package args

import (
	"strings"

	"github.com/go-task/task/v3/taskfile"
)

// ParseV3 parses command line argument: tasks and global variables
func ParseV3(args ...string) ([]taskfile.Call, *taskfile.Vars) {
	var calls []taskfile.Call
	globals := &taskfile.Vars{}

	for _, arg := range args {
		if !strings.Contains(arg, "=") {
			calls = append(calls, taskfile.Call{Task: arg, Direct: true})
			continue
		}

		name, value := splitVar(arg)
		globals.Set(name, taskfile.Var{Static: value})
	}

	if len(calls) == 0 {
		calls = append(calls, taskfile.Call{Task: "default", Direct: true})
	}

	return calls, globals
}

// ParseV2 parses command line argument: tasks and vars of each task
func ParseV2(args ...string) ([]taskfile.Call, *taskfile.Vars) {
	var calls []taskfile.Call
	globals := &taskfile.Vars{}

	for _, arg := range args {
		if !strings.Contains(arg, "=") {
			calls = append(calls, taskfile.Call{Task: arg, Direct: true})
			continue
		}

		if len(calls) < 1 {
			name, value := splitVar(arg)
			globals.Set(name, taskfile.Var{Static: value})
		} else {
			if calls[len(calls)-1].Vars == nil {
				calls[len(calls)-1].Vars = &taskfile.Vars{}
			}
			name, value := splitVar(arg)
			calls[len(calls)-1].Vars.Set(name, taskfile.Var{Static: value})
		}
	}

	if len(calls) == 0 {
		calls = append(calls, taskfile.Call{Task: "default", Direct: true})
	}

	return calls, globals
}

func splitVar(s string) (string, string) {
	pair := strings.SplitN(s, "=", 2)
	return pair[0], pair[1]
}