feat: add point and query result struct (openGemini#14)

Signed-off-by: ZhangJian He <shoothzj@gmail.com>

opengemini/point.go

@@ -0,0 +1,45 @@
+package opengemini
+
+import "time"
+
+type Point struct {
+	Measurement string
+	Precision   string
+	Time        time.Time
+	Tags        map[string]string
+	Fields      map[string]interface{}
+}
+
+func (p *Point) AddTag(key string, value string) {
+	if p.Tags == nil {
+		p.Tags = make(map[string]string)
+	}
+	p.Tags[key] = value
+}
+
+func (p *Point) AddField(key string, value interface{}) {
+	if p.Fields == nil {
+		p.Fields = make(map[string]interface{})
+	}
+	p.Fields[key] = value
+}
+
+func (p *Point) SetTime(t time.Time) {
+	p.Time = t
+}
+
+func (p *Point) SetPrecision(precision string) {
+	p.Precision = precision
+}
+
+func (p *Point) SetMeasurement(name string) {
+	p.Measurement = name
+}
+
+type BatchPoints struct {
+	Points []*Point
+}
+
+func (bp *BatchPoints) AddPoint(p *Point) {
+	bp.Points = append(bp.Points, p)
+}

opengemini/query_result.go

@@ -0,0 +1,13 @@
+package opengemini
+
+// SeriesResult contains the results of a series query
+type SeriesResult struct {
+	Series []Series `json:"series,omitempty"`
+	Error  string   `json:"error,omitempty"`
+}
+
+// QueryResult is the top-level struct
+type QueryResult struct {
+	Results []SeriesResult `json:"results,omitempty"`
+	Error   string         `json:"error,omitempty"`
+}

opengemini/series.go

@@ -0,0 +1,9 @@
+package opengemini
+
+// Series defines the structure for series data
+type Series struct {
+	Name    string            `json:"name,omitempty"`
+	Tags    map[string]string `json:"tags,omitempty"`
+	Columns []string          `json:"columns,omitempty"`
+	Values  [][]interface{}   `json:"values,omitempty"`
+}