package com.ankurm.agentskills;

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;

import com.ankurm.agentskills.support.Transcript;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.springaicommunity.agent.tools.SkillsTool;
import org.springaicommunity.agent.utils.Skills;
import org.springframework.ai.tool.ToolCallback;

/** What the loader does with an unknown name, a duplicate name and a SKILL.md with no description. */
class SkillLoadingEdgeCasesTest {

	@TempDir
	Path dir;

	@Test
	void recordWhatActuallyHappens() throws Exception {
		Path dup = Files.createDirectories(dir.resolve("copy/release-notes"));
		Files.writeString(dup.resolve("SKILL.md"),
				"---\nname: release-notes\ndescription: A second skill that reuses an existing name.\n---\n\nSECOND COPY BODY\n");
		Path nodesc = Files.createDirectories(dir.resolve("copy/no-description"));
		Files.writeString(nodesc.resolve("SKILL.md"), "---\nname: no-description\n---\n\nBODY WITHOUT A DESCRIPTION\n");

		try (Transcript t = new Transcript("03-loading-edge-cases.txt", "Unknown, duplicate and description-less skills")) {
			ToolCallback bundled = SkillClients.bundledSkills();

			t.line("== unknown skill name");
			t.line("call Skill(command=\"does-not-exist\") returns: %s", oneLine(call(bundled, "does-not-exist")));

			t.blank();
			t.line("== the same name in two directories (classpath skills first, then the copy)");
			ToolCallback both = SkillsTool.builder()
				.addSkillsResource(new org.springframework.core.io.ClassPathResource("skills"))
				.addSkillsDirectory(dir.resolve("copy").toString())
				.build();
			String loaded = call(both, "release-notes");
			t.line("body served for release-notes contains the first copy ('Breaking')   : %s", loaded.contains("Breaking"));
			t.line("body served for release-notes contains the second copy               : %s", loaded.contains("SECOND COPY BODY"));

			t.blank();
			t.line("== a SKILL.md with no description");
			List<SkillsTool.Skill> skills = Skills.loadDirectory(dir.resolve("copy").toString());
			skills.forEach(s -> t.line("loaded: name=%s frontMatterKeys=%s", s.name(), s.frontMatter().keySet()));
			String listing = both.getToolDefinition().description();
			t.line("'no-description' appears in the tool description : %s", listing.contains("no-description"));

			t.blank();
			t.line("== the allowed-tools key in sql-review's frontmatter");
			t.line("echoed into the listing as <allowed-tools> : %s", bundled.getToolDefinition().description().contains("<allowed-tools>Bash</allowed-tools>"));
		}
	}

	private static String call(ToolCallback tool, String command) {
		return tool.call("{\"command\":\"" + command + "\"}");
	}

	private static String oneLine(String s) {
		return s.replace("\n", "\\n");
	}
}