| 192 | } |
| 193 | |
| 194 | export function compareStates( |
| 195 | prevState: GitState | null, |
| 196 | newState: GitState |
| 197 | ): StateComparison { |
| 198 | if (!prevState) { |
| 199 | return { |
| 200 | hasChanges: true, |
| 201 | changedLayers: ['basic', 'status', 'detailed'], |
| 202 | changedFields: Object.keys(newState) as (keyof GitState)[], |
| 203 | }; |
| 204 | } |
| 205 | |
| 206 | const changedLayers: GitStateLayer[] = []; |
| 207 | const changedFields: (keyof GitState)[] = []; |
| 208 | |
| 209 | const basicFields: (keyof GitState)[] = [ |
| 210 | 'isRepository', 'currentBranch', 'ahead', 'behind', 'hasChanges' |
| 211 | ]; |
| 212 | for (const field of basicFields) { |
| 213 | if (prevState[field] !== newState[field]) { |
| 214 | changedFields.push(field); |
| 215 | if (!changedLayers.includes('basic')) { |
| 216 | changedLayers.push('basic'); |
| 217 | } |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | |
| 222 | const statusFields: (keyof GitState)[] = ['staged', 'unstaged', 'untracked', 'conflicts']; |
| 223 | for (const field of statusFields) { |
| 224 | const prevVal = JSON.stringify(prevState[field]); |
| 225 | const newVal = JSON.stringify(newState[field]); |
| 226 | if (prevVal !== newVal) { |
| 227 | changedFields.push(field); |
| 228 | if (!changedLayers.includes('status')) { |
| 229 | changedLayers.push('status'); |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | |
| 235 | const detailedFields: (keyof GitState)[] = ['branches', 'commits']; |
| 236 | for (const field of detailedFields) { |
| 237 | const prevVal = JSON.stringify(prevState[field]); |
| 238 | const newVal = JSON.stringify(newState[field]); |
| 239 | if (prevVal !== newVal) { |
| 240 | changedFields.push(field); |
| 241 | if (!changedLayers.includes('detailed')) { |
| 242 | changedLayers.push('detailed'); |
| 243 | } |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | return { |
| 248 | hasChanges: changedLayers.length > 0, |
| 249 | changedLayers, |
| 250 | changedFields, |
| 251 | }; |