package conduit

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

	"github.com/google/go-querystring/query"
	"go.fifitido.net/twitch/api/types"
)

type GetConduitShardsParams struct {
	// Conduit ID.
	ConduitID string `url:"conduit_id"`

	// Status to filter by.
	Status *Status `url:"status,omitempty"`

	// The cursor used to get the next page of results. The pagination object in the response contains the cursor’s value.
	Cursor *types.Cursor `url:"cursor,omitempty"`
}

type GetConduitShardsResponse struct {
	// List of information about a conduit's shards.
	Data []Shard `json:"data"`

	// The cursor used to get the next page of results. Use the cursor to set the request’s after query parameter.
	Pagination types.Pagination `json:"pagination"`
}

// Gets a lists of all shards for a conduit.
//
// Requires an app access token.
func (c *Conduit) GetConduitShards(ctx context.Context, params *GetConduitShardsParams) (*GetConduitShardsResponse, error) {
	v, _ := query.Values(params)
	endpoint := c.baseUrl.ResolveReference(&url.URL{Path: "eventsub/conduits/shards", RawQuery: v.Encode()})

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

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

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

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

	return &data, nil
}