reports.go

package main

import (
	"time"
)

// SparkleStats datatype
type SparkleStats struct {
	TopGiven []string `json:"top_given,omitempty"`
	TopGivers []string `json:"top_givers,omitempty"`
	FirstSparkle time.Time `json:"first_sparkle"`
	SimilarUsers []string `json:"similar_users,omitempty"`
	Categories []string `json:"categories"`
}

type SparkleGraph struct {
	Edges []SparkleGraphEdge `json:"edges"`
}

type SparkleGraphEdge struct {
	Sparkler string `json:"sparkler"`
	Sparklee string `json:"sparklee"`
	Weight int `json:"weight"`
}

func (s *SparkleDatabase) Graph() SparkleGraph {
  var sg SparkleGraph
  for _, v := range s.Sparkles {
    // See if the edge already exists. If it does, increment the score.
    // Otherwise, insert it.
    exists := false
    for k1, v1 := range sg.Edges {
      if (v.Sparkler == v1.Sparkler && v.Sparklee == v1.Sparklee) {
        sg.Edges[k1].Weight++
        exists = true
      }
    }

    if !exists {
      // Construct an edge
      var e SparkleGraphEdge
      e.Sparkler = v.Sparkler
      e.Sparklee = v.Sparklee
      e.Weight = 1
      sg.Edges = append(sg.Edges, e)
    }
  }
  return sg
}

func StatsForUser(user string) SparkleStats {
  var ss SparkleStats
  return ss
}