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path: root/sort.go
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package main

import (
	"fmt"
	"io"
	"os"

	"go.wit.com/log"
	"golang.org/x/text/cases"
	"golang.org/x/text/language"
)

// this file is named poorly. It has more than Sort()

func (pb *Files) makeNewSortfile(pf *File) error {
	wSort, _ := os.OpenFile(pf.Filebase+".sort.pb.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
	defer wSort.Close()
	wFind, _ := os.OpenFile(pf.Filebase+".find.pb.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
	defer wFind.Close()

	header(wSort, pf)
	header(wFind, pf)

	if !argv.Mutex {
		pf.syncLock(wSort)
	}

	if argv.Mutex {
		// use the mutex lock from the modified protoc.pb.go file
		pf.Bases.Lockname = "all.Lock"
	}

	pf.Base.iterTop(wSort)
	pf.Base.iterNext(wSort)
	pf.selectAllFunc(wSort)
	pf.iterSelect(wSort)

	pf.sortByFunc(wSort)

	/*
		pf.appendUnique(wFind) // Append() enforce no unique keys
		if argv.Delete {
			pf.deleteWithCopyFunc(wFind)
		} else {
			pf.deleteFunc(wFind)
		}
		pf.findFunc(wFind)
	*/

	// attempt to add sort functions for pf.Base
	pf.processMessage(pf.Bases, wSort, wFind)
	pf.processMessage(pf.Base, wSort, wFind)
	return nil
}

func (pf *File) processMessage(msg *MsgName, wSort, wFind io.Writer) error {
	var FRUIT string = cases.Title(language.English, cases.NoLower).String(msg.Name)
	log.Printf("Generating functions for %s\n", FRUIT)
	for _, v := range msg.Vars {
		if !v.IsRepeated {
			log.Printf("\tSKIP %s %s\n", v.VarName, v.VarType)
			continue
		}
		// use easier to read variable names APPLE and APPLES in the code
		var APPLE string = v.VarType
		var APPLES string = cases.Title(language.English, cases.NoLower).String(v.VarName)

		// try and find the message struct for APPLE
		var found *MsgName
		for _, m := range pf.MsgNames {
			if m.Name == APPLE {
				found = m
				break
			}
		}
		if found == nil {
			return fmt.Errorf("failed to find struct %s", APPLE)
		}

		found.addSortByMsg(FRUIT, APPLES, APPLE, wSort, wFind)
	}
	return nil
}

func (parent *MsgName) addSortByMsg(FRUIT, APPLES, APPLE string, wSort, wFind io.Writer) error {
	log.Printf("\tFOUND!: %s %s for %s\n", APPLES, APPLE, FRUIT)
	var COLORS []string

	for _, v := range parent.Vars {
		if v.HasSort {
			// log.Printf("\tSort!: %s %s for %s\n", APPLES, APPLE, v.VarName)
			newS := cases.Title(language.English, cases.NoLower).String(v.VarName)
			log.Printf("\t(x %s) SortdBy%s() *%sIter\n", parent.Name, newS, APPLE)
		}
		if v.HasUnique {
			newS := cases.Title(language.English, cases.NoLower).String(v.VarName)
			var COLOR string = newS
			COLORS = append(COLORS, COLOR)

			log.Printf("\t(x %s) AppendUniqueBy%s(%s)\n", parent.Name, newS, APPLE)
			parent.appendUniqueBy(wFind, FRUIT, APPLES, APPLE, COLOR)

			if v.VarType == "string" {
				log.Printf("\t(x %s) FindBy%s(string) *%s\n", FRUIT, COLOR, APPLE)
				parent.findBy(wFind, FRUIT, APPLES, APPLE, COLOR)
				log.Printf("\t(x %s) DeleteBy%s(string) *%s\n", parent.Name, newS, APPLE)
				if argv.Delete {
					parent.deleteByWithCopy(wFind, FRUIT, APPLES, APPLE, COLOR)
				} else {
					parent.deleteBy(wFind, FRUIT, APPLES, APPLE, COLOR)
				}
			}
		}
	}
	parent.insertByColors(wFind, FRUIT, APPLES, APPLE, COLORS)
	if len(COLORS) > 0 {
		parent.appendUnique(wFind, FRUIT, APPLES, APPLE, COLORS)
	}
	return nil
}