Add convective outlook Postgres read adapter

internal/adapters/outbound/postgres/outlooks_read.go

@@ -0,0 +1,92 @@
+// outlooks_read.go executes outlook-run and outlook queries.
+// Layer: adapters/outbound/postgres outlook feature.
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+
+	"gitea.maximumdirect.net/ejr/weatherfeeder/model"
+)
+
+func (r *Repository) LatestConvectiveOutlookRun(ctx context.Context) (*model.WeatherOutlookRun, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("postgres repository is not configured")
+	}
+
+	var row outlookRunParentRow
+	err := r.db.QueryRowContext(ctx, queryLatestConvectiveOutlookRun).Scan(
+		&row.EventID,
+		&row.LocationID,
+		&row.LocationName,
+		&row.Latitude,
+		&row.Longitude,
+		&row.AsOf,
+		&row.IssuedAt,
+	)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, fmt.Errorf("query latest convective outlook run: %w", err)
+	}
+
+	run := mapOutlookRunParentRow(row)
+	outlooks, err := r.loadOutlooks(ctx, row.EventID)
+	if err != nil {
+		return nil, err
+	}
+	run.Outlooks = outlooks
+
+	return &run, nil
+}
+
+func (r *Repository) loadOutlooks(ctx context.Context, eventID string) ([]model.WeatherOutlook, error) {
+	rows, err := r.db.QueryContext(ctx, queryOutlooksForRun, eventID)
+	if err != nil {
+		return nil, fmt.Errorf("query outlooks: %w", err)
+	}
+	defer rows.Close()
+
+	out := make([]model.WeatherOutlook, 0)
+	for rows.Next() {
+		var row outlookRow
+		if err := rows.Scan(
+			&row.OutlookIndex,
+			&row.OutlookID,
+			&row.Provider,
+			&row.Product,
+			&row.Day,
+			&row.OutlookType,
+			&row.Label,
+			&row.LabelText,
+			&row.SeverityRank,
+			&row.ValidFrom,
+			&row.ValidTo,
+			&row.IssuedAt,
+			&row.ExpiresAt,
+			&row.Forecaster,
+			&row.Headline,
+			&row.Summary,
+			&row.Discussion,
+			&row.SourceURL,
+			&row.ImageURL,
+			&row.ContainsLocation,
+			&row.GeometryJSON,
+		); err != nil {
+			return nil, fmt.Errorf("scan outlook row: %w", err)
+		}
+
+		outlook, err := mapOutlookRow(row)
+		if err != nil {
+			return nil, fmt.Errorf("map outlook row: %w", err)
+		}
+		out = append(out, outlook)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, fmt.Errorf("iterate outlook rows: %w", err)
+	}
+	return out, nil
+}