package teams

import (
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"time"

	"github.com/google/go-querystring/query"
)

type GetTeamsParams struct {
	// The name of the team to get. This parameter and the id parameter are mutually exclusive; you must specify the team’s name or ID but not both.
	Name *string `url:"name,omitempty"`

	// The ID of the team to get. This parameter and the name parameter are mutually exclusive; you must specify the team’s name or ID but not both.
	ID *string `url:"id,omitempty"`
}

type GetTeamsResponse struct {
	// A list that contains the single team that you requested.
	Teams []Team `json:"teams"`
}

type Team struct {
	// The list of team members.
	Users []struct {
		// An ID that identifies the team member.
		UserID string `json:"user_id"`

		// The team member’s login name.
		UserLogin string `json:"user_login"`

		// The team member’s display name.
		UserName string `json:"user_name"`
	} `json:"users"`

	// A URL to the team’s background image.
	BackgroundImageURL string `json:"background_image_url"`

	// A URL to the team’s banner.
	Banner string `json:"banner"`

	// The UTC date and time (in RFC3339 format) of when the team was created.
	CreatedAt time.Time `json:"created_at"`

	// The UTC date and time (in RFC3339 format) of the last time the team was updated.
	UpdatedAt time.Time `json:"updated_at"`

	// The team’s description. The description may contain formatting such as Markdown, HTML, newline (\n) characters, etc.
	Info string `json:"info"`

	// A URL to a thumbnail image of the team’s logo.
	ThumbnailURL string `json:"thumbnail_url"`

	// The team’s name.
	TeamName string `json:"team_name"`

	// The team’s display name.
	TeamDisplayName string `json:"team_display_name"`

	// An ID that identifies the team.
	ID string `json:"id"`
}

// Gets information about the specified Twitch team. Read More
//
// Requires an app access token or user access token.
func (c *Teams) GetTeams(ctx context.Context, params *GetTeamsParams) (*GetTeamsResponse, error) {
	v, _ := query.Values(params)
	endpoint := c.baseUrl.ResolveReference(&url.URL{Path: "teams", RawQuery: v.Encode()})

	req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint.String(), nil)
	if err != nil {
		return nil, err
	}

	resp, err := c.client.Do(req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	statusOK := resp.StatusCode >= 200 && resp.StatusCode < 300
	if !statusOK {
		return nil, fmt.Errorf("failed to get teams (%d)", resp.StatusCode)
	}

	var data GetTeamsResponse
	if err := json.NewDecoder(resp.Body).Decode(&data); err != nil {
		return nil, err
	}

	return &data, nil
}