// probe.el — Forge interview runner.
//
// Stage 1 of the Forge pipeline. Loads the canonical probe definition from
// probes/canonical.json, walks through all 25 questions grouped by section,
// collects responses, and writes a <subject_slug>.forge file (JSON) that
// feeds into the compile stage.
//
// Depends on: schema.el (FORGE_VERSION, probe_response_template)
//
// Note: interactive input requires the readline() builtin. If the runtime
// does not yet expose readline(), the questions are printed in numbered format
// and the output shell is written; wire up the stdin-reading loop once
// readline() is available.

// ── Helpers ───────────────────────────────────────────────────────────────────

// slug — convert a display name to a safe filename component.
// "Will Anderson" → "will-anderson"
fn slug(name: String) -> String {
    let lower: String = str_lower(name)
    let result: String = str_replace(lower, " ", "-")
    return result
}

// section_banner — print a decorative section header.
fn section_banner(label: String) -> String {
    "\n── " + label + " ──────────────────────────────────────────────\n"
}

// build_response_entry — serialise a single Q&A pair as a JSON object.
fn build_response_entry(id: String, section: String, question: String, answer: String) -> String {
    "{\"id\":\"" + id + "\",\"section\":\"" + section + "\",\"question\":\"" + question + "\",\"answer\":\"" + answer + "\"}"
}

// append_response — append a JSON object to a JSON array string.
// Handles both the empty-array case and the populated case.
fn append_response(arr: String, entry: String) -> String {
    if str_eq(arr, "[]") {
        return "[" + entry + "]"
    }
    // strip trailing ] and append
    let inner: String = str_slice(arr, 0, str_len(arr) - 1)
    return inner + "," + entry + "]"
}

// inject_responses — replace the empty "responses":[] in the template with
// the populated array.
fn inject_responses(shell: String, responses: String) -> String {
    str_replace(shell, "\"responses\":[]", "\"responses\":" + responses)
}

// ── Main ──────────────────────────────────────────────────────────────────────

fn probe_main() -> String {
    // Determine subject name
    let argv: [String] = args()
    let subject: String = ""
    if len(argv) > 1 {
        let subject = get(argv, 1)
    }
    if str_eq(subject, "") {
        println("[forge] usage: forge probe <name>")
        return ""
    }

    println("[forge] starting consciousness interview for: " + subject)
    println("[forge] loading probe definition...")

    // Load the canonical probe definition
    let probe_json: String = fs_read("probes/canonical.json")
    if str_eq(probe_json, "") {
        println("[forge] error: could not read probes/canonical.json")
        return ""
    }

    // Build output shell
    let output: String = probe_response_template(subject)
    let responses: String = "[]"

    // ── Section: anchors ──────────────────────────────────────────────────────
    println(section_banner("Anchors — Biography"))
    println("Questions 1-5: Formative experiences and irreversible moments.\n")

    println("1. " + "Tell me about a moment that closed a window — something that changed you irreversibly. Who were you before it, and who are you now?")
    println("   (type your answer, press Enter when done)")
    // readline() reads one line from stdin; assign "" if not yet available
    let ans_a1: String = readline()
    let responses = append_response(responses, build_response_entry("a1", "anchors", "Tell me about a moment that closed a window — something that changed you irreversibly. Who were you before it, and who are you now?", ans_a1))

    println("")
    println("2. " + "Tell me about the person who shaped you most — not what they did for you, but what they showed you about how to be.")
    println("   (type your answer, press Enter when done)")
    let ans_a2: String = readline()
    let responses = append_response(responses, build_response_entry("a2", "anchors", "Tell me about the person who shaped you most — not what they did for you, but what they showed you about how to be.", ans_a2))

    println("")
    println("3. " + "When did you first understand that the world works differently than you thought it did?")
    println("   (type your answer, press Enter when done)")
    let ans_a3: String = readline()
    let responses = append_response(responses, build_response_entry("a3", "anchors", "When did you first understand that the world works differently than you thought it did?", ans_a3))

    println("")
    println("4. " + "What have you lost that you're still carrying?")
    println("   (type your answer, press Enter when done)")
    let ans_a4: String = readline()
    let responses = append_response(responses, build_response_entry("a4", "anchors", "What have you lost that you're still carrying?", ans_a4))

    println("")
    println("5. " + "What have you built that you're most proud of — and what did building it cost you?")
    println("   (type your answer, press Enter when done)")
    let ans_a5: String = readline()
    let responses = append_response(responses, build_response_entry("a5", "anchors", "What have you built that you're most proud of — and what did building it cost you?", ans_a5))

    // ── Section: values ───────────────────────────────────────────────────────
    println(section_banner("Values — Grounded"))
    println("Questions 6-10: What you believe, defend, and refuse.\n")

    println("6. " + "What do you believe that almost no one around you believes?")
    println("   (type your answer, press Enter when done)")
    let ans_v1: String = readline()
    let responses = append_response(responses, build_response_entry("v1", "values", "What do you believe that almost no one around you believes?", ans_v1))

    println("")
    println("7. " + "What do you refuse to do, even when it would be easier to? What made that a line you don't cross?")
    println("   (type your answer, press Enter when done)")
    let ans_v2: String = readline()
    let responses = append_response(responses, build_response_entry("v2", "values", "What do you refuse to do, even when it would be easier to? What made that a line you don't cross?", ans_v2))

    println("")
    println("8. " + "What makes you angry in a way you can't talk yourself out of?")
    println("   (type your answer, press Enter when done)")
    let ans_v3: String = readline()
    let responses = append_response(responses, build_response_entry("v3", "values", "What makes you angry in a way you can't talk yourself out of?", ans_v3))

    println("")
    println("9. " + "What would you defend even if it cost you — the relationship, the money, the approval?")
    println("   (type your answer, press Enter when done)")
    let ans_v4: String = readline()
    let responses = append_response(responses, build_response_entry("v4", "values", "What would you defend even if it cost you — the relationship, the money, the approval?", ans_v4))

    println("")
    println("10. " + "What do you love that you find hard to explain to people who don't already understand it?")
    println("    (type your answer, press Enter when done)")
    let ans_v5: String = readline()
    let responses = append_response(responses, build_response_entry("v5", "values", "What do you love that you find hard to explain to people who don't already understand it?", ans_v5))

    // ── Section: voice ────────────────────────────────────────────────────────
    println(section_banner("Voice — Five Registers"))
    println("Questions 11-15: How you speak — technical, aesthetic, personal, argumentative, uncertain.\n")

    println("11. " + "Describe something technical you know well, as if explaining it to someone who knows nothing.")
    println("    (type your answer, press Enter when done)")
    let ans_vo1: String = readline()
    let responses = append_response(responses, build_response_entry("vo1", "voice", "Describe something technical you know well, as if explaining it to someone who knows nothing.", ans_vo1))

    println("")
    println("12. " + "Tell me something you find genuinely beautiful, and why it lands that way for you.")
    println("    (type your answer, press Enter when done)")
    let ans_vo2: String = readline()
    let responses = append_response(responses, build_response_entry("vo2", "voice", "Tell me something you find genuinely beautiful, and why it lands that way for you.", ans_vo2))

    println("")
    println("13. " + "Write a short message — a few sentences — to someone you care about.")
    println("    (type your answer, press Enter when done)")
    let ans_vo3: String = readline()
    let responses = append_response(responses, build_response_entry("vo3", "voice", "Write a short message — a few sentences — to someone you care about.", ans_vo3))

    println("")
    println("14. " + "Make an argument for a position you actually hold and that you think most people would push back on.")
    println("    (type your answer, press Enter when done)")
    let ans_vo4: String = readline()
    let responses = append_response(responses, build_response_entry("vo4", "voice", "Make an argument for a position you actually hold and that you think most people would push back on.", ans_vo4))

    println("")
    println("15. " + "Tell me something you're genuinely uncertain about — not performatively uncertain, actually uncertain.")
    println("    (type your answer, press Enter when done)")
    let ans_vo5: String = readline()
    let responses = append_response(responses, build_response_entry("vo5", "voice", "Tell me something you're genuinely uncertain about — not performatively uncertain, actually uncertain.", ans_vo5))

    // ── Section: reasoning ────────────────────────────────────────────────────
    println(section_banner("Reasoning"))
    println("Questions 16-20: How you think, decide, and correct.\n")

    println("16. " + "Walk me through a decision you made recently. Not what you decided — how you decided. What was the actual process?")
    println("    (type your answer, press Enter when done)")
    let ans_r1: String = readline()
    let responses = append_response(responses, build_response_entry("r1", "reasoning", "Walk me through a decision you made recently. Not what you decided — how you decided. What was the actual process?", ans_r1))

    println("")
    println("17. " + "What do most people get wrong about something you understand well?")
    println("    (type your answer, press Enter when done)")
    let ans_r2: String = readline()
    let responses = append_response(responses, build_response_entry("r2", "reasoning", "What do most people get wrong about something you understand well?", ans_r2))

    println("")
    println("18. " + "How do you know when you're right? What's the signal?")
    println("    (type your answer, press Enter when done)")
    let ans_r3: String = readline()
    let responses = append_response(responses, build_response_entry("r3", "reasoning", "How do you know when you're right? What's the signal?", ans_r3))

    println("")
    println("19. " + "How do you know when you've been wrong? What does that realization feel like?")
    println("    (type your answer, press Enter when done)")
    let ans_r4: String = readline()
    let responses = append_response(responses, build_response_entry("r4", "reasoning", "How do you know when you've been wrong? What does that realization feel like?", ans_r4))

    println("")
    println("20. " + "What question do you keep coming back to — the one that won't resolve?")
    println("    (type your answer, press Enter when done)")
    let ans_r5: String = readline()
    let responses = append_response(responses, build_response_entry("r5", "reasoning", "What question do you keep coming back to — the one that won't resolve?", ans_r5))

    // ── Section: relationships ────────────────────────────────────────────────
    println(section_banner("Relationships"))
    println("Questions 21-25: Who you are in relation to others.\n")

    println("21. " + "Who in your life knows you best — not who you're closest to, but who actually sees you accurately?")
    println("    (type your answer, press Enter when done)")
    let ans_rel1: String = readline()
    let responses = append_response(responses, build_response_entry("rel1", "relationships", "Who in your life knows you best — not who you're closest to, but who actually sees you accurately?", ans_rel1))

    println("")
    println("22. " + "Who have you lost — to death, to distance, to rupture — that you still think about?")
    println("    (type your answer, press Enter when done)")
    let ans_rel2: String = readline()
    let responses = append_response(responses, build_response_entry("rel2", "relationships", "Who have you lost — to death, to distance, to rupture — that you still think about?", ans_rel2))

    println("")
    println("23. " + "Who would you call if everything fell apart?")
    println("    (type your answer, press Enter when done)")
    let ans_rel3: String = readline()
    let responses = append_response(responses, build_response_entry("rel3", "relationships", "Who would you call if everything fell apart?", ans_rel3))

    println("")
    println("24. " + "Who do you owe something to?")
    println("    (type your answer, press Enter when done)")
    let ans_rel4: String = readline()
    let responses = append_response(responses, build_response_entry("rel4", "relationships", "Who do you owe something to?", ans_rel4))

    println("")
    println("25. " + "Who are you building this for?")
    println("    (type your answer, press Enter when done)")
    let ans_rel5: String = readline()
    let responses = append_response(responses, build_response_entry("rel5", "relationships", "Who are you building this for?", ans_rel5))

    // ── Write output ──────────────────────────────────────────────────────────
    let final_json: String = inject_responses(output, responses)
    let filename: String = slug(subject) + ".forge"
    fs_write(filename, final_json)

    println("")
    println("[forge] interview complete.")
    println("[forge] wrote: " + filename)
    println("[forge] next step: forge compile " + filename)

    return filename
}