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50 lines
1.7 KiB
50 lines
1.7 KiB
package cdr
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import (
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"encoding/csv"
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)
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// Some assumptions on our input, since encoding/csv reads everything as string. We expect 17 entries per line:
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// cid,time,type,cli,from,to,account,usage,costs,source,destination,leg,reason,package,package_costs,network_costs,service_costs
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//
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// - cid is free text, could be argued to be unique, but there are no guarantees.
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// - time is a timestamp formatted YYYY-MM-DD hh:mm:sd
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// - type is in {Voice,Data,SMS}, of course the header line is "type"
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// - cli,from should be \d+ (eg 31676012321)
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// - to is either [0-9*]+ for a (partially shielded/) phonenumber, or .+ for APN or Voicemail, or the likes
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// - account is free text (non-empty)
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// - usage is an integer >= 0
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// - costs is a float with four decimal digits. We strip the dot and interpret it as an integer, to avoid weird rounding errors during processing
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// - source,destination are free text, but typically either empty or take the form "word(s) - word(s) - word(s)"
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// - leg is an integer >= 1
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// - reason is in {ORIG,CFIM,CFOR,CFNA,CFBS,ROAM,PBXOR}, but there might be other ones
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// - package is free text (or empty)
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// - {package,network,service}_costs are either empty or conform to the "costs" column
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// FieldsPerLine are the expected number of fields in each CSV line.
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const FieldsPerLine = 17
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// ImportIndex keeps track of what column corresponds to what data.
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type ImportIndex int
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// These are our numbered input fields
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const (
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ImportUnknown ImportIndex = iota
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ImportCid
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ImportTime
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ImportType
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ImportCLI
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ImportFrom
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ImportTo
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ImportAccount
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ImportUsage
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ImportCosts
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ImportSource
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ImportDestination
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ImportLeg
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ImportReason
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ImportPackage
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ImportPackageCosts
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ImportNetworkCosts
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ImportServiceCosts
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)
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