package omadaapi

import (
	"fmt"
	"strconv"

	"git.tordarus.net/tordarus/ezhttp"
	"git.tordarus.net/tordarus/omada-api/model"
)

func (api *Api) GetDevices(siteID model.SiteID) (<-chan *model.Device, <-chan error) {
	out := make(chan *model.Device, 1000)
	errChan := make(chan error)

	go func() {
		defer close(out)

		for page := 1; ; page++ {
			resp, err := api.getDevices(page, siteID)
			if err != nil {
				errChan <- err
				return
			}

			for _, v := range resp.Result.Data {
				out <- &v
			}

			if resp.Result.CurrentPage*resp.Result.CurrentSize >= resp.Result.TotalRows {
				break
			}
		}
	}()

	return out, errChan
}

func (api *Api) getDevices(page int, siteID model.SiteID) (*model.PagedResponse[model.Device], error) {
	api.refreshMutex.RLock()
	defer api.refreshMutex.RUnlock()

	req := ezhttp.Request(
		ezhttp.Template(api.tmpl),
		ezhttp.Method("GET"),
		ezhttp.AppendPath(fmt.Sprintf("/openapi/v1/%s/sites/%s/devices", api.config.OmadaID, siteID)),
		ezhttp.Query(
			"page", strconv.Itoa(page),
			"pageSize", "100",
		),
	)

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

	response, err := ezhttp.ParseJsonResponse[model.PagedResponse[model.Device]](resp)
	if err != nil {
		return nil, err
	}

	return response, nil
}