Refactor SOA generation

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/soagen/styles.go

@@ -0,0 +1,89 @@
+// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package soagen
+
+import (
+	"fmt"
+
+	"github.com/xuri/excelize/v2"
+)
+
+// getTextStyle returns the standard text style for string fields
+func getTextStyle() *excelize.Style {
+	return &excelize.Style{
+		Border: []excelize.Border{
+			{Type: "left", Color: "#000000", Style: 1},
+			{Type: "top", Color: "#000000", Style: 1},
+			{Type: "bottom", Color: "#000000", Style: 1},
+			{Type: "right", Color: "#000000", Style: 1},
+		},
+		Alignment: &excelize.Alignment{Horizontal: "left", Vertical: "center", WrapText: true},
+	}
+}
+
+// getHeaderStyle returns the standard header style
+func getHeaderStyle() *excelize.Style {
+	return &excelize.Style{
+		Font: &excelize.Font{Bold: true, Size: 10, Color: "#000000"},
+		Fill: excelize.Fill{Type: "pattern", Color: []string{"#D9D9D9"}, Pattern: 1},
+		Border: []excelize.Border{
+			{Type: "left", Color: "#000000", Style: 1},
+			{Type: "top", Color: "#000000", Style: 1},
+			{Type: "bottom", Color: "#000000", Style: 1},
+			{Type: "right", Color: "#000000", Style: 1},
+		},
+		Alignment: &excelize.Alignment{Horizontal: "center", Vertical: "center", WrapText: true},
+	}
+}
+
+// getCellStyle returns the standard cell style
+func getCellStyle() *excelize.Style {
+	return &excelize.Style{
+		Border: []excelize.Border{
+			{Type: "left", Color: "#000000", Style: 1},
+			{Type: "top", Color: "#000000", Style: 1},
+			{Type: "bottom", Color: "#000000", Style: 1},
+			{Type: "right", Color: "#000000", Style: 1},
+		},
+		Alignment: &excelize.Alignment{Horizontal: "center", Vertical: "center", WrapText: true},
+	}
+}
+
+func createCellStyle(f *excelize.File, style *excelize.Style) (int, error) {
+	styleID, err := f.NewStyle(style)
+	if err != nil {
+		return 0, fmt.Errorf("cannot create style: %w", err)
+	}
+	return styleID, nil
+}
+
+func applyDataValidation(f *excelize.File, sheetName, col string, row int, validation []string) error {
+	if len(validation) == 0 {
+		return nil
+	}
+
+	dv := excelize.NewDataValidation(true)
+	dv.Sqref = fmt.Sprintf("%s%d:%s1000", col, row, col) // Apply to reasonable range
+	dv.SetDropList(validation)
+	dv.SetError(excelize.DataValidationErrorStyleStop, "Invalid Input", "Please select from the dropdown list.")
+	return f.AddDataValidation(sheetName, dv)
+}
+
+func setColumnWidth(f *excelize.File, sheetName, col string, width float64) error {
+	if width > 0 {
+		f.SetColWidth(sheetName, col, col, width)
+	}
+	return nil
+}