package linodego

import (
	"context"
	"fmt"
	"time"

	"github.com/go-resty/resty/v2"
)

// Ticket represents a support ticket object
type Ticket struct {
	ID          int           `json:"id"`
	Attachments []string      `json:"attachments"`
	Closed      *time.Time    `json:"-"`
	Description string        `json:"description"`
	Entity      *TicketEntity `json:"entity"`
	GravatarID  string        `json:"gravatar_id"`
	Opened      *time.Time    `json:"-"`
	OpenedBy    string        `json:"opened_by"`
	Status      TicketStatus  `json:"status"`
	Summary     string        `json:"summary"`
	Updated     *time.Time    `json:"-"`
	UpdatedBy   string        `json:"updated_by"`
}

// TicketEntity refers a ticket to a specific entity
type TicketEntity struct {
	ID    int    `json:"id"`
	Label string `json:"label"`
	Type  string `json:"type"`
	URL   string `json:"url"`
}

// TicketStatus constants start with Ticket and include Linode API Ticket Status values
type TicketStatus string

// TicketStatus constants reflect the current status of a Ticket
const (
	TicketNew    TicketStatus = "new"
	TicketClosed TicketStatus = "closed"
	TicketOpen   TicketStatus = "open"
)

// TicketsPagedResponse represents a paginated ticket API response
type TicketsPagedResponse struct {
	*PageOptions
	Data []Ticket `json:"data"`
}

func (TicketsPagedResponse) endpoint(_ ...any) string {
	return "support/tickets"
}

func (resp *TicketsPagedResponse) castResult(r *resty.Request, e string) (int, int, error) {
	res, err := coupleAPIErrors(r.SetResult(TicketsPagedResponse{}).Get(e))
	if err != nil {
		return 0, 0, err
	}
	castedRes := res.Result().(*TicketsPagedResponse)
	resp.Data = append(resp.Data, castedRes.Data...)
	return castedRes.Pages, castedRes.Results, nil
}

// ListTickets returns a collection of Support Tickets on the Account. Support Tickets
// can be both tickets opened with Linode for support, as well as tickets generated by
// Linode regarding the Account. This collection includes all Support Tickets generated
// on the Account, with open tickets returned first.
func (c *Client) ListTickets(ctx context.Context, opts *ListOptions) ([]Ticket, error) {
	response := TicketsPagedResponse{}
	err := c.listHelper(ctx, &response, opts)
	if err != nil {
		return nil, err
	}
	return response.Data, nil
}

// GetTicket gets a Support Ticket on the Account with the specified ID
func (c *Client) GetTicket(ctx context.Context, ticketID int) (*Ticket, error) {
	e := fmt.Sprintf("support/tickets/%d", ticketID)
	req := c.R(ctx).SetResult(&Ticket{})
	r, err := coupleAPIErrors(req.Get(e))
	if err != nil {
		return nil, err
	}
	return r.Result().(*Ticket), nil
}