GraphQL API and utilities for the rpdata project
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package mirclike
import (
"errors"
"strconv"
"strings"
"time"
"git.aiterp.net/rpdata/api/models"
)
// ErrNotPost is returned by parsePost if the line is empty or not a post.
var ErrNotPost = errors.New("not a post")
// ParsePost parses a post from a mirc-like line. If the previous post is included (it can be empty), it will be used
// to determine whether midnight has passed.
func ParsePost(line string, date time.Time, prev models.Post) (models.Post, error) {
// Do basic validation
line = strings.Trim(line, "  \t\n\r")
if len(line) == 0 || !strings.HasPrefix(line, "[") {
return models.Post{}, ErrNotPost
}
// Parse timestamp
tsEndIndex := strings.IndexByte(line, ']')
if tsEndIndex == -1 || len(line) < tsEndIndex+5 {
return models.Post{}, ErrNotPost
}
tsStr := line[1:tsEndIndex]
tsSplit := strings.Split(tsStr, ":")
tsUnits := make([]int, len(tsSplit))
if len(tsSplit) < 2 {
return models.Post{}, ErrNotPost
}
for i := range tsSplit {
n, err := strconv.Atoi(tsSplit[i])
if err != nil {
return models.Post{}, ErrNotPost
}
tsUnits[i] = n
}
if len(tsUnits) == 2 {
tsUnits = append(tsUnits, 0)
}
// Determine timestamp from parsed data and previous post.
ts := time.Date(date.Year(), date.Month(), date.Day(), tsUnits[0], tsUnits[1], tsUnits[2], 0, date.Location())
if !prev.Time.IsZero() && prev.Time.Sub(ts) > 30*time.Minute {
ts = time.Date(prev.Time.Year(), prev.Time.Month(), prev.Time.Day()+1, tsUnits[0], tsUnits[1], tsUnits[2], 0, date.Location())
}
if line[tsEndIndex+2] == '*' {
split := strings.SplitN(line[tsEndIndex+4:], " ", 2)
post := models.Post{
ID: "UNASSIGNED",
LogID: "UNASSIGNED",
Time: ts,
Kind: "action",
Nick: strings.TrimLeft(split[0], "+@!~"),
Text: split[1],
Position: prev.Position + 1,
}
if post.Nick[0] == '=' {
post.Kind = "scene"
}
return post, nil
} else if line[tsEndIndex+2] == '<' {
split := strings.SplitN(line[tsEndIndex+2:], " ", 2)
post := models.Post{
ID: "UNASSIGNED",
LogID: "UNASSIGNED",
Time: ts,
Kind: "text",
Nick: strings.TrimLeft(split[0][1:len(split[0])-1], "+@!~"),
Text: split[1],
Position: prev.Position + 1,
}
if post.Nick[0] == '=' {
post.Kind = "scene"
}
return post, nil
} else {
return models.Post{}, ErrNotPost
}
}