// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®

module Crafter.Review:Schema_impl;
import :Schema;
import :Json;
import std;

namespace Crafter::Review::Schema {
    namespace {
        template <std::size_t N>
        Json Strings(const std::array<std::string_view, N>& values) {
            Json out = Json::array();
            for (const std::string_view value : values) out.push_back(value);
            return out;
        }

        Json String(std::string_view description = {}) {
            Json out = {{"type", "string"}};
            if (!description.empty()) out["description"] = description;
            return out;
        }

        Json StringList(std::string_view description) {
            return {{"type", "array"}, {"items", {{"type", "string"}}}, {"description", description}};
        }

        Json Verdict(std::string_view description) {
            Json out = {{"type", "string"}, {"enum", Strings(VerdictEnum)}};
            if (!description.empty()) out["description"] = description;
            return out;
        }
    }

    Json Finding(bool kernel) {
        Json contests = {
            {"type", "object"},
            {"additionalProperties", false},
            {"required", {"id", "why"}},
            {"properties", {
                {"id", String()},
                {"why", String("NEW evidence the disposition's recorded grounds do not survive")},
            }},
        };
        return {
            {"type", "object"},
            {"additionalProperties", false},
            {"required", {"finding", "evidence", "proposedAction", "items"}},
            {"properties", {
                {"finding", String(kernel ? "the defect - by your lens's charter question (objective wrongness, or a predicted reviewer comment)" : "the defect - by your lens's charter question (objective wrongness)")},
                {"evidence", String(kernel ? "file:line, msgid, or verbatim quote - no vibes" : "file:line, a verbatim quote, the steps taken in the application and what was observed (a screenshot or snapshot path) - no vibes")},
                {"proposedAction", String()},
                {"items", StringList("the INVENTORY unit ids this finding concerns, copied exactly; a finding that spans units lists them all")},
                {"dischargedBy", String("id of a disposition listed under DISPOSITIONS IN FORCE that discharges this finding (you verified its grounds); omit when none applies")},
                {"contests", contests},
            }},
        };
    }

    Json Note(bool kernel) {
        Json properties = {
            {"kind", {{"type", "string"}, {"enum", kernel ? Strings(KernelNoteKinds) : Strings(NoteKinds)}}},
            {"note", String()},
            {"evidence", String()},
            {"action", String(kernel ? "what the orchestrator does with it (bank / ledger / confirm at send / nothing)" : "what the orchestrator does with it (bank / record in the manifest / check at push time / nothing)")},
            {"id", String(kernel ? "disposition-review and refutation-verified only: the disposition id" : "refutation-verified only: the disposition id")},
        };
        if (kernel) properties["wouldComment"] = {{"type", "boolean"}, {"description", "disposition-review only: would this reviewer comment on the discharged item as the artifact stands?"}};
        properties["items"] = StringList("INVENTORY unit ids this note concerns");
        return {
            {"type", "object"},
            {"additionalProperties", false},
            {"required", {"kind", "note", "evidence", "action"}},
            {"properties", properties},
        };
    }

    Json Coverage(bool kernel) {
        return {
            {"type", "object"},
            {"additionalProperties", false},
            {"required", {"item", "verdict", "basis"}},
            {"properties", {
                {"item", String("an INVENTORY unit id, verbatim")},
                {"verdict", {{"type", "string"}, {"enum", kernel ? Strings(KernelCoverageVerdicts) : Strings(CoverageVerdicts)}}},
                {"basis", String(kernel ? "what this verdict rests on: the source fetched / tree ref / units crossed / your own message-id - or the literal string \"no record\""
                                        : "what this verdict rests on: the tree ref, the command run, the steps taken in the application and the evidence file - or the literal string \"no record\"")},
            }},
        };
    }

    Json BlockSchema(bool kernel) {
        return {
            {"type", "object"},
            {"additionalProperties", false},
            {"required", {"verdict", "findings", "notes", "coverage"}},
            {"properties", {
                {"verdict", Verdict("FIX FIRST iff any finding is undischarged - the pipeline derives the same and fails closed on disagreement")},
                {"findings", {{"type", "array"}, {"items", Finding(kernel)}}},
                {"notes", {{"type", "array"}, {"items", Note(kernel)}}},
                {"coverage", {{"type", "array"}, {"items", Coverage(kernel)}, {"minItems", 1}, {"maxItems", 1}, {"description", "exactly one entry: the unit this pass covers"}}},
            }},
        };
    }

    Json WholeSchema(bool kernel) {
        Json properties = {
            {"verdict", Verdict({})},
            {"findings", {{"type", "array"}, {"items", Finding(kernel)}}},
            {"notes", {{"type", "array"}, {"items", Note(kernel)}}},
            {"coverage", {{"type", "array"}, {"items", Coverage(kernel)}, {"description", "one entry per unit you were asked to cover"}}},
            {"summary", String(kernel ? "5-10 sentences: the artifact as you judged it and the constraints the block passes must respect; a persona adds its calibration digest (pet issues, phrasing, imperatives found in its own mail)"
                                      : "5-10 sentences: the range as you judged it and the constraints the block passes must respect (the functional lens: how to reach each touched screen, the login used, what the block passes must not touch)")},
        };
        if (kernel) {
            properties["predictedReview"] = String("persona lens only: the review this person would send, in their voice");
            properties["notMine"] = StringList("persona lens only: unit ids that are not your tree, file or decision (each must carry a basis in coverage)");
        }
        return {
            {"type", "object"},
            {"additionalProperties", false},
            {"required", {"verdict", "findings", "notes", "coverage", "summary"}},
            {"properties", properties},
        };
    }

    std::string SchemaJson(std::string_view kind, std::string_view mode) {
        const bool kernel = mode == "reply" || mode == "series";
        return DumpCompactSorted(kind == "block" ? BlockSchema(kernel) : WholeSchema(kernel));
    }
}