99 lines
1.9 KiB
Go
99 lines
1.9 KiB
Go
package condition
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import (
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"encoding/json"
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"fmt"
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"strconv"
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"strings"
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"aiaa-notification-service/internal/model"
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)
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// Evaluate checks all conditions against data. Returns true if ALL conditions pass.
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// An empty conditions slice always returns true.
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func Evaluate(conditions []model.Condition, data map[string]interface{}) bool {
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if len(conditions) == 0 {
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return true
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}
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for _, c := range conditions {
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if !evaluateOne(c, data) {
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return false
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}
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}
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return true
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}
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func evaluateOne(c model.Condition, data map[string]interface{}) bool {
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fieldVal, fieldExists := data[c.Field]
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switch c.Op {
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case "exists":
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return fieldExists
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case "not_exists":
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return !fieldExists
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case "eq":
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if !fieldExists {
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return false
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}
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return fmt.Sprintf("%v", fieldVal) == c.Value
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case "ne":
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if !fieldExists {
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return false
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}
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return fmt.Sprintf("%v", fieldVal) != c.Value
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case "contains":
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if !fieldExists {
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return false
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}
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return strings.Contains(fmt.Sprintf("%v", fieldVal), c.Value)
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case "gt", "gte", "lt", "lte":
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if !fieldExists {
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return false
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}
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return compareNumeric(fieldVal, c.Value, c.Op)
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default:
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return false
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}
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}
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func compareNumeric(fieldVal interface{}, value string, op string) bool {
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fv, err := toFloat64(fieldVal)
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if err != nil {
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return false
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}
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cv, err := strconv.ParseFloat(value, 64)
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if err != nil {
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return false
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}
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switch op {
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case "gt":
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return fv > cv
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case "gte":
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return fv >= cv
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case "lt":
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return fv < cv
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case "lte":
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return fv <= cv
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}
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return false
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}
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func toFloat64(v interface{}) (float64, error) {
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switch val := v.(type) {
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case float64:
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return val, nil
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case float32:
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return float64(val), nil
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case int:
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return float64(val), nil
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case int64:
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return float64(val), nil
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case string:
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return strconv.ParseFloat(val, 64)
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case json.Number:
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return val.Float64()
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default:
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return 0, fmt.Errorf("cannot convert %T to float64", v)
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}
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}
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