package project

import (
	"encoding/json"
	"net/http"

	project_model "code.gitea.io/gitea/models/project"
	"code.gitea.io/gitea/services/context"
)

// MoveColumns moves or keeps columns in a project and sorts them inside that project
func MoveColumns(ctx *context.APIContext) {
	project, err := project_model.GetProjectByID(ctx, ctx.PathParamInt64(":id"))
	if err != nil {
		ctx.NotFoundOrServerError("GetProjectByID", project_model.IsErrProjectNotExist, err)
		return
	}
	if !project.CanBeAccessedByOwnerRepo(ctx.ContextUser.ID, ctx.Repo.Repository) {
		ctx.NotFound("CanBeAccessedByOwnerRepo", nil)
		return
	}

	type movedColumnsForm struct {
		Columns []struct {
			ColumnID int64 `json:"columnID"`
			Sorting  int64 `json:"sorting"`
		} `json:"columns"`
	}

	form := &movedColumnsForm{}
	if err = json.NewDecoder(ctx.Req.Body).Decode(&form); err != nil {
		ctx.ServerError("DecodeMovedColumnsForm", err)
		return
	}

	sortedColumnIDs := make(map[int64]int64)
	for _, column := range form.Columns {
		sortedColumnIDs[column.Sorting] = column.ColumnID
	}

	if err = project_model.MoveColumnsOnProject(ctx, project, sortedColumnIDs); err != nil {
		ctx.ServerError("MoveColumnsOnProject", err)
		return
	}

	ctx.JSON(http.StatusOK, map[string]string{"message": "columns moved successfully"})
}