dupcheck.go

package main

import (
	"encoding/csv"
	"fmt"
	"os"
	"strconv"
)

// Order 取引
type Order struct {
	date    string
	money   int
	line    int
	content string
	regtype string
}

func main() {
	file, err := os.Open("仕訳帳 （2019年01月_2019年12月）.csv")

	if err != nil {
		panic(err)
	}
	defer file.Close()

	reader := csv.NewReader(file)
	var line []string
	var order []Order
	var lineNum int = 0

	for {
		line, err = reader.Read()
		if err != nil {
			break
		}
		var money, _ = strconv.Atoi(line[3])
		lineNum++
		order = append(order, Order{date: line[1], money: money, line: lineNum, content: line[15], regtype: line[2]})
	}
	for _, dupOrder := range GetDuplicateData(order) {
		fmt.Println(dupOrder)
	}
}

// GetDuplicateData 重複行を返却
func GetDuplicateData(orders []Order) []Order {
	var duplicateOrder []Order

	for _, order1 := range orders {
		for _, order2 := range orders {
			if order1.line != order2.line &&
				(order1.date == order2.date && order1.money == order2.money && order1.content == order2.content && order1.regtype == order2.regtype) {
				duplicateOrder = append(duplicateOrder, order1)
			}
		}
	}
	return duplicateOrder
}