package shell

import (
	"Portifolio/internal/model"
	"Portifolio/internal/service"
	"bufio"
	"database/sql"
	"fmt"
	"strconv"
	"strings"
)

func AddRevenue(scanner *bufio.Scanner, db *sql.DB) {
	fmt.Print("  Company ID: ")
	scanner.Scan()
	companyID, err := strconv.Atoi(strings.TrimSpace(scanner.Text()))
	if err != nil {
		fmt.Println("  ✗ Invalid company ID")
		return
	}

	fmt.Print("  Currency ID: ")
	scanner.Scan()
	currencyID, err := strconv.Atoi(strings.TrimSpace(scanner.Text()))
	if err != nil {
		fmt.Println("  ✗ Invalid currency ID")
		return
	}

	fmt.Print("  Period type (Q/H/Y): ")
	scanner.Scan()
	periodType := strings.ToUpper(strings.TrimSpace(scanner.Text()))

	fmt.Print("  Year: ")
	scanner.Scan()
	year, err := strconv.Atoi(strings.TrimSpace(scanner.Text()))
	if err != nil {
		fmt.Println("  ✗ Invalid year")
		return
	}

	fmt.Print("  Index (Q: 1-4 | H: 1-2 | Y: 1): ")
	scanner.Scan()
	idx, err := strconv.Atoi(strings.TrimSpace(scanner.Text()))
	if err != nil {
		fmt.Println("  ✗ Invalid index")
		return
	}

	fmt.Print("  Category (product/location/total): ")
	scanner.Scan()
	category := strings.TrimSpace(scanner.Text())

	fmt.Print("  Label (e.g. iPhone, Americas): ")
	scanner.Scan()
	label := strings.TrimSpace(scanner.Text())

	fmt.Print("  Value: ")
	scanner.Scan()
	value, err := strconv.ParseFloat(strings.TrimSpace(scanner.Text()), 64)
	if err != nil {
		fmt.Println("  ✗ Invalid value")
		return
	}

	var period model.Period
	switch periodType {
	case "Q":
		period = model.QuarterPeriod(year, idx)
	case "H":
		period = model.HalfYearPeriod(year, idx)
	case "Y":
		period = model.FullYearPeriod(year)
	default:
		fmt.Println("  ✗ Invalid period type")
		return
	}

	if err := service.InsertRevenue(db, companyID, currencyID, category, label, value, period); err != nil {
		fmt.Println("  ✗ Error:", err)
		return
	}
	fmt.Printf("  ✓ Revenue entry added: %s / %s = %.2f (%s)\n", category, label, value, period.String())
}

func ListRevenue(scanner *bufio.Scanner, db *sql.DB) {
	fmt.Print("  Company ID: ")
	scanner.Scan()
	companyID, err := strconv.Atoi(strings.TrimSpace(scanner.Text()))
	if err != nil {
		fmt.Println("  ✗ Invalid company ID")
		return
	}

	fmt.Print("  Period type (Q/H/Y): ")
	scanner.Scan()
	periodType := strings.ToUpper(strings.TrimSpace(scanner.Text()))

	fmt.Print("  Year: ")
	scanner.Scan()
	year, _ := strconv.Atoi(strings.TrimSpace(scanner.Text()))

	fmt.Print("  Index: ")
	scanner.Scan()
	idx, _ := strconv.Atoi(strings.TrimSpace(scanner.Text()))

	entries, err := service.GetRevenue(db, companyID, model.PeriodType(periodType), year, idx)
	if err != nil {
		fmt.Println("  ✗ Error:", err)
		return
	}

	fmt.Printf("\n  %-12s %-20s %12s\n", "CATEGORY", "LABEL", "VALUE")
	fmt.Println("  " + strings.Repeat("-", 46))
	for _, e := range entries {
		fmt.Printf("  %-12s %-20s %12.2f\n", e.Category, e.Label, e.Value)
	}
}

func SumRevenue(scanner *bufio.Scanner, db *sql.DB) {
	fmt.Print("  Company ID: ")
	scanner.Scan()
	companyID, err := strconv.Atoi(strings.TrimSpace(scanner.Text()))
	if err != nil {
		fmt.Println("  ✗ Invalid company ID")
		return
	}

	fmt.Print("  Period type to sum (Q/H/Y): ")
	scanner.Scan()
	periodType := strings.ToUpper(strings.TrimSpace(scanner.Text()))

	fmt.Print("  Year: ")
	scanner.Scan()
	year, _ := strconv.Atoi(strings.TrimSpace(scanner.Text()))

	rs, err := service.SumRevenue(db, companyID, model.PeriodType(periodType), year)
	if err != nil {
		fmt.Println("  ✗ Error:", err)
		return
	}

	fmt.Printf("\n  Revenue Sum — FY%d\n", year)
	fmt.Printf("  Total: %.2f\n\n", rs.Total)
	fmt.Println("  By Category:")
	for cat, sum := range rs.Categories {
		fmt.Printf("    %-15s %.2f\n", cat, sum)
	}
	fmt.Println("\n  By Label:")
	for label, sum := range rs.Labels {
		fmt.Printf("    %-20s %.2f\n", label, sum)
	}
}