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Merge pull request #110 from GrimmiMeloni/energysite
initial implementation for Powerwall control
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package tesla | ||
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import ( | ||
"encoding/json" | ||
"errors" | ||
"fmt" | ||
"strconv" | ||
"strings" | ||
) | ||
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// this represents site_info endpoint | ||
type EnergySite struct { | ||
ID string `json:"id"` | ||
SiteName string `json:"site_name"` | ||
BackupReservePercent int64 `json:"backup_reserve_percent,omitempty"` | ||
DefaultRealMode string `json:"default_real_mode,omitempty"` | ||
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productId int64 | ||
c *Client | ||
} | ||
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type EnergySiteStatus struct { | ||
ResourceType string `json:"resource_type"` | ||
SiteName string `json:"site_name"` | ||
GatewayId string `json:"gateway_id"` | ||
EnergyLeft float64 `json:"energy_left"` | ||
TotalPackEnergy uint64 `json:"total_pack_energy"` | ||
PercentageCharged float64 `json:"percentage_charged"` | ||
BatteryType string `json:"battery_type"` | ||
BackupCapable bool `json:"backup_capable"` | ||
BatteryPower int64 `json:"battery_power"` | ||
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c *Client | ||
} | ||
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type SiteInfoResponse struct { | ||
Response *EnergySite `json:"response"` | ||
} | ||
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type SiteStatutsResponse struct { | ||
Response *EnergySiteStatus `json:"response"` | ||
} | ||
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// SiteCommandResponse is the response from the Tesla API after POSTing a command. | ||
type SiteCommandResponse struct { | ||
Response struct { | ||
Code int `json:"code"` | ||
Message string `json:"message"` | ||
} `json:"response"` | ||
} | ||
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// return fetches the energy site for the given product ID | ||
func (c *Client) EnergySite(productID int64) (*EnergySite, error) { | ||
siteInfoResponse := &SiteInfoResponse{} | ||
if err := c.getJSON(c.baseURL+"/energy_sites/"+strconv.FormatInt(productID, 10)+"/site_info", siteInfoResponse); err != nil { | ||
return nil, err | ||
} | ||
siteInfoResponse.Response.c = c | ||
siteInfoResponse.Response.productId = productID | ||
return siteInfoResponse.Response, nil | ||
} | ||
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func (s *EnergySite) EnergySiteStatus() (*EnergySiteStatus, error) { | ||
siteStatusResponse := &SiteStatutsResponse{} | ||
if err := s.c.getJSON(s.statusPath(), siteStatusResponse); err != nil { | ||
return nil, err | ||
} | ||
siteStatusResponse.Response.c = s.c | ||
return siteStatusResponse.Response, nil | ||
} | ||
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func (s *EnergySite) basePath() string { | ||
return strings.Join([]string{s.c.baseURL, "energy_sites", strconv.FormatInt(s.productId, 10)}, "/") | ||
} | ||
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func (s *EnergySite) statusPath() string { | ||
return strings.Join([]string{s.basePath(), "site_status"}, "/") | ||
} | ||
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func (s *EnergySite) SetBatteryReserve(percent uint64) error { | ||
url := s.basePath() + "/backup" | ||
payload := fmt.Sprintf(`{"backup_reserve_percent":%d}`, percent) | ||
body, err := s.sendCommand(url, []byte(payload)) | ||
if err != nil { | ||
return err | ||
} | ||
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response := SiteCommandResponse{} | ||
if err := json.Unmarshal(body, &response); err != nil { | ||
return err | ||
} | ||
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if response.Response.Code != 201 { | ||
return fmt.Errorf("batteryReserve failed: %s", response.Response.Message) | ||
} | ||
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return nil | ||
} | ||
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// Sends a command to the vehicle | ||
func (s *EnergySite) sendCommand(url string, reqBody []byte) ([]byte, error) { | ||
body, err := s.c.post(url, reqBody) | ||
if err != nil { | ||
return nil, err | ||
} | ||
if len(body) > 0 { | ||
response := &CommandResponse{} | ||
if err := json.Unmarshal(body, response); err != nil { | ||
return nil, err | ||
} | ||
if !response.Response.Result && response.Response.Reason != "" { | ||
return nil, errors.New(response.Response.Reason) | ||
} | ||
} | ||
return body, nil | ||
} |
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package main | ||
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import ( | ||
"context" | ||
"flag" | ||
"fmt" | ||
"os" | ||
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"github.com/bogosj/tesla" | ||
) | ||
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var tokenPath = flag.String("token", "", "path to token file") | ||
var reservePercentage = flag.Int64("backupPercentage", -1, "backup percentage to set") | ||
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// example that demos fetching of site information and optionally setting the battery reserve percentage for the site | ||
func main() { | ||
flag.Parse() | ||
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if *tokenPath == "" { | ||
fmt.Println("--token must be specified") | ||
os.Exit(1) | ||
} | ||
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if err := run(context.Background(), *tokenPath, *reservePercentage); err != nil { | ||
fmt.Println(err) | ||
os.Exit(1) | ||
} | ||
} | ||
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func run(ctx context.Context, tokenPath string, reservePercentage int64) error { | ||
c, err := tesla.NewClient(ctx, tesla.WithTokenFile(tokenPath)) | ||
if err != nil { | ||
return err | ||
} | ||
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prods, err := c.Products() | ||
if err != nil { | ||
return err | ||
} | ||
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for i, p := range prods { | ||
if i > 0 { | ||
fmt.Println("----") | ||
} | ||
fmt.Printf("ID: %s\n", p.ID) | ||
fmt.Printf("ResourceType %s\n", p.ResourceType) | ||
if p.EnergySiteId != 0 { | ||
fmt.Printf("EnergySiteId: %d\n", p.EnergySiteId) | ||
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es, err := c.EnergySite(p.EnergySiteId) | ||
if err != nil { | ||
fmt.Printf("error fetching site info: %+v\n", err) | ||
os.Exit(1) | ||
} | ||
fmt.Printf("EnergySite: %+v\n", *es) | ||
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esi, err := es.EnergySiteStatus() | ||
if err != nil { | ||
fmt.Printf("error fetching site status: %+v\n", err) | ||
os.Exit(1) | ||
} | ||
fmt.Printf("EnergySiteInfo: %+v\n", *esi) | ||
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if reservePercentage != -1 { | ||
if err := es.SetBatteryReserve(uint64(reservePercentage)); err != nil { | ||
fmt.Printf("error setting battery reserve: %+v\n", err) | ||
os.Exit(1) | ||
} | ||
} | ||
} | ||
} | ||
return nil | ||
} |
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Original file line number | Diff line number | Diff line change |
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package tesla | ||
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type Product struct { | ||
EnergySiteId int64 `json:"energy_site_id,omitempty"` | ||
ResourceType string `json:"resource_type"` | ||
ID string `json:"id"` | ||
AssetSiteId string `json:"asset_site_id,omitempty"` | ||
GatewayId string `json:"gateway_id,omitempty"` | ||
WarpSiteNumber string `json:"warp_site_number,omitempty"` | ||
EnergyLeft float64 `json:"energy_left,omitempty"` | ||
TotalPackEnergy uint64 `json:"total_pack_energy,omitempty"` | ||
PercentageCharged float64 `json:"percentage_charged,omitempty"` | ||
BatteryType string `json:"battery_type,omitempty"` | ||
BackupCapable bool `json:"backup_capable,omitempty"` | ||
BatteryPower int64 `json:"battery_power,omitempty"` | ||
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c *Client | ||
} | ||
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// ProductResponse contains the product details from the Tesla API. | ||
type ProductsResponse struct { | ||
Response []*Product `json:"response"` | ||
Count int `json:"count"` | ||
} | ||
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// Products fetches the products associated to a Tesla account via the API. | ||
func (c *Client) Products() ([]*Product, error) { | ||
productsResponse := &ProductsResponse{} | ||
if err := c.getJSON(c.baseURL+"/products", productsResponse); err != nil { | ||
return nil, err | ||
} | ||
for _, v := range productsResponse.Response { | ||
v.c = c | ||
} | ||
return productsResponse.Response, nil | ||
} |