package api

import (
	"context"
	"fmt"

	"github.com/pkg/errors"
)

// {
//     "allowance": {
//         "allowed": true,
//         "reason": null
//     },
//     "downgrade": {
//         "available": false,
//         "reason": "no_available_downgrades"
//     },
//     "release": {
//         "channel": "stable"
//     },
//     "update_server": {
//         "address": "https://update-provider.cloud.emlid.com/api/client/v1/firmware-available"
//     },
//     "upgrade": {
//         "available": false,
//         "reason": "up_to_date",
//         "required": false
//     }
// }

type Updater struct {
	Allowance    Allowance    `json:"allowance,omitempty"`
	Downgrade    Downgrade    `json:"downgrade,omitempty"`
	Release      Release      `json:"release,omitempty"`
	UpdateServer UpdateServer `json:"update_server,omitempty"`
	Upgrade      Upgrade      `json:"upgrade,omitempty"`
}

type Allowance struct {
	Allowed bool `json:"allowed,omitempty"`
	Reason  any  `json:"reason,omitempty"`
}

type Downgrade struct {
	Available bool   `json:"available,omitempty"`
	Reason    string `json:"reason,omitempty"`
}

type Release struct {
	Channel string `json:"channel,omitempty"`
}

type UpdateServer struct {
	Address string `json:"address,omitempty"`
}

type Upgrade struct {
	Available bool   `json:"available,omitempty"`
	Reason    string `json:"reason,omitempty"`
	Required  bool   `json:"required,omitempty"`
}

func GetUpdater(ctx context.Context, addr string) (*Updater, error) {
	url := fmt.Sprintf("http://%s/updater", addr)

	updater := &Updater{}
	if err := GetJSON(url, updater); err != nil {
		return nil, errors.WithStack(err)
	}

	return updater, nil
}