src/main/kotlin/de/uapcore/lightpit/viewmodel/PathInfos.kt

/*
 * Copyright 2023 Mike Becker. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package de.uapcore.lightpit.viewmodel

import de.uapcore.lightpit.HttpRequest
import de.uapcore.lightpit.OptionalPathInfo
import de.uapcore.lightpit.dao.DataAccessObject
import de.uapcore.lightpit.entities.Component
import de.uapcore.lightpit.entities.Version

abstract class PathInfos(val issuesHref: String)
class PathInfosOnlyIssues(issuesHref: String): PathInfos(issuesHref)
data class PathInfosFull(
    val projectInfo: ProjectInfo,
    val versionInfo: OptionalPathInfo<Version>,
    val componentInfo: OptionalPathInfo<Component>
): PathInfos("projects/${projectInfo.project.node}/issues/${versionInfo.node}/${componentInfo.node}/")

private fun obtainProjectInfo(http: HttpRequest, dao: DataAccessObject): ProjectInfo? {
    val pathParam = http.pathParams["project"] ?: return null
    val project = dao.findProjectByNode(pathParam) ?: return null

    val versions: List<Version> = dao.listVersions(project)
    val components: List<Component> = dao.listComponents(project)

    return ProjectInfo(
        project,
        versions,
        components,
        dao.collectIssueSummary(project)
    )
}

fun withPathInfo(http: HttpRequest, dao: DataAccessObject): PathInfosFull? {
    val projectInfo = obtainProjectInfo(http, dao)
    if (projectInfo == null) {
        http.response.sendError(404)
        return null
    }

    val version = http.lookupPathParam("version", projectInfo.versions)
    val component = http.lookupPathParam("component", projectInfo.components)

    if (version == OptionalPathInfo.NotFound || component == OptionalPathInfo.NotFound) {
        http.response.sendError(404)
        return null
    }

    return PathInfosFull(projectInfo, version, component)
}