package moderation

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

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

type GetUnbanRequestsParams struct {
	// The ID of the broadcaster whose chat room the user is banned from chatting in.
	BroadcasterID string `url:"broadcaster_id"`

	// The ID of the broadcaster or a user that has permission to moderate the broadcaster’s chat room.
	// This ID must match the user ID in the user access token.
	ModeratorID string `url:"moderator_id"`

	// Filter by a status. Accepted values:
	// pending, approved, denied, acknowledged, or canceled
	Status string `url:"status"`

	// The ID used to filter what unban requests are returned.
	UserID *string `url:"user_id"`

	// Cursor used to get next page of results. Pagination object in response contains cursor value.
	After *types.Cursor `url:"after"`

	// The maximum number of items to return per page in response
	First *int `url:"first"`
}

type GetUnbanRequestsResponse struct {
	// A list that contains information about the channel's unban requests.
	Data []GetUnbanRequestsResponseData `json:"data"`

	// Contains information used to page through a list of results.
	// The object is empty if there are no more pages left to page through.
	Pagination types.Pagination `json:"pagination"`
}

type GetUnbanRequestsResponseData struct {
	// Unban request ID.
	ID string `json:"id"`

	// User ID of broadcaster whose channel is receiving the unban request.
	BroadcasterID string `json:"broadcaster_id"`

	// The broadcaster's display name.
	BroadcasterName string `json:"broadcaster_name"`

	// The broadcaster's login name.
	BroadcasterLogin string `json:"broadcaster_login"`

	// User ID of moderator who approved/denied the request.
	ModeratorID string `json:"moderator_id"`

	// The moderator's login name
	ModeratorLogin string `json:"moderator_login"`

	// The moderator's display name
	ModeratorName string `json:"moderator_name"`

	// User ID of the requestor who is asking for an unban.
	UserID string `json:"user_id"`

	// The user's login name.
	UserLogin string `json:"user_login"`

	// The user's display name.
	UserName string `json:"user_name"`

	// Text of the request from the requesting user.
	Text string `json:"text"`

	// Status of the request. One of:
	// pending, approved, denied, acknowledged, or canceled
	Status string `json:"status"`

	// Timestamp of when the unban request was created.
	CreatedAt time.Time `json:"created_at"`

	// Timestamp of when moderator/broadcaster approved or denied the request.
	ResolvedAt *time.Time `json:"resolved_at"`

	// Text input by the resolver (moderator) of the unban. request
	ResolutionText string `json:"resolution_text"`
}

// Gets a list of unban requests for a broadcaster’s channel.
//
// Requires a user access token that includes the moderator:read:unban_requests or moderator:manage:unban_requests scope.
// Query parameter moderator_id must match the user_id in the user access token.
func (m *Moderation) GetUnbanRequests(ctx context.Context, params *GetUnbanRequestsParams) (*GetUnbanRequestsResponse, error) {
	v, _ := query.Values(params)

	req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint.Make(m.baseUrl, "moderation/unban_requests", v), nil)
	if err != nil {
		return nil, err
	}

	res, err := m.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 unban requests (%d)", res.StatusCode)
	}

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

	return &data, nil
}