package common

import (
	"encoding/json"
	"fmt"
	"hash/fnv"
	"strings"
	"time"
)

func (todo Todo) Store(store *BoltStore, user string) error {
	if todo.Owner != user {
		return fmt.Errorf("unauthorized user")
	}
	todo.LastModified = time.Now()
	todoJson, err := json.Marshal(todo)
	if err != nil {
		return err
	}
	return store.SaveValueToBucket(user, todo.Name, string(todoJson))
}

func (todoRequest StoreTodoRequest) Store(store *BoltStore, user string) error {
	todo := Todo{
		Name:         todoRequest.Name,
		Description:  todoRequest.Description,
		Status:       todoRequest.Status,
		Owner:        user,
		LastModified: time.Now(),
	}
	todoJson, err := json.Marshal(todo)
	if err != nil {
		return err
	}
	return store.SaveValueToBucket(user, todo.Name, string(todoJson))
}

func (todoList TodoList) FindByName(name string) (Todo, bool) {
	for _, todo := range todoList.Todos {
		if todo.Name == name {
			return todo, true
		}
	}
	return Todo{}, false
}

func (todo Todo) PrintIndexed(index int) {

	if todo.Deleted {
		return
	}
	var statusColor string

	// Select color based on the status (case-insensitive)
	switch strings.ToLower(todo.Status) {
	case Done:
		statusColor = ColorGreen
	case WIP:
		statusColor = ColorYellow
	case Pending, NotStarted:
		statusColor = ColorBlue
	case Blocked, Failed:
		statusColor = ColorRed
	default:
		statusColor = ColorWhite // No color for unknown statuses
	}

	for _, label := range []string{"test", "example", "example-test", "High prio"} {
		bg := getLabelColor(label)
		fmt.Printf(" %s %s %s", bg, label, ColorReset)
	}

	fmt.Printf("\n%s%d)%s %s%-20s%s", ColorCyan, index, ColorReset, ColorWhite, todo.Name, ColorReset)

	fmt.Printf("  %s %s%s\n", statusColor, strings.ToUpper(todo.Status), ColorReset)

	// 5. Description (Indented and slightly dimmer if possible, or standard)
	fmt.Printf("   %s\n", todo.Description)

	// 6. Footer (Timestamp in Gray to de-emphasize)
	lastMod := todo.LastModified.Format("2006-01-02 15:04")
	fmt.Printf("   %sLast Modified: %s%s\n", ColorGray, lastMod, ColorReset)

	// 7. Separator (Optional, but helps readability)
	fmt.Printf("   %s----------------------------%s\n", ColorGray, ColorReset)
}

func getLabelColor(label string) string {
	h := fnv.New32a()
	h.Write([]byte(label))
	idx := h.Sum32() % uint32(len(LabelColors))
	return LabelColors[idx]
}

func (t Todo) IsEqual(other Todo) bool {
	return t.Name == other.Name &&
		t.Description == other.Description &&
		t.Status == other.Status &&
		t.Owner == other.Owner &&
		t.Deleted == other.Deleted
}

func (t Todo) IsEqualIgnoringStatus(other Todo) bool {
	return t.Name == other.Name &&
		t.Description == other.Description &&
		t.Owner == other.Owner &&
		t.Deleted == other.Deleted
}