// SPDX-FileCopyrightText: Amolith <amolith@secluded.site>
//
// SPDX-License-Identifier: AGPL-3.0-or-later

package person

import (
	"fmt"

	"git.secluded.site/go-lunatask"
	"git.secluded.site/lune/internal/client"
	"git.secluded.site/lune/internal/completion"
	"git.secluded.site/lune/internal/ui"
	"git.secluded.site/lune/internal/validate"
	"github.com/spf13/cobra"
)

// UpdateCmd updates a person. Exported for potential use by shortcuts.
var UpdateCmd = &cobra.Command{
	Use:   "update ID",
	Short: "Update a person",
	Long: `Update an existing person in Lunatask.

Accepts a UUID or lunatask:// deep link.
Only specified flags are modified; other fields remain unchanged.`,
	Args: cobra.ExactArgs(1),
	RunE: runUpdate,
}

func init() {
	UpdateCmd.Flags().String("first", "", "First name")
	UpdateCmd.Flags().String("last", "", "Last name")
	UpdateCmd.Flags().StringP("relationship", "r", "", "Relationship strength")

	_ = UpdateCmd.RegisterFlagCompletionFunc("relationship", completion.Relationships)
}

func runUpdate(cmd *cobra.Command, args []string) error {
	id, err := validate.Reference(args[0])
	if err != nil {
		return err
	}

	apiClient, err := client.New()
	if err != nil {
		return err
	}

	builder := apiClient.NewPersonUpdate(id)

	applyUpdateNames(cmd, builder)

	if err := applyUpdateRelationship(cmd, builder); err != nil {
		return err
	}

	person, err := ui.Spin("Updating person…", func() (*lunatask.Person, error) {
		return builder.Update(cmd.Context())
	})
	if err != nil {
		return err
	}

	fmt.Fprintln(cmd.OutOrStdout(), ui.Success.Render("Updated person: "+person.ID))

	return nil
}

func applyUpdateNames(cmd *cobra.Command, builder *lunatask.PersonUpdateBuilder) {
	if first, _ := cmd.Flags().GetString("first"); first != "" {
		builder.FirstName(first)
	}

	if last, _ := cmd.Flags().GetString("last"); last != "" {
		builder.LastName(last)
	}
}

func applyUpdateRelationship(cmd *cobra.Command, builder *lunatask.PersonUpdateBuilder) error {
	rel, _ := cmd.Flags().GetString("relationship")
	if rel == "" {
		return nil
	}

	strength, err := validate.RelationshipStrength(rel)
	if err != nil {
		return err
	}

	builder.WithRelationshipStrength(strength)

	return nil
}