3),
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reader.GetString(4), reader.GetString(5), reader.GetInt32(6),
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reader.GetBoolean(7), reader.GetDouble(8), reader.GetDouble(9)
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));
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}
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}
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var inserts = new List<(int Year, int DId, int DPNr, int BktNr, long Price, long Amount)>();
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foreach (var part in parts) {
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var price = !part.MinQuw ? 0.5m : ((part.BktNr == 2 ? 0.8m : (part.BktNr == 1 ? 0.7m : 0.6m)) + ((decimal)(part.Oe - 73) * 0.005m)); // TODO
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price += (AvNr - 1) * 0.2m;
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var priceL = Utils.DecToDb(price, 4);
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var amount = Utils.DecToDb(price * part.Value, 4);
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inserts.Add((part.Year, part.DId, part.DPNr, part.BktNr, priceL, amount));
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}
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await AppDbContext.ExecuteBatch(cnx, $"""
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INSERT INTO payment_delivery_part_bucket (year, did, dpnr, bktnr, avnr, price, amount)
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VALUES {string.Join(",\n ", inserts.Select(i => $"({i.Year}, {i.DId}, {i.DPNr}, {i.BktNr}, {AvNr}, {i.Price}, {i.Amount})"))};
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""");
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}
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protected async Task CalculateModifiers() {
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using var cnx = await AppDbContext.ConnectAsync();
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await AppDbContext.ExecuteBatch(cnx, $"""
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INSERT INTO payment_delivery_part (year, did, dpnr, avnr, net_amount, mod_abs, mod_rel)
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SELECT d.year, d.did, d.dpnr, {AvNr}, 0, COALESCE(m.abs, 0), COALESCE(m.rel, 0)
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FROM delivery_part d
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LEFT JOIN delivery_part_modifier p ON (p.year, p.did, p.dpnr) = (d.year, d.did, d.dpnr)
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LEFT JOIN modifier m ON m.modid = p.modid
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WHERE d.year = {Year}
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ON CONFLICT DO UPDATE
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SET mod_abs = mod_abs + excluded.mod_abs,
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mod_rel = mod_rel + excluded.mod_rel
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""");
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}
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}
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}
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