390 lines
15 KiB
Kotlin
390 lines
15 KiB
Kotlin
// app/src/main/java/com/example/mobilepos/util/PdfGenerator.kt
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package com.example.mobilepos.util
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import android.content.Context
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import android.graphics.pdf.PdfDocument
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import android.graphics.Canvas
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import android.graphics.Paint
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import android.graphics.Color
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import android.graphics.Typeface
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import java.io.File
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import java.io.FileOutputStream
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import java.text.SimpleDateFormat
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import java.util.*
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import com.example.mobilepos.data.models.*
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import com.google.gson.Gson
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object PdfGenerator {
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private const val PAGE_WIDTH = 595 // A4幅（ポイント）
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private const val PAGE_HEIGHT = 842 // A4高さ（ポイント）
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private const val MARGIN = 40
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private const val CONTENT_WIDTH = PAGE_WIDTH - (MARGIN * 2)
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fun generateQuotationPdf(
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context: Context,
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document: DocumentEntity,
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customer: CustomerEntity,
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fileName: String = "quotation_${document.id}.pdf"
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): File? {
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return try {
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val pdfDocument = PdfDocument()
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var pageHeight = PAGE_HEIGHT
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var yPosition = MARGIN
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val pageInfo = PdfDocument.PageInfo.Builder(PAGE_WIDTH, pageHeight, 1).create()
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var page = pdfDocument.startPage(pageInfo)
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var canvas = page.canvas
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// ヘッダー
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yPosition = drawHeader(canvas, yPosition, "見積書")
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yPosition += 20
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// 会社情報（左上）
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yPosition = drawCompanyInfo(canvas, yPosition)
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yPosition += 20
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// 見積情報
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canvas.drawText("見積日：${formatDate(document.documentDate)}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 20
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canvas.drawText("見積番号：QT-${document.id.toString().padStart(6, '0')}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 30
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// 顧客情報
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yPosition = drawCustomerInfo(canvas, yPosition, customer)
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yPosition += 20
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// 区切り線
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canvas.drawLine(MARGIN.toFloat(), yPosition.toFloat(), (PAGE_WIDTH - MARGIN).toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 10
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// 商品テーブルヘッダー
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yPosition = drawTableHeader(canvas, yPosition)
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yPosition += 5
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// 商品行
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val items = parseDocumentItems(document.items)
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for (item in items) {
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if (yPosition > PAGE_HEIGHT - 100) {
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// 新しいページ
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pdfDocument.finishPage(page)
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val newPageInfo = PdfDocument.PageInfo.Builder(PAGE_WIDTH, pageHeight, pdfDocument.pages.size + 1).create()
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page = pdfDocument.startPage(newPageInfo)
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canvas = page.canvas
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yPosition = MARGIN
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}
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yPosition = drawTableRow(canvas, yPosition, item)
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}
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yPosition += 10
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canvas.drawLine(MARGIN.toFloat(), yPosition.toFloat(), (PAGE_WIDTH - MARGIN).toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 15
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// 合計
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yPosition = drawTotals(canvas, yPosition, document)
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yPosition += 20
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// 支払期限
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val dueDate = formatDate(document.paymentDueDate)
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canvas.drawText("お支払い期限：$dueDate", MARGIN.toFloat(), yPosition.toFloat(), getPaint(bold = true))
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yPosition += 20
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canvas.drawText("お支払い方法：${document.paymentMethod ?: "銀行振込"}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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// 備考
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if (!document.notes.isNullOrEmpty()) {
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yPosition += 20
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canvas.drawText("備考：", MARGIN.toFloat(), yPosition.toFloat(), getPaint(bold = true))
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yPosition += 15
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val noteLines = document.notes!!.split("\n")
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for (line in noteLines) {
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canvas.drawText(line, MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 15
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}
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}
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pdfDocument.finishPage(page)
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// ファイル保存
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val outputFile = File(context.getExternalFilesDir(null), fileName)
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val fos = FileOutputStream(outputFile)
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pdfDocument.writeTo(fos)
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fos.close()
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pdfDocument.close()
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outputFile
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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fun generateInvoicePdf(
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context: Context,
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document: DocumentEntity,
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customer: CustomerEntity,
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fileName: String = "invoice_${document.id}.pdf"
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): File? {
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return try {
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val pdfDocument = PdfDocument()
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var pageHeight = PAGE_HEIGHT
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var yPosition = MARGIN
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val pageInfo = PdfDocument.PageInfo.Builder(PAGE_WIDTH, pageHeight, 1).create()
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var page = pdfDocument.startPage(pageInfo)
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var canvas = page.canvas
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// ヘッダー
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yPosition = drawHeader(canvas, yPosition, "請求書")
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yPosition += 20
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// 会社情報
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yPosition = drawCompanyInfo(canvas, yPosition)
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yPosition += 20
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// 請求情報
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canvas.drawText("請求日：${formatDate(document.documentDate)}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 20
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canvas.drawText("請求番号：INV-${document.id.toString().padStart(6, '0')}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 30
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// 顧客情報
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yPosition = drawCustomerInfo(canvas, yPosition, customer)
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yPosition += 20
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// 区切り線
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canvas.drawLine(MARGIN.toFloat(), yPosition.toFloat(), (PAGE_WIDTH - MARGIN).toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 10
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// 商品テーブル
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yPosition = drawTableHeader(canvas, yPosition)
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yPosition += 5
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val items = parseDocumentItems(document.items)
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for (item in items) {
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if (yPosition > PAGE_HEIGHT - 150) {
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pdfDocument.finishPage(page)
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val newPageInfo = PdfDocument.PageInfo.Builder(PAGE_WIDTH, pageHeight, pdfDocument.pages.size + 1).create()
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page = pdfDocument.startPage(newPageInfo)
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canvas = page.canvas
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yPosition = MARGIN
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}
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yPosition = drawTableRow(canvas, yPosition, item)
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}
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yPosition += 10
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canvas.drawLine(MARGIN.toFloat(), yPosition.toFloat(), (PAGE_WIDTH - MARGIN).toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 15
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// 合計
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yPosition = drawTotals(canvas, yPosition, document)
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yPosition += 20
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// 支払期限・方法
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val dueDate = formatDate(document.paymentDueDate)
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canvas.drawText("お支払い期限：$dueDate", MARGIN.toFloat(), yPosition.toFloat(), getPaint(bold = true))
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yPosition += 20
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canvas.drawText("お支払い方法：${document.paymentMethod ?: "銀行振込"}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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pdfDocument.finishPage(page)
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val outputFile = File(context.getExternalFilesDir(null), fileName)
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val fos = FileOutputStream(outputFile)
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pdfDocument.writeTo(fos)
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fos.close()
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pdfDocument.close()
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outputFile
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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fun generateReceiptPdf(
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context: Context,
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document: DocumentEntity,
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customer: CustomerEntity,
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fileName: String = "receipt_${document.id}.pdf"
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): File? {
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return try {
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val pdfDocument = PdfDocument()
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var pageHeight = PAGE_HEIGHT
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var yPosition = MARGIN
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val pageInfo = PdfDocument.PageInfo.Builder(PAGE_WIDTH, pageHeight, 1).create()
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val page = pdfDocument.startPage(pageInfo)
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val canvas = page.canvas
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// ヘッダー
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yPosition = drawHeader(canvas, yPosition, "領収書")
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yPosition += 20
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// 会社情報
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yPosition = drawCompanyInfo(canvas, yPosition)
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yPosition += 20
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// 領収情報
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canvas.drawText("領収日：${formatDate(document.documentDate)}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 20
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canvas.drawText("領収番号：RCP-${document.id.toString().padStart(6, '0')}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 30
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// 顧客情報
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yPosition = drawCustomerInfo(canvas, yPosition, customer)
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yPosition += 20
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// 金額
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canvas.drawText("お振込金額", MARGIN.toFloat(), yPosition.toFloat(), getPaint(bold = true))
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yPosition += 20
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val totalText = "¥${String.format("%,d", document.total.toLong())}"
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val totalPaint = getPaint(bold = true, size = 36f)
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canvas.drawText(totalText, MARGIN.toFloat(), yPosition.toFloat(), totalPaint)
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yPosition += 40
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// 摘要
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canvas.drawText("摘要：商品・サービス提供代金", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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yPosition += 20
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// 支払い日
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if (document.paidDate != null) {
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canvas.drawText("お支払い日：${formatDate(document.paidDate!!)}", MARGIN.toFloat(), yPosition.toFloat(), getPaint())
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}
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pdfDocument.finishPage(page)
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val outputFile = File(context.getExternalFilesDir(null), fileName)
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val fos = FileOutputStream(outputFile)
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pdfDocument.writeTo(fos)
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fos.close()
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pdfDocument.close()
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outputFile
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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// ========== ヘルパー関数 ==========
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private fun drawHeader(canvas: Canvas, yPosition: Int, title: String): Int {
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val paint = getPaint(bold = true, size = 28f)
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canvas.drawText(title, MARGIN.toFloat(), (yPosition + 25).toFloat(), paint)
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return yPosition + 40
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}
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private fun drawCompanyInfo(canvas: Canvas, yPosition: Int): Int {
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val paint = getPaint(size = 10f)
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var y = yPosition
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canvas.drawText("株式会社 ○○○○", MARGIN.toFloat(), y.toFloat(), paint)
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y += 12
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canvas.drawText("住所：〒000-0000 ○○県○○市○○町1-1", MARGIN.toFloat(), y.toFloat(), paint)
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y += 12
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canvas.drawText("電話：09X-XXXX-XXXX", MARGIN.toFloat(), y.toFloat(), paint)
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y += 12
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canvas.drawText("メール：info@example.com", MARGIN.toFloat(), y.toFloat(), paint)
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return y
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}
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private fun drawCustomerInfo(canvas: Canvas, yPosition: Int, customer: CustomerEntity): Int {
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val paint = getPaint()
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var y = yPosition
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canvas.drawText("ご購入者様", MARGIN.toFloat(), y.toFloat(), paint)
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y += 20
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canvas.drawText(customer.name, MARGIN.toFloat(), y.toFloat(), paint)
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y += 15
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if (!customer.address.isNullOrEmpty()) {
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canvas.drawText("住所：${customer.address}", MARGIN.toFloat(), y.toFloat(), paint)
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y += 15
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}
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if (!customer.phone.isNullOrEmpty()) {
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canvas.drawText("電話：${customer.phone}", MARGIN.toFloat(), y.toFloat(), paint)
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y += 15
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}
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return y
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}
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private fun drawTableHeader(canvas: Canvas, yPosition: Int): Int {
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val paint = getPaint(bold = true)
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val smallPaint = getPaint(size = 10f)
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var x = MARGIN
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canvas.drawText("品目", x.toFloat(), yPosition.toFloat(), paint)
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x += 200
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canvas.drawText("数量", x.toFloat(), yPosition.toFloat(), paint)
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x += 80
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canvas.drawText("単価", x.toFloat(), yPosition.toFloat(), paint)
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x += 80
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canvas.drawText("小計", x.toFloat(), yPosition.toFloat(), paint)
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return yPosition + 15
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}
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private fun drawTableRow(canvas: Canvas, yPosition: Int, item: DocumentItemDto): Int {
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val paint = getPaint(size = 11f)
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val productText = item.productName
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val quantityText = String.format("%.2f", item.quantity)
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val unitPriceText = "¥${String.format("%,d", item.unitPrice.toLong())}"
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val subtotalText = "¥${String.format("%,d", item.subtotal.toLong())}"
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var x = MARGIN
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canvas.drawText(productText, x.toFloat(), yPosition.toFloat(), paint)
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x += 200
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canvas.drawText(quantityText, x.toFloat(), yPosition.toFloat(), paint)
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x += 80
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canvas.drawText(unitPriceText, x.toFloat(), yPosition.toFloat(), paint)
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x += 80
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canvas.drawText(subtotalText, x.toFloat(), yPosition.toFloat(), paint)
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return yPosition + 15
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}
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private fun drawTotals(canvas: Canvas, yPosition: Int, document: DocumentEntity): Int {
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val paint = getPaint()
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val boldPaint = getPaint(bold = true)
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var y = yPosition
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val rightX = (PAGE_WIDTH - MARGIN - 100).toFloat()
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// 小計
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canvas.drawText("小計：", rightX - 80, y.toFloat(), paint)
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canvas.drawText("¥${String.format("%,d", document.subtotal.toLong())}", rightX.toFloat(), y.toFloat(), paint)
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y += 20
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// 税金
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canvas.drawText("税金：", rightX - 80, y.toFloat(), paint)
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canvas.drawText("¥${String.format("%,d", document.tax.toLong())}", rightX.toFloat(), y.toFloat(), paint)
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y += 20
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// 合計
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canvas.drawText("合計：", rightX - 80, y.toFloat(), boldPaint)
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canvas.drawText("¥${String.format("%,d", document.total.toLong())}", rightX.toFloat(), y.toFloat(), boldPaint)
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return y + 20
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}
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private fun getPaint(bold: Boolean = false, size: Float = 12f): Paint {
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return Paint().apply {
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this.typeface = if (bold) Typeface.create(Typeface.DEFAULT, Typeface.BOLD) else Typeface.DEFAULT
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this.textSize = size
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this.color = Color.BLACK
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}
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}
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private fun formatDate(timestamp: Long): String {
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val sdf = SimpleDateFormat("yyyy年MM月dd日", Locale.JAPAN)
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return sdf.format(Date(timestamp))
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}
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private fun parseDocumentItems(itemsJson: String): List<DocumentItemDto> {
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return try {
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val gson = Gson()
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gson.fromJson(itemsJson, Array<DocumentItemDto>::class.java).toList()
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} catch (e: Exception) {
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emptyList()
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}
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}
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}
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