FlameInTheDark /
dtbot
| Conditions | 14 |
| Total Lines | 144 |
| Code Lines | 92 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Complex classes like darksky.GetWeatherImage often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
| 1 | package darksky |
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| 142 | func GetWeatherImage(ctx *bot.Context) (buf *bytes.Buffer, err error) { |
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| 143 | var ( |
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| 144 | forecast DarkSkyResponse |
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| 145 | city = ctx.GetGuild().WeatherCity |
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| 146 | ) |
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| 147 | |||
| 148 | if len(ctx.Args) > 0 { |
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| 149 | city = strings.Join(ctx.Args, "+") |
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| 150 | } |
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| 151 | |||
| 152 | loc, err := location.New(ctx.Conf.General.GeonamesUsername, city) |
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| 153 | if err != nil { |
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| 154 | fmt.Printf("Location API: %v\n", err) |
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| 155 | return |
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| 156 | } |
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| 157 | |||
| 158 | cityName := loc.Geonames[0].CountryName + ", " + loc.Geonames[0].Name |
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| 159 | |||
| 160 | // Get coordinates and get weather data |
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| 161 | newlat, newlng := loc.GetCoordinates() |
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| 162 | resp, err := http.Get(fmt.Sprintf("https://api.darksky.net/forecast/%v/%v,%v?units=ca&lang=%v", |
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| 163 | ctx.Conf.DarkSky.Token, newlat, newlng, ctx.Conf.General.Language)) |
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| 164 | if err != nil { |
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| 165 | fmt.Printf("Weather API: %v\n", err) |
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| 166 | return |
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| 167 | } |
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| 168 | |||
| 169 | err = json.NewDecoder(resp.Body).Decode(&forecast) |
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| 170 | if err != nil { |
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| 171 | fmt.Printf("Weather Decode: %v\n", err) |
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| 172 | return |
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| 173 | } |
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| 174 | |||
| 175 | // Drawing weather widget |
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| 176 | gc := gg.NewContext(400, 650) |
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| 177 | gc.SetRGBA(0, 0, 0, 0) |
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| 178 | gc.Clear() |
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| 179 | |||
| 180 | // Template |
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| 181 | gc.SetRGB255(242, 97, 73) |
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| 182 | gc.DrawRoundedRectangle(0, 0, 400, 650, 10) |
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| 183 | gc.Fill() |
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| 184 | |||
| 185 | // Weather lines |
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| 186 | gc.SetRGB255(234, 89, 65) |
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| 187 | gc.DrawRectangle(0, 250, 400, 100) |
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| 188 | gc.DrawRectangle(0, 450, 400, 100) |
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| 189 | gc.Fill() |
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| 190 | |||
| 191 | gc.SetLineWidth(2) |
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| 192 | gc.SetRGBA(0, 0, 0, 0.05) |
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| 193 | gc.DrawLine(0, 250, 400, 250) |
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| 194 | gc.DrawLine(0, 349, 400, 348) |
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| 195 | gc.DrawLine(0, 450, 400, 450) |
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| 196 | gc.DrawLine(0, 549, 400, 548) |
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| 197 | gc.Stroke() |
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| 198 | |||
| 199 | // Text |
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| 200 | if err := gc.LoadFontFace("lato.ttf", 20); err != nil { |
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| 201 | panic(err) |
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| 202 | } |
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| 203 | |||
| 204 | // Header (place and date) |
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| 205 | gc.SetRGBA(1, 1, 1, 0.7) |
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| 206 | gc.DrawStringAnchored(cityName, 10, 15, 0, 0.5) |
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| 207 | gc.SetRGBA(1, 1, 1, 0.4) |
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| 208 | gc.DrawStringAnchored(time.Now().Format("Jan 2, 2006"), 270, 15, 0, 0.5) |
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| 209 | |||
| 210 | // First weather data |
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| 211 | gc.SetRGBA(1, 1, 1, 0.5) |
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| 212 | if err := gc.LoadFontFace("lato.ttf", 30); err != nil { |
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| 213 | panic(err) |
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| 214 | } |
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| 215 | |||
| 216 | gc.DrawStringAnchored(fmt.Sprintf("%.2v:00", forecast.Currently.GetTime(forecast.Timezone, ctx.Conf.General.Timezone).Hour()), 50, 200, 0.5, 0.5) |
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| 217 | gc.DrawStringAnchored(fmt.Sprintf("H:%v%%", int(forecast.Currently.Humidity*100)), 200, 200, 0.5, 0.5) |
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| 218 | gc.DrawStringAnchored(fmt.Sprintf("C:%v%%", int(forecast.Currently.CloudCover*100)), 350, 200, 0.5, 0.5) |
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| 219 | |||
| 220 | gc.SetRGBA(1, 1, 1, 1) |
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| 221 | if err := gc.LoadFontFace("lato.ttf", 90); err != nil { |
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| 222 | panic(err) |
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| 223 | } |
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| 224 | |||
| 225 | gc.DrawStringAnchored(fmt.Sprintf("%v°", int(forecast.Currently.Temperature)), 100, 120, 0.5, 0.5) |
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| 226 | |||
| 227 | if err := gc.LoadFontFace("weathericons.ttf", 70); err != nil { |
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| 228 | panic(err) |
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| 229 | } |
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| 230 | |||
| 231 | gc.DrawStringAnchored(ctx.WeatherCode(fmt.Sprintf("%v", forecast.Currently.Icon)), 250, 120, 0, 0.7) |
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| 232 | |||
| 233 | if err := gc.LoadFontFace("lato.ttf", 30); err != nil { |
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| 234 | panic(err) |
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| 235 | } |
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| 236 | |||
| 237 | // Time |
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| 238 | gc.DrawStringAnchored(fmt.Sprintf("%.2v:00", forecast.Hourly.Data[2].GetTime(forecast.Timezone, ctx.Conf.General.Timezone).Hour()), 100, 285, 0, 0.5) |
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| 239 | gc.DrawStringAnchored(fmt.Sprintf("%.2v:00", forecast.Hourly.Data[4].GetTime(forecast.Timezone, ctx.Conf.General.Timezone).Hour()), 100, 385, 0, 0.5) |
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| 240 | gc.DrawStringAnchored(fmt.Sprintf("%.2v:00", forecast.Hourly.Data[6].GetTime(forecast.Timezone, ctx.Conf.General.Timezone).Hour()), 100, 485, 0, 0.5) |
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| 241 | gc.DrawStringAnchored(fmt.Sprintf("%.2v:00", forecast.Hourly.Data[8].GetTime(forecast.Timezone, ctx.Conf.General.Timezone).Hour()), 100, 585, 0, 0.5) |
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| 242 | |||
| 243 | // Humidity and cloudiness |
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| 244 | if err := gc.LoadFontFace("lato.ttf", 20); err != nil { |
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| 245 | panic(err) |
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| 246 | } |
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| 247 | gc.SetRGBA(1, 1, 1, 0.5) |
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| 248 | |||
| 249 | gc.DrawStringAnchored(fmt.Sprintf("H:%v%%", int(forecast.Hourly.Data[2].Humidity*100)), 100, 315, 0, 0.5) |
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| 250 | gc.DrawStringAnchored(fmt.Sprintf("H:%v%%", int(forecast.Hourly.Data[4].Humidity*100)), 100, 415, 0, 0.5) |
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| 251 | gc.DrawStringAnchored(fmt.Sprintf("H:%v%%", int(forecast.Hourly.Data[6].Humidity*100)), 100, 515, 0, 0.5) |
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| 252 | gc.DrawStringAnchored(fmt.Sprintf("H:%v%%", int(forecast.Hourly.Data[8].Humidity*100)), 100, 615, 0, 0.5) |
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| 253 | |||
| 254 | gc.DrawStringAnchored(fmt.Sprintf("C:%v%%", int(forecast.Hourly.Data[2].CloudCover*100)), 170, 315, 0, 0.5) |
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| 255 | gc.DrawStringAnchored(fmt.Sprintf("C:%v%%", int(forecast.Hourly.Data[4].CloudCover*100)), 170, 415, 0, 0.5) |
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| 256 | gc.DrawStringAnchored(fmt.Sprintf("C:%v%%", int(forecast.Hourly.Data[6].CloudCover*100)), 170, 515, 0, 0.5) |
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| 257 | gc.DrawStringAnchored(fmt.Sprintf("C:%v%%", int(forecast.Hourly.Data[8].CloudCover*100)), 170, 615, 0, 0.5) |
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| 258 | |||
| 259 | gc.SetRGBA(1, 1, 1, 1) |
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| 260 | if err := gc.LoadFontFace("lato.ttf", 50); err != nil { |
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| 261 | panic(err) |
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| 262 | } |
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| 263 | |||
| 264 | // Temperature |
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| 265 | gc.DrawStringAnchored(fmt.Sprintf("%v°", int(forecast.Hourly.Data[2].Temperature)), 320, 300, 0.5, 0.5) |
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| 266 | gc.DrawStringAnchored(fmt.Sprintf("%v°", int(forecast.Hourly.Data[4].Temperature)), 320, 400, 0.5, 0.5) |
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| 267 | gc.DrawStringAnchored(fmt.Sprintf("%v°", int(forecast.Hourly.Data[6].Temperature)), 320, 500, 0.5, 0.5) |
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| 268 | gc.DrawStringAnchored(fmt.Sprintf("%v°", int(forecast.Hourly.Data[8].Temperature)), 320, 600, 0.5, 0.5) |
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| 269 | |||
| 270 | if err := gc.LoadFontFace("weathericons.ttf", 40); err != nil { |
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| 271 | panic(err) |
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| 272 | } |
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| 273 | |||
| 274 | // Weather icon |
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| 275 | gc.DrawStringAnchored(ctx.WeatherCode(fmt.Sprintf("%v", forecast.Hourly.Data[2].Icon)), 20, 300, 0, 0.7) |
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| 276 | gc.DrawStringAnchored(ctx.WeatherCode(fmt.Sprintf("%v", forecast.Hourly.Data[4].Icon)), 20, 400, 0, 0.7) |
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| 277 | gc.DrawStringAnchored(ctx.WeatherCode(fmt.Sprintf("%v", forecast.Hourly.Data[6].Icon)), 20, 500, 0, 0.7) |
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| 278 | gc.DrawStringAnchored(ctx.WeatherCode(fmt.Sprintf("%v", forecast.Hourly.Data[8].Icon)), 20, 600, 0, 0.7) |
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| 279 | |||
| 280 | buf = new(bytes.Buffer) |
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| 281 | pngerr := png.Encode(buf, gc.Image()) |
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| 282 | if pngerr != nil { |
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| 283 | fmt.Printf("Image: %v\n", pngerr) |
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| 284 | } |
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| 285 | return |
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| 286 | } |
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| 439 |
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