using ClaudeDo.Data;

namespace ClaudeDo.Data.Tests;

public class PromptFilesTests
{
    [Fact]
    public void RenderTemplate_replaces_known_tokens()
    {
        var outp = PromptFiles.RenderTemplate(
            "Plan for {date}, cap {maxTasks}.",
            new Dictionary<string, string> { ["date"] = "2026-06-04", ["maxTasks"] = "5" });
        Assert.Equal("Plan for 2026-06-04, cap 5.", outp);
    }

    [Fact]
    public void RenderTemplate_leaves_unknown_braces_intact()
    {
        var outp = PromptFiles.RenderTemplate(
            "## {Wochentag}, {dd.MM.yyyy} — {start}",
            new Dictionary<string, string> { ["start"] = "01.06.2026" });
        Assert.Equal("## {Wochentag}, {dd.MM.yyyy} — 01.06.2026", outp);
    }

    [Fact]
    public void DefaultFor_system_mentions_blocked_marker_and_scope()
    {
        var d = PromptFiles.DefaultFor(PromptKind.System);
        Assert.Contains("CLAUDEDO_BLOCKED:", d);
        Assert.Contains("unattended", d, StringComparison.OrdinalIgnoreCase);
    }

    [Fact]
    public void DefaultFor_planning_initial_has_title_and_description_tokens()
    {
        var d = PromptFiles.DefaultFor(PromptKind.PlanningInitial);
        Assert.Contains("{title}", d);
        Assert.Contains("{description}", d);
    }

    [Fact]
    public void PathFor_planning_is_planning_system_file()
    {
        Assert.EndsWith("planning-system.md", PromptFiles.PathFor(PromptKind.Planning));
    }

    [Fact]
    public void PathFor_merge_helper_kinds_map_to_their_files()
    {
        Assert.EndsWith("merge-helper-system.md", PromptFiles.PathFor(PromptKind.MergeHelper));
        Assert.EndsWith("merge-helper-initial.md", PromptFiles.PathFor(PromptKind.MergeHelperInitial));
    }

    [Fact]
    public void DefaultFor_merge_helper_covers_all_five_phases()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.False(string.IsNullOrWhiteSpace(d));
        Assert.Contains("Phase 0", d);
        Assert.Contains("Phase 1", d);
        Assert.Contains("Phase 2", d);
        Assert.Contains("Phase 3", d);
        Assert.Contains("Phase 4", d);
        Assert.Contains("Phase 5", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_names_the_tools_each_phase_needs()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.Contains("batch_get_tasks", d);      // phase 0
        Assert.Contains("update_task", d);          // phase 1 + 2
        Assert.Contains("get_app_settings", d);     // phase 3
        Assert.Contains("update_task_status", d);   // phase 3
        Assert.Contains("review_task", d);          // phase 4
        Assert.Contains("continue_merge", d);       // phase 4
        Assert.DoesNotContain("run_task_now(", d);  // single override slot — must not batch-start
    }

    [Fact]
    public void DefaultFor_merge_helper_only_asks_dedupe_questions_when_a_candidate_exists()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.Contains("move straight to Phase 2", d);
        Assert.Contains("do not ask the user to confirm the absence of duplicates", d);
        Assert.Contains("Cancel nothing without an explicit answer", d);
        Assert.DoesNotContain("whenever you are unsure", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_phase0_treats_brief_as_primary_source()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.Contains("primary source", d, StringComparison.OrdinalIgnoreCase);
        Assert.Contains("batch_get_tasks", d);
        Assert.Contains("Do not act on any single task before you have read", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_allows_splitting_bundled_tasks_in_phase_2()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.Contains("Propose splitting it to the user", d);
        Assert.Contains("add_task/add_subtask", d);
        Assert.Contains("do not invent requirements", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_checks_effective_max_turns_before_queuing()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.Contains("effective max-turns", d);
        Assert.Contains("get_list_config", d);
        Assert.Contains("set_task_config", d);
        Assert.Contains("get_task_config", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_checks_file_collisions_before_merge_order()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelper);
        Assert.Contains("Default to the order the brief lists them", d);
        Assert.Contains("tell the user which tasks collide", d);
        Assert.Contains("NORMAL case, not a failure", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_initial_has_repo_token()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelperInitial);
        Assert.Contains("{repo}", d);
    }

    [Fact]
    public void DefaultFor_merge_helper_initial_has_scope_and_tasks_tokens()
    {
        var d = PromptFiles.DefaultFor(PromptKind.MergeHelperInitial);
        Assert.False(string.IsNullOrWhiteSpace(d));
        Assert.Contains("{scope}", d);
        Assert.Contains("{tasks}", d);
    }

    [Fact]
    public void RenderTemplate_merge_helper_initial_substitutes_scope_and_tasks()
    {
        var outp = PromptFiles.RenderTemplate(
            PromptFiles.DefaultFor(PromptKind.MergeHelperInitial),
            new Dictionary<string, string> { ["scope"] = "All lists", ["tasks"] = "- [Idle] T1" });
        Assert.Contains("Scope: All lists", outp);
        Assert.Contains("- [Idle] T1", outp);
        Assert.DoesNotContain("{scope}", outp);
        Assert.DoesNotContain("{tasks}", outp);
    }
}